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=== Page 1 ===
MICRODILNES
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AGOUSTRESPEVICES
Bois LOG Note
=== Page 2 ===
SHURE SUPER-CARDIOID
“BROADCAST” General: Models 556 ond 55 are Super-
Cardicid type unidirectional moving-coll dynamic
microphones providing -wide-ronge high quolity repro-
duction of sound. The true unidirectional choracteristic
of the “Unidynes,” obteined by the “uniphase™ prin-
= WN Gple provides highly sotisfactory operotion under
: adverse ecoustic conditions where conventional micro-
4 phones would be precticolly useless.
as = = The microphones hove a New Acousto-Mechanical
oe ee a Grevit containing « moving-coil clement, which operating
F oy in conjunction with @ bigh flux magnet provides high
re a x efficiency ond smooth peck free response from 40 to
al YY 15,000 cycles. The rear response is down approxi-
2 . y motely 15 db, due to the “uniphase” unidirectional
ee Tt re network. ; cay onic take
‘meme ttn new moving-co” unit is provi with o e
’ = | ‘ wind-screen fo permit quiet out-door operction. As a
precaution agoinst mechenico! vibration pickup, the unit
f is spring-suspended inside the microphone case.
| , The coses are moder in design with attractive stream-
ro od ‘J – lining and grille treatment, and cre provided with
_— aa swivels that allow the microphones to be oimed ot the
: source of sound for best pickup.
. 4 s
— vey Y Applications: Mode! 556 is especially con-
ne s structed and tested to meet the requirements of the
% broadcast studio, and is held within close tolerances In
i frequeny response and directivity.
| Model 55 is suitable for high-quality recording,
j a public address, and similar applications.
4 . The true unidirectional characteristic of the “Uni+
‘ dynes” provides cn easy solution to the feedback
problem in reverberant locatiors, facilitates orchestral
bi j placement, permits best utilizction of spoce in small
o broadcast studios, ond allows practically completo
Fl rT = excision of unwanted noises. The swivel allows the
‘ } head to be tilted through an angle of 90°, permitting
SF the microphone to be cimed al the source of sound.
MODEL 556 The microphones cre unusually rugged and cre
practically immune to the effects of moisture, tempera-
ture and mechanical vibretion,
Model “556” is @ Dynomic Super-Cardixid Micro-
phone especiclly designed for Broadcasting. It is held
within extremely dose tolerances in frequency re- CALIBRATION SERVICE
sponse and directivity, ond is equipped with o speciol
vibrotion isclotion unit, which eliminctes reproduction As a service to the Blectro-Acoustic Industry,
of vibration transmitted from the stand. Shure Brothers laboratories offer o calibration
service on the “556″ and “55” microphones
— —_ — —__—— for use os secondary standards. The price for
| mover CABLE SHPG. COE ust a colibraticon from 60-15,000 cydes per
| == WOE = pre second is $25.00, net.
556 70. Avatbe | RUMUB $92.50
2 SHURE
=== Page 3 ===
All microphones have the standard 34°-27 thread ee ”
and may be mounted on any Shere desk, banquet, U N I DY N E
or floor stand.
Model 556 “Broadcast” has a 7-foot two conductor Mh
shielded coble, trimmed for the attochment of any =
type plug. The cable is held by screw terminals in a
the bose of the isolation unit ond may be easily
reploced by longer lengths. % /
Model 55 “Unidyne” hos 25 feet of two conductor oe | S
shielded cable with c detachable plug. =
Impedance Data: Models 556 ond 55 =
Microphones are of the multi-impedance type. They
moy be worked directly into a 35-50 ohm fine, o
150-250 ohm line, or a high impedance input. Selection y
of these impedances is accomplished by changing the
position of the switch of the rear of the microphone. ‘=f Cc
The switch positions are marked “‘L” for low Impedance XY a
(35-50 ohms), “M™ for medium impedance (150-250
obens}, ond “HK” for high impedance (35,000 ohms}.
The low and medium impedorce positions of the
Model 5546 mey be fed into a stondard low or medium
impedance input cmplifier or into an amplifier with
high impedance input. in the latter case, Shure Model
A86A Cable-Type Transformer is cvailable for
coupling the low impedance line to the amplifier put. s
The double winding primory of the Shure Model A86A –
Cabie type transformor permits coupling either a 35-50 MODEL 55
oben line or 1D ou en ne fo high impedance input. Model 55 has the same mechonical properties os
The low and medium impedance positions are recom the 556, with the exceptions noted on the opposite
mended where long cable lengths are required or under page, referring to the vibration isolation unit, It hes
conditions of severe hum disturbances. The pormissible boon most widely used in high-quality public cddress,
line length is practically unlimited, since neither response recording, communicotions, small studio and remote
nor level is oppreciably offected by recsonable lengths broadeasting.
of line. The Unidyne is perhops the most widely used and
The high impedance positicn on the Modols 556 ond publicized microphome in the world for public ad-
55 Mkrophones may be used with any omplifier dress. It hes been specified by outstanding ccoustic
with on input impedance of 100,000 ohms or more. engineers for netionally-known artists ond important
events,
MULTI-IMPEDANCE SWITCH ON MODELS “55” AND “‘S56” MODE | came | S79. | coor | tS
MMPED. TABLE | OUTPUT LEVEL ss | 254, | atitts | pum | $47.90
56.1 db below ————————————— ——————e
t–35-50 1 Mibwoe per ir -P
2M | 10 see” ugnal J }
ease) sae eiee il
10 bar* vgnol y
H ~ ,
a b A
Mero er Switches are cvailable: On-Off or Grip-Te-Telk. Fee complete date,
#0 page 10,
3
=== Page 4 ===
HIGH-OUTPUT “SONODYNE”’
–
ee THE ‘”SONODYNE”
o “a General: The Model 51 “Sonodyne” is a high-out-
; * put pressure-type dynamic microphone with wide-range
iy \ = r frequency response and semi-directiono!l pickup chor-
\ @i i octeristics. It feotures the multi-impedance switch which
3 = a permits the selection of either low, medium or high im-
Pe pedence by simply turning the switch in the front of the
P oe . cose. The 5} operates on the principle of a moving
a ‘ coil clement in a magnetic field, A high flux magnet is
7 used In the magnetic circvit, which together with a spe-
i ee cially designed moving system and associated acoustic |
Ps a network, provides high efficiemy and smooth peok-free
Ps eS response. It hos semi-directional pickvp characteristics,
a The cose is rich sotin chrome-plated, attractively styled
SS for improved acoustical performance. The microphone
. & provided with a built-in receptocle and o two-con- |
‘ s ‘ ductor shielded cable with microphone plug attached. |
s Applications: Model 51 microphone is ideal for
7 8 public oddress; wire, fope and disc recording; call
¢ systems; communicctions equipment; and similar ap-
‘ plications. Because of its high output it hes been selected
i – 2 and highly recommended by mony leading manu-
, a focturers of wire ond tape recorders as the “ideal”
i microphone. It replaces conventional inexpensive micro-
oY a phones supplied with wire and tope recorders os orig-
j – rah 2 mol equipment. The “Sonodyne”™ will give improved
rf – recording —will stand up under rugged use.
= i it The wide-range response frequency choracteristic
eit 7 provides high quality reproduction of sound from 60 to
iu 10,000 <.p.s. The microphone can also be used close to
the fips without undue low frequency emphasis. Extreme
MODEL “51″ ruggedness and immunity to severe temperature and
twenidity conditions are inherent in the design.
WAFECANCE TABLE | OUTPUT LEVEL Connections: the Model 51, being o muiti-im-
: pedance type, may be worked directly into a 35-50
L—35.50 ches 530 ® halen} ae tor ohm input, o 150-250 ohm input, or a high impedance
pa ‘ input. Selection of these impedances is accomplished by
| t= 1$0.250 ohms 52.5 db below 1 Milf wort for rotating the shoft of the switch through the hole in the
10 Microbee sigral front of the micropores switch positions ore morked
.SOdSSC gpa em ac “L” for low impedorce 50 ohms), “M” for medium
H—High Inpedence |, “oe eee impedance (150-250 ohms), ond “H” for high imped-
ance (35,000 ohms).
i MODEL CAME eons CODE ps The low and medium impedarce positions cre
a ss }———— recommended where bong cable lengths are required
st 204. 4% I RUSON S975 or under conditions of severe hum disturbances. The
ny yr – , permissible tine length is practically unlimited, since
| neither response nor level is oppreciably offected by
– reasonable lengths of cable. The high impedance posi- |
: tion moy be used with ony public address omplifler or
other amplifier with an input impedance of 100,000
ohms or more. For best high frequency response with
high impedance, the total cable lengths should not
9 exceed 25 feel.
: “Sonodyne” hes the standard %4″+27 thread and may
sapepelon Sn See Sey retem Fey epee ee be Samed eis ony Shure desk, or floor stand.
i SHURE
=== Page 5 ===
4 THE ‘GREEN BULLET”’
Tho “Green Bullet” is ¢ new Shure Controlled Reluctance Microphone. It is ,
@ mognetic unit, espedally designed to provide quality music and speech
4 — reproduction at moderate cost. The “Green Bullet” is proctically immune
— to the effects of high temperatures and humidity. It Is a rugged streamlined
unit thot lends itself to fine-quality low-cost installations where durability
is on importont factor.
The “Green Bullet” has a stability assured by unique control of the
reluctance of the magnetic system. It features: high output, good response,
high impedance without the need of a transformer. The “Green Bullet”
has a beatiful modern metallic green finish with a ploted grille. Fre-
quency response is 100 to 7000 <.p.s. Furnished with 15” single-conductor,
shielded cable.
MODEL “520″
MOOR | CABLE | CUTPUT LEVEL WWPEDANCE | Sur, WI. cove UST PRICE
—_ — 52.5 db bwow |
$20 1h, 1 volt per HIGH he RUDAL $16.90
riobor | | |
OS I =
The new Shure “Ranger” is @ rough-tough Controlled Reluctance micro-
phone. It is a now development of a similar magnetic unit originally housed i,
in microphones used by the Armed Forces, The “Renger” is espedally fe
recommended for those cpplications where long lines ore used, and a i Oo t ‘
rugged hand-held microphone is needed. It is ideal for ovtdoor public i 4
address, mobile communications, homs, audience participation shows, etc. } lm
The “Ranger” is designed for clear, crisp, natural-voice response of – i
high intelligibility. It is easy to use, fits swgly in the palm of the hand; and |
has a heavy-duty single-throw, double-pole leaf-type switch for push-to- ‘aa
talk operation. Phosphor-bronze blades and silver contacts for maximum 7
operating life. It is furnished with 7’ three-conductor shielded cable. . :
is? 3.
Frequency response is 100 to 9000 cp.s. 4505″ SERIES
(Controlled Reluctance)
MODE CABLE OUTPUT LEVEL | WAPEDANCE sup. wr. | cove | UST PRKE
508 30,3 db below F vot 190.230 1% & | RUDAY | $25.00
permicrobor | ohms |
| sose rh [ee Ub below} voll) High | Vem | aUDAX $25.00
per microbor | | |
biaberat ape Pree ee a = — ~ ; ————————
=== Page 6 ===
“HERCULES”
Hore is the revolutionary new Shure Controlled Reluctance Microphose
—the “Hercules.” It is o Hond-Held magnetic unit that provides the
= ruggedness, the clear reproduction, the high output long needed for
Public Address, Communications, and Recording—at an omozingly low
price! It opens vast new fields of applicationt Asncuncing ond Mobile
rn Public Address Systems [includiag Cormivats, Circuses, Parking Lots,
es oe Paging Systems, etc); Communications; Dicieting Machines; Portable
| —s \ Recording Machines; Home Recording; high quolity Inter-Commesica-
A } tion, The “Meroules” is a tovgh microphone, designed to stond
7 — \ vp under rough treotment, It is expecially idec! for general-purpose
J \ wie In tropkel countries and all coostel oreas.
al yl i The “Hercules” hos a stebility assured by unique control of the
, — fl reluctance of the magnetic system. High semitivity ond good fidelity
1 r are achieved becouse of its bolonced-crmature tramducer. The
i = mkrophose can actvally be ued os a transmitter ond receiver!
J a =) Provides high-quofity reprodection ot very low cost. High impedome
— y is obtained without the use of a tronsformor, The “Hercules” con be
ae used either Indoors or Outdoors—in the band, on @ desk, or on a
a | stand. Frequency responve ix 100 fo 7000 cp.s. Furnished with 7’
fabric-covered cable. Metallic green finiss Complete with stond
adopter, Die-cest case. 2%” wide, 314″ high, 1)4″ thick.
ee —— 3 —
| moon | one platy |wrtoance| = cove | ae
“510″ SERIES 52.3 db |
sioc | 7H. |telow 1 vor] Nigh IM m® | RUTUF | $12.95
per pvicrobor! |
=— ~ =e = ———
; CONTROLLED 5108 |, 325 +, | j |
RELUCTANCE Iwi | 7m |betow t vot) High | vas, RUTUS | $14.95 |
CARTRIDGE || |permicobar|
Warobed mane orm per oy Om = == °
i e The Model 85 Controlled
{ Reluctonce Microphone
Cartridge is available for service instollation and is ideal also for the replacement of crystal micro-
5 phone cortridges in Shure cases of the Model 707A design shown on page 8. Complete installation
instructions In English and Sporish ore induded. It is on acoustically controlled balonced-ormature
‘ tromducer ideal for both microphose and soft-speaker epplicctions. It Is proctically unoffected by
‘ hect ond humidity. Supplied with rubber mounting ring. Overall diameter of mounting ring 244″)
thickness of rubber ring #4″. Overoll depth of cartridge 4”. SNpping Weight 4 oz
Model: RS Coder RUTUC.. 0.6… cc ececceececececscccccetennteterrerersesecensesahist Priges $9.00
THE “REX”
LOW-COST CRYSTAL MICROPHONE
Here is tho most striking-looting low-cost crystol microphone ever designed, the new
Shure “Rex”. Its extremely low price mokes this Hand-Held crystal microphone o 7
neturol for Hors, low-cost Public Addross Systems, ond os a replacement for howe- OS
recording microphones. The “Rex” iso ragged unit designed for crispnoss of speech and — a
dependabisty. It is recommended for we where good-quality speech reproduction Is Ff a
required ond low cost is an important factor. Frequency response is 60 to 6000 cp.s. _ i
Fureished with 7‘ fabric covered, single conductor, shielded cable. Burgundy Red ,
metallic finkh. Complete with stund adapter. 234” wide, 31%” high, 154″ tick.
———eee rT one
moott | CAME Cva _| iareosoice| Bate | cove pe — —
50 below Tie ] |
710A 7h | 1 volt per | High V6, | Rupe | $10,00
| ‘ sicrobor_| -! | .
| 50 St tow | —
| 710s 7a, | | wot per | High TY th, nuoer $12.00
wih switch) reirobor |
ae —— “710″ SERIES
6 SHURE
=== Page 7 ===
‘”MONOPLEX’’ |
SUPER-CARDIOID CRYSTAL
The Shure “Monoplex” is a high output Super-Cardicid Sa
Crystal Microphone with the potented Shure “Uniphase” la@ – ‘
| pringiple. It employs the some type of acoustic phase jaa fa .
| shifting network used in the highest cost Shure broadcast / .
microphones. It provides a cancellation of approximately 15 3 .
db. for sound approoching from the reor–over o brood ) [x 9 ;
| range of frequencies, and reduces pickup of random sound ere My x |
| energy by 73%. It offers the odvontages of higher-priced Hy Z| Ss
| super-cardicid performance at low cost. Model 737A sa oe a >
| unidirectional wide-range diaphragm type microphone. ‘ yj } ca
| The true wnidirectioncl “super-cerdioid” choracteristic Pe 4 r
of the “Monoplex” cllows highly satisfociory operation Aen
| under adverse conditions of bockground noise and rever- Hy
| beration where a conventional microphone would be
| practically useless, The “Monoplex” contains a diaphragm:
| type element combined with acoustical networks which ans = }
couse cancellation of sound pressures for sounds incdent { ) 7 i
from the rear, The crystal is “Metal-Seal” covered to oe e
withstand adverse climatic conditions. Case is pivoted of LS
} the recr and may be conveniently pointed in the direction MODEL 737A
} of the desired sound, or pointed upwards fornon-direc- The Shure “Monoplox” is high-output, unidirectional
tional horizonto! plane pickup. Satin-Chrome finish. crystal microphone. It is the only super-cardioid
crystal microphone, and as such ronks far above
ordinery erystal microphones. Its high output provides
| Applications: The Shure “Monoplex” is excel- thet extra “push” that is needed for different opplica-
| lent for high-quality public-address, communications, tions, where a “strong” voice is a “must.” Hos special
snp rigor onion ula Gy Sari fg
The true wide-range unidirectional characteristic of guitt.in cable connector. Stondard %”-27 thread.
the “Monoplex™ creates an casy solution to the feed- Height 4″, Width 33¢”. Thickness 174″. Ship. wt. 4 lbs
back problem in reverberant locotions, facilitetes [Rexecan] seed Gee oneee eee a
orchestral placement, permits good utilization of space OE Ce OU eee eee | PRKE
in small recording or broodcasting studios, and allows meee | ses SAO et =| ees | een
@ practically complete exclusion of unwonted noises per | once
Frequency response is from 60 to 10,000 cycles over oa r
@ wide range angle ot the front, yet practically un- . mn
affected by sound approaching from the rear. (Rear i) Pan
response down opproximately 15 db.} Permits more i * an |
volume without feedbock—simplifies microphone and y pai, | Sue
specker plocement—greatly improves systems using ye ad : a
| conventional microphones. ecbittenas ere evaBables 00-08 or rip-te Falk. Fer complete data, — |
: — Gi 7
=== Page 8 ===
“& 7O7A CRYSTAL
The Model 7074 bat been designed to give good-quality perlormance at low
cost. It has good response chorocteristics, is free from peaks, ond hos typicol
= s semidirectional pickup. I uses moistere-proofed Bimorph Crystol, mechonkelty
bolated. Ideol for voice and music reproduction. Suitable for low-cost P. A.
systema, call systems, amateur ‘phone transmitters ond similor applications.
itis fished in Peorl Groy with highly-polished plating on front grille. Noturet
life-ike reproduction. High output level at eed of cable. Hos a seven-foot single-
a conductor shielded coble with spring protector. The core it o heavy die costing,
is sirople in design ond in excefer? taste. Stondord 44°27 thread. Diameter }
2%”. Shipping weight 114 pounds. Medel 707A Crystal Microphone (Stand
not inched].
[ moo | CABLE curut | mrepance cope | SHAG.) UST |
[ 51.0 db below | |
_ 7o7A | 7H. 1 vol per SUDOF TR | $1450
drain: a
| | | S45 dd below Wpedexe /
7O7A—20/ 20f. | 1 wot per RUOOK 1¥5 ba, | $16.00 |
| on microbor | | }
i Mer ae Ge pre eee
NOTE The crite ereptone cxeidae, Me dt Uj avetenbe—te rplecoment peroern Af dh paler
707% shown on Stand $348 pot ger eteroear, ie: ide Coqsaaey Gamacietetc Respance te b 000 cysbes. Rochathe Sait Crputel,
STRATOLINER
The microphone Is olwoys in the public eye. It is the only part of the sound system your
ovdience o¢ buyers seo. The Shure “Strotoliner” gives you the opportunity to use an
expensive-looking microphone even when low cost is an important foctor. High ovtpyt , |
level with wide-range respon (free from undesirable peoks) for good reproduction lm y
of wither voice or music, Uses gecvine Bimorph Crystol. When ploced horizontelly, the = – |
708A is semidixectional; ued verticolly (microphone pointed straight up) it becomes —————— =)
non-directional in the hotizoetal plane, ond performers may be placed off crowd it hy 7 i
without frequency discrimination. A swivelis provided to permit tilting of the microphone
through on cngle of 90°. Case dimorsions, diometer 22″, length 47x”. Stond thread »
4427. Shippieg weight 2¥4 pomds Frequency response is 60-8000 cp. Poort >
Groy firth. ~ 4!
moot | case | ourpuT LvE | UAPEDANCE cove | ASE i”
—— ) i ~ | 4 4 4
51.0 db below | rr
708A 7h. ore volt per muoUM | $27.50 | 4
microbor High | |
mn Impedarce —— -——_——} \
| S45 db below | |
708—20 | 20%, one volt per mUvAT | $29.09 z
Lf eneroboe 1} Seliche sore oveiluble, soe page 10
Nixroiees mane dyn per ig om
} SHURE 76B LAPEL MICROPHONE |
j Designed for Public Address, lecturing, portoble tranunitters, and all general uses for
‘ intellighble reproduction of speech, Permits vier to move freely, It is @ pressore-actoated
i Giophragm-type crystal microphone. The crystal used is o Grophoil (high copacity)
, Bimorph crystol, moisture-secled. The microphone is inconspicuous, and weighs only 1%
ounces. Respoese from 40 fo 6,000 «ps. High frequency resporae occentuoted for
maximem intelligibility. Free from usdesirable peoks. 134° diometer, Gray finish. Lope!
dip. 25-feot shielded single-conductor coble. Shipping weight 1 pound. Outpet levet
57 db. below 3 volt per aicobor.
Model 76B. Codet RULOP oo… ccc eee cece eee eeeeceeeeeeeeceesseee ss Lint Price $27.00
=== Page 9 ===
. “100” SERIES CARBON
* High-quality, carbon microphones specially designed for mobile equip-
‘7 – ment and oll other uses where ruggedness and dependobility are
Ma F vital foctors. Cleor, crisp voke response, High output. Easy to use,
‘ j fits seugly into palm of hand. Heovy duty switch for push-to-talk per-
@ ” formone. Fumished with hook for suspension and bracket for woll
Ps mounting, plus coiled cord cable. Adopted as stondard microphone by
fs |) leading manufocturers of communications transmitters. Output level:
¢ = 5 db. below | volt for 100 microbor speech signol, Net weight 14 oz.
i i. Shipping weight 1 pound. Cose dimensions: 334° hich, 1 deap,
– 2%” wide.
move | SWmTcH ARRANGEMENT | came | CODE | ust race |
NS — | Two Wire Relay Switdh neemoly | Colled Cord | _ ta
CO v sore open 11″ retrocted | RUCEG $20.00
4 (No escrophone switch. Y extended |
Coted Cord — |
1ozc Reloy rormaily opes. Micto- | 11″ retracted! BUCEM $30.00
mach i . | s
MODEL 100 SERIES Pn a a ee S ended
REPLACEMENT CHART REPLACEMENT PARTS
i — Model RIO Corbon Cortridge used in “CB”, “100”,
| Shute Dintriboree’s Mosel Now, | Shure Morwlachwer’s Madel Nox sy ond 120″ Series Carbon Microphones. Easy to install.
| nT | B10, C8108, C815, CBI SD, caI0c Model RIO Code: RUTUB Ust Price: $10.00
7 7 Ta’ PET Ba PRES =e Model CISC Coiled Cord with triewned ond tinned
| leas | Sth OAK: Culze leads. Used in “CB and “100” Series Microphones.
NOTE free ered al calle wiwened od sened for quch, #0ry Inetafetion of coneecter. Model: CISC Code: RUCOR List Price: $6.00
The Model “120” Carbon Microphone is the ideal general re-
placement corbon microphone in the mobite equipment field. It
can be wed os o direct replacement for Shure microphones used qi .
by the lecding communkation equipment manufacturers. It can ‘ —~ ;
be used cs a replacement in ony circuit requiring a Carbon SS
Microphone for fixed station use. The “120” is a durable unit ~*~ +
designed for high intelligibility of speech. It will stond up under iy ‘
extremely rough treatment and con be depended upon “to get < _ rel
the mossoge through.” It is recomended for Police, Fire, Utility, . * a ,
Forestry, Transportation Services, etc. The Model “120” is a dis-
tinctive looking uni thot will improve the oppearonce of ony
trensmitting setup. It is furnished with a S36A desk stond, push
button switch and 7’ four-conductor unshielded coble. Shipping
Weight 3 Ibs. ‘ .
NOTE Otrext replocoment tor wenatochrer’s model 91427. . A
| mooe | came RUT a St | cone | _ .
| 120 | 7f. |Sdbbelow!{ 701280 | Bibs | RUCEP $40.00 — _—
volt per 100 obers .
ies
=== Page 10 ===
~ This now ruggedly corstructed Grip-To-Talk, Slide-To-Lock Switch em-
\ ploys « long life, lecf-type switch element which is gucronteed to
withstand the most severe fleld requirements of paging and dispatching
> } systems. Has spring temper phosphor bronze switch blades with pure
silver contacts. Ideol for Police, Taxi-Cab, Railroad, Airport, Bus, Truck,
i and oll emergency commwmnications work where dependability is vital,
: } Lorge comfortable grip bor minimizes hand and finger fatigue—alo
ossures positive contect, Firm downwerd pressure on grip bar locks
switch. Con be used with Shure conmector type crystcl, dynamic and
1h
” to accommodate other switching combinations. Rich sctin chrome finish.
J Shipping Weight 1 Ib.
– : Model: ABBA Code: RUNEL List Pricer $10.75
MODEL A888 A
MICROPHONE ‘‘ON-OFF”’ SWITCHES
in mony microphone opplicctions a switch is mot wanted at the
mikrophone. Therefore switches are not built into Shure Micro- “
phones. But, whenever a switch is needed these “On-Off” switches J
plug into the microphone quickly ond conveniently. You can de-
pend on them. No soldering necessary.
Model AB3B. Rotary type “On-Off” switch. Quickly attached
to ony cable-connector type Shure Microphone. Internol plug
establishes connections. Bakelite arrow knob. ry
Code: RUNIM List Price $6.00
Mode! AB4B. Momentory “On-Off” Switch, Press-to-tolk =
Bokelite disc. .
Code: RUNID List Price $7.00
Model A85C, Momentary Reloy-Type Switch, Normally-open
switch closes circuit comprising one conductor and shield of out-
going cable for operation of relay or other device; remaining
conductor ond shield of cable carry microphone output. Must be y
used with two-conductor shielded cable. Stondard Shure cable- i 4
conmector receptode. Satin Chrome finish. Bckelite disc. 134″ of
high x 1%” wide x 2” deep. Furnished withoet cable. Shipping aes Asse
weight % pound,
Code RUNAT List Price $10.00
10
=== Page 11 ===
EN) MODERN DESK STAND TAKE-APART STAND
> Z, Model S36A. Streamlined Desk Model S34B. Hondy low-cost
ey) Mount with stoble support. Fits stond for desk or hand use. One
i A Shure
2 > Idec! for use einen Grip to releases handle for use in hand.
Talk Switch. Adopter provided Metal bose, wood handio. Metal
£ for other type microphones. Re- top threaded ‘8 —27. Height
. ; over all 6’li;”. Base diam. 414″.
= movable button for installation of Length of handle 5%’. Shpg
ES I) 34″ standard bushing switch or wt. 1 Ib. 7
= volume control, Pearl Gray Code RUKAB. List Price $2.50.
finish. Base: 244” high, 5” wide, Model A41B. Microphone
7” long. Shipping weight 14 pounds. Model S36A. Hondle. Threaded %4”—27.
Code: RUSEF. Ust Price $5.00 Code: RUJAD. List Price $1.00
CABLE TYPE TRANSFORMER
Model A86A is o high-quelity cable-type transformer which offers additional
versatility when ured in conjunction with Shure Models 55, 556, and 51 Dynamic
Microphones, which employ the impedance matching switch. It solves the frequent .
problem of installations requiring long lengths of microphone cables without .
the loss of high-frequency response. Model A8S6A matches 35 to 50 ond 150 o/
to 250 ohm microphones to high impedance amplifier input. Compact, sturdy. ,
Case diometer 144%, length 274″, 7 foot coble. Shipping weight 114 pounds.
Model AB6A. Code: RUDEB. List Price $15.25 MOOEL ASSA
|
|
FLOOR STANDS ; |
The new Shure Floor Stonds have been designed to look smart
ond work perfectly. They will fit into any type of instellction becouse
of their design and rh hommered finish. Stabilized base cushioning
reduces floor noise pickup by 10 to 18 db. Color: Pearl Gray.
noon | St aa Seat |soSRNag] WSE| cove | ae |
361 | Rownd | P¥ilbs,| 12″ | 44°68″ | 14 tks! RUST $19.50
| ws | 9% ti. | 17 | 46″—70″ tats| RUS $22.50
f ——EEE—Ee= — – ——$__—_ —
1
{ x Pictured at right is the new
Shure Locking Device thot
is compact and sturdy. Just
| push the betton to raise or
lower the microphone. Life-
tested 5000 times. This lock
— is precision mode, will stond
up under rough ond tumble
MOOEL S61 trectment. MODEL S65
– > :
=== Page 12 ===
BASIC CONSIDERATIONS IN MICROPHONE APPLICATIONS
Four Basic Types: A miccophcne is on ieatrument for horizontal plone. Microphones ore avollable with the follow:
converting sound energy into electrical energy. This is occom- ing nclar choroctoristics:
plished by Shure Brothers through four fundamental types of
microphoees dynamic, controled reluctonce, crystal, ond
carbon. Each employs a specific fundomental principle of 1. Nondivectional—picks up sound with equal
operotion. Obvicwsly the opplicotion determines the type of sensitivity from oll directions.
microphone to be used.
Carbon: fe the corbon microphoee the sound woves oct
vpos ¢ diaphragm ond vary the resistance in an electricol 2. Semidirectional (conventional type) — Proc
circuit, reproducing the sound os modulation of a current tically oondirectional at low frequencies,
flowing In the circuit, High output level and ruggedeess are betoming increasingly directional at higher
choracteristic of a carbon microphone, It is ols prectically froqovenies.
unaffected by heot and humidity. ts high outpet Is advon-
togeous wherever space ond weight are a foctor, due to
the fact that one or two preamplifier stoges moy be elin- fs
inated. The carbon microphone is widely used by eilitary _ 3. Bidirectional—picks wp sound from front
services, police, omatows, airline cad railroad componies for and rear. Dead at sides.
mobile commenications,
Crystal: In c crystc! microphone, the sound wave is made |
to stress @ plezcelectric crystal and is thes converted into o 4, Cardicid-—mirophone hos heart-shoped
voltoge focsimile of the scund. Crystol microphoses ore ; pickup pottern—seritive ct front, deod of
excellent general purpose microphones. They ore available rear, Rotio of front-to-reor sensitivity for
in specially designed models for communkations use os well sounds arrivieg of random, 7 to 1.
as standord models for public oddress and recording.
Controlled Reluctance: In the controlled reluctance 5. Super-Cardicid—improved cardicid pat-
microphone, the cutput vollege is induced in a coll of wire tern. Sensitive at froet, dead ot recor. Ratio
by causing a sound wove to modulate the reluctance of the of front-to-rear sensitivity for sounds arrive
magnetic circuit. ing ot random, 14 to 1,
Store Controlled Relectome Microphonws ore ovailoble in
various models. They ore ideal for recording; P. A. Systeres; . :
mobile communications work; dictating machines; mobile P.A. ne latter microphone selves mony problems in sound ond
Systems, depending upon the model. The Controlled Reluc- ps Nae. Se or OM cna Vener ection | BIC
ystems, depending upon
tance. Microphones ‘ore regged and: are’ fe to high Phones have o wide-angle respomse which diminishes sharply
— e to @ pronounced decd zone ot the reor. This choracteristic
temperature and hwnidity. ‘eoanecd
pecially helpful in stopping feedback, permitting the
Dynamic: In the dynomic microphones, the sound wore building up of greater volume, simplifying microphone ploce-
causes o coil of wire to move in a magnetic field, generating ment, allowing the performers to stond farther owey from
@ vollage proportional to the applied sound. the microphone, eliminating undesirable reverberction ood
Shere Dynamic tnt ore avolable in o variety of background noises.
models. Some are ideal for low cost communications work; .
others ore perfect for high quolity public address; and some esate llle diane diag nha neh ones
oe hove been espedally designed for high quolity or super-cardioid mkrophoce with one tronsducer unit, wide
‘osting. eagle front pikkep, and ao reduction in pickup of random
The dynamic microphones ore srolble in ke orth sound onorgy of 66% to 73%.
impedance, thws permitting the wie o! ig cable .
Sture Dynanic Microphones are very rugged and ore not Frequency Reshonses Praeiy ot reproduction ‘beets
affected eppredably by severe conditions of weather, lity Pubae Adar onda ain sone . nigh
humidity, and hardling. qe! O35, ‘osting on ording, it is
essentiol to have o microphone with o peak-free, extended
Polar Response Characteristic: The microphone frequency response. For speech work, it is deswable fo pro-
is the beort of a sound system. Hoving o good or bad vide a full and smooth high freqeency end in order to pro-
installation begins with the proper choice of the microphone. mote crispness ond intelligibility of speech, The higher priced
The greatest comideration should be given to the polar Shure microphones ore carefully engineered to provide a
response of the emit, more commenly known os the “pickup Ral, wide-range response. Even the lowest cost microphones
pottern.” Polor response characteristic describes the voria- ore designed to give peak-free performance with frequency
on of semitivity cx a function of the direction of arrival of range consistent with the price ond best sited to the appli-
sound. It is commaorty published os a function of angle in the cation for which the microphone is recommended,
SHURE BROTHERS, Inc.
Microphones and Acoustic Devices
225 West Huron Street, Chicago 10, Il © U.S.A. @ Cable Address: SHUREMICRO
Coptte | Mireptwes lemwed Seder Peter of bam Devetopecd Co Conrrig 1949 Shere rethen. Chtoros Pred. SA SOM ISP.SER.MWEe
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