Western electric 99 a schematic
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Page 1
42mm Hectfic Company
No.99-A AMPLIFIER
COMMEROAL PRODUCTS No 1-6
APPARATUS REFERENCE SHEET AMPLIFIER
991A
l-18-39
ELSEIBIEAL_QHABAQIEBIEIIQE
WITH 14A REUTIFIER
Gain ------------ 29 db.
Operates From ------- 125 Ohm:
Internal Input Impedance - - High
Opratee Into ------- 32, 125, 280 and 500 ohms
Internal Output Impedance - /5 of Corresponding Load Inpedeno.
Output Power --------- I40 Watts Less than 2$ of 3rd
Harmonic
Output Noise -------- ~22 db Unweighted
Supply -------- us 50m. flitff%iiv§f1;§§§i.;:§.im§§§
Gain Control -------- None
NOTE A 1% Rectifier must be used with this
amplifier to furnish plate power.
I
Am lifier >
fi'¥77_77
nu Amvnu 'r
Rectifier ~
Rear V1 ew
EQUIPMENT CHARACTERISTICS
99A AMP. 14A RECT.
WEIGHT - - - - 105 lbs. 105 lbs.
SIZE - - - 19-1/8" x 12-1/4" x 14-1/2" 19-1/8" x 12-1/4" x 12-15/16"
MOUNTING - - - Designed to mount in closed type relay
rec: such as 102 type rack.
-79;