[Collins] RE: 75A4: stage gain

[Laird Tom N]

>From the WC9M archives:

here is an older contribution from my archives:
Hope this helps,

Tom Laird WC9M
Moline, IL.

>Does anyone know what the stage gains (approx.) should be for the
>75A-4? I'm aligning mine at the moment, and would like to check
>that the gains are close.

It doesn't seem Collins disclosed the data. The following info is what
I picked up from an article on the 75A-4 , Ham Journal, Oct.92. The
author himself measured the stage gains on his 75A-4s with SSG and mV/VTVM.

antenna coil 10dB
V-2+RF coil  18dB
V-3+Variable IF 10dB
V-5+ mechanical filter 0dB
V-6+q-multi 20dB
V-8+IF 20dB
V-9+IF 20dB
V-10/11 10dB
V12 -8dB
V-13 30dB

JFYI Hiro AD4EC/VE3

-----Original Message-----
I am 20-30 DB short of gain on a earlier 75A-4 For the  first time I
need the stage  gain for almost every stage? ....from the grid of:
V9
V8
V7
V6
V5
V3
V2
Is it available somewhere?
like it is on any 51S1 book microvolts or DBM v/s AGC Threshold ?

Yves Wn4i