ADM 1922 2Ch Discrete 4 Transistor Output Mic Preamp card Transformers IN&OUT

This listing is for one 1922 card there are more listed. ADM 1922 card has a 5534 buffer into a 4 transistor output section driving a custom ADM output transformer with input and output transformers.
There are 3 resistors on the board that need to be shorted out if using for a mic preamp.
The 3 resistors make a pad so that the card has only 15db of gain as is. Remove and jumper out the resistors +55db gain

Mic preamp with input and output transformers for parts and restoration DIY no returns
Requires knowledge and other parts to make operational .
I will email a schematic with purchase.

ADM consoles ran on +/- 20V rails not +/-18V
+/-18 will work with reduced headroom.
I will not take returns as I have had customers hook up the +/- 20V backwards and fry the board.

The 1922 and 1268/2668 are pin compatible .

This item is listed in multiple sites as well as locally .
There is a slight chance that it may sell before I can remove the item form this site.
I reserve the right to cancel the listing at any time. The item can be tested here at the shop when you pick it up. Operational but being sold as is no returns .If you are not buying it locally but having it shipped I will supply a link to a video showing the unit working.
After it leaves my shop it is as is no returns.
Thanks

Transformer balanced in and out.

 Gain control adjust the gain of the amplifier from 20db to 60db of gain.
 

See my other listings for ADM 1668 cards. DIY