Simple yet decent transformer + IC preamp?

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Sammas

Well-known member
Joined
Sep 30, 2004
Messages
547
Location
Sydney, Australia.
I have a stash of 200k:20k mic transformers and was thinking of knocking together a simple pack of 4 preamps using IC's.

Any come across a suitable schematic?
 
Should be a few designs of transformer to transistors to I.c. , minimal parts
some tridents I believe & allot of less famous designs

try the Jensen application notes
 
The Trident 80B used 38k secondaries, but the schematic can be easily modified for whatever impedance you need. I have a spice simulation of the pre amp that I've modified for constant impedance and added the bus push pull output to drive an output transformer. I have a stash of transformers that I've been meaning to hack up with the schematic but just don't have the means to do it yet. I could post the sim if you're interested.
 
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