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These parts are from a long-lost project about making a pile of discrete op-amps, and the power supplies, making mike preamps etc. and all is up for sale.
I have some info on the power supply, from JLM AUDIO
There is a schematic/info on the power supply
I have a few notes on the D-amp, correct transistors etc.
These D-amps use PNP outputs and could run on +-24V. I have to look for the files as a couple HD blow outs could have trashed the info
The running D-amp was very quiet and could drive down very low
There are a couple un-built boards, and there is a pile of un-built boards somewhere in my mess.
There is one D-amp on a board, runs perfect, gain switch, had a input transformer etc. that is wired to the board.
The power supply uses a 48V ac transformer to get +- 24V rails and +48volts for phantom, which is a separate regulator section.
All for $30 plus shipping costs
These parts are from a long-lost project about making a pile of discrete op-amps, and the power supplies, making mike preamps etc. and all is up for sale.
I have some info on the power supply, from JLM AUDIO
There is a schematic/info on the power supply
I have a few notes on the D-amp, correct transistors etc.
These D-amps use PNP outputs and could run on +-24V. I have to look for the files as a couple HD blow outs could have trashed the info
The running D-amp was very quiet and could drive down very low
There are a couple un-built boards, and there is a pile of un-built boards somewhere in my mess.
There is one D-amp on a board, runs perfect, gain switch, had a input transformer etc. that is wired to the board.
The power supply uses a 48V ac transformer to get +- 24V rails and +48volts for phantom, which is a separate regulator section.
All for $30 plus shipping costs
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