BA on +/- 24V

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Holger
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BA on +/- 24V

Post by Holger »

Is it possible to run a BA on +/- 24V just as a gain stage with input transformer and DOA ? I don't have 48V in the box I'm currently working on.

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Joe Malone
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Re: BA on +/- 24V

Post by Joe Malone »

Holger wrote:Is it possible to run a BA on +/- 24V just as a gain stage with input transformer and DOA ? I don't have 48V in the box I'm currently working on.
Yes wire +/-24v to BA PCB +V = +24v and BA PCB 0v = -24v. Wire opamp pin marked 1/2V to +/-24v supply 0v.
Do not fit the 10k resistor beside the Rload resistor and the 220k and 10k beside it. This will allow the gain and +/-out to be referenced to the new 0v of the +/-24v.
The ground plane on the BA PCB will now be at -24v. Short out the 10R resistor. Done

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Holger
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Location: Hamburg, Germany
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Re: BA on +/- 24V

Post by Holger »

I don't know why it works but it works :D
Thanks.

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