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Power Amp using preamp tube
#2
Hi Guys

Ideally, you use the plate curve of the tube you wish to use and go from there to decide on OT primary impedance.

Yes, you can use a reverb driver transformer and have a low-watt PA. It may be limited to 100mW or so, which is enough to make some sound through an efficient speaker.

The 125-series OTs come with a sheet giving 90 matches of load to reflected primary impedance. Start high and see what works.

Have fun
Kevin
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Messages In This Thread
Power Amp using preamp tube - by Strelok - 01-17-2025, 07:58 AM
RE: Power Amp using preamp tube - by K O'Connor - 01-17-2025, 02:26 PM
RE: Power Amp using preamp tube - by Strelok - 01-21-2025, 10:55 AM
RE: Power Amp using preamp tube - by K O'Connor - 01-21-2025, 05:26 PM
RE: Power Amp using preamp tube - by Strelok - 01-23-2025, 10:34 AM

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