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Single Ended Triodes (SETs), the ultimate tube lovers dream.

RE: Budget speakers to pair with SET amp

OK. Here it is. I've talked this amp up. Now it's time for the big reveal.

I've posted a video about the amp and what's inside, here -> https://youtu.be/ikAjMVTd5b4

Inside, the amp is about what I expected; complex but elegant. This is definitely not the 15-20 component-per-channel SET amp that I see in schematics online. This amp is more sophisticated.

Two mysteries were solved. The output transformers are 8 Ohm and the driver tubes are pentodes that are configured as triodes.

New mysteries have been discovered. Why were dual triode tubes used in the first gain stage? They aren't wired in parallel or push-pull configuration. What are the devices on the heat sinks? Maybe linear regs?

More sleuthing is required, but at least I can be certain of the output impedance now.


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  • RE: Budget speakers to pair with SET amp - Whats-a-vacuum-toob? 16:21:31 09/20/21 (0)

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