Tube DIY Asylum

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And a question...

Posted by Triode_Kingdom on July 6, 2017 at 17:31:22:
Early on in this project, I was considering a timed relay at the output to prevent thumping the power amp. Then I moved to the DC coupled output design, and now I'm wondering if a delay is necessary. In this design, applying power before the output stage is warm creates a negative output voltage. Into an open circuit, -30V will be present (although no more than 13 mA can flow due to the resistance of the choke). Driving a tube amplifier with this, I don't foresee a problem. Even without a coupling cap at the input, the worst that can happen is to put the input stage into cutoff. I'm wondering though, are there SS amps that might be damaged or adversely affected by this? It's been so long since I've worked with SS amps, I just don't remember all the various iterations.