Using zeners in a situation that doesn't allow them to perform in a predictable way isn't the best anyways.
The zeners are isolated from the changing current, and only change a couple volts from cold to warmup.
In a situation like this where they are used as a reference voltage they work fantastic.
If you wanted to use them as a direct shunt a string of lower voltage ones like in Morgan Jones's Statistical regulator would be a better choice than higher voltage ones, as the temperature coefficient is a bit better for changing current.
reference voltage is the way to go in high current situations.
They would drop right in for gas regs in most classic designs that use them as a reference rather than a shunt.
is simply not good enough in a DC coupled amp.changing a couple of volts from cold to warmup.
So… 6VHeater, not to detract from your awful experience, hen all kinds of shît happens that we mostly wouldn't want … except possibly for high-distortion electric guitar amps.
Really? I always had thought that the “rectifier symbol” was to memorialize that electrons would “follow the arrow”, and “hit a blockage” in that pointed-to direction. Electrons, being negative, being unable to make it past the blockage would 'go the other way'. Thus the pointed-to end of the symbol would become 'positive' relative to the AC on the other side.
I am expecting mV of ripple with DC coupled cathode followers, which is why that amp is triple regulated, and NO..you are wrong, it's not a guitar amp with loads of distortion as you gleefully like to hint...
I do like gas regs, and do use them. I really like the 0D3 and really like the stability, but don't always wish to throw that much current through a reference,
and they don't carry enough to work in all instances, such as a screen voltage shunt regulator for a big sweep tube output stage.