Apogee mini dac or Benchmark DAC1
There is precious litle 'modern' about any valve circuit. I learnt on
them btw.
I've no doubt you know valves from ( ?50s, 60s?, 70s?), but you'd be
very surprised at how much things have changed. Not the function of the
triode itself, which is well known, but the support circuitry is now
quite complex - cascode active loads, constant current sinks etc. - a
whole cuisine of modern ss devices and traditional stuff like glow
tubes. It really is "nouvelle cuisine" if you pardon the expression.
We're not talking Mullard circuits with EF86s and ECC83s any more.
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