[bitrex]

On 12/28/2018 03:45 AM, wrote:
On Thu, 27 Dec 2018 21:11:35 -0600, wrote:

I'm not intending on building this, but it's interesting and makes me
wonder if someone could use EIGHT 6L6 tubes, or TEN?
(Of course adding more tubes mean bigger audio output transformers and
heftier power supplies.

Tubes may age at different rates, so the characteristics might be
quite different after a long time. It might not make sense to replace
a single (failed) tube and you may have to replace the whole set of
tubes with new tubes preferably from the same manufacturing batch.
This can be quite expensive :-)



All amps of that scale should have active protection
circuitry/monitoring of currents, biases, and temperatures via
microprocessor to avoid potentially catastrophic faults.

Not putting that into an amp with the kind of non-inconsiderable expense
one will sink into building it on the grounds of "purism" or whatever is
mad, the kind of irresponsible behavior that the less well-heeled of the
world get called out on. Work hard. Save money. Don't burn up 2 grand of
parts/risk your life cuz one thinks silicon is too new-fangled.