Valve PSUs
In rec.radio.amateur.homebrew Rambo wrote:
On Tue, 27 Jan 2015 14:49:49 +0000 (UTC), Custos Custodum
wrote:
"gareth" wrote in
:
The problems associated with replacing (or even obtaining) the HT
reservoir capacitors in valve projects might be replace with a series
/ parallel arrangement of those dinky 100uF 35V SMD ones?
There's still a significant market for valve-based guitar amplifiers, so
somebody must be making the HT capacitors for them.
Probably could be rolled up and placed inside the original aluminium
can, too!
Don't forget to include a suitable voltage divider chain.
Whats wrong with a 450volt rated cap?
Nothing; he is starting out with the false premise that high voltage
capacitors are difficult to obtain, which they are not.
--
Jim Pennino
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