Re: Death by tube amplifier


"David R Brooks" <davebXXX@xxxxxxxxxxxx> wrote in message
news:465b1f70$0$18002$5a62ac22@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Iain Churches wrote:

On of the most best gizmos that one can incorporate into a homebrew
amp is a power relay with its coil across the primary of the mains
transformer.
As soon as the power switch is off, the relay drops out, and a pair of
contacts
close to discharge the main reservoir cap through a high-wattage
10k resistor. By the time you have switched the amp off and removed the
cover,

Across the transformer (primary or secondary), it won't do much.
It wants downstream of the rectifiers, ie across the main HT caps.

Hi David. The *coil* is across the mains transformer primary. The
NC *contacts* close to put a high wattage 10K resistor across
the reservoir cap, just as I wrote above.

Regards
Iain



.

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