[Harp-L] LETHAL VOLTAGES was: Low plate voltage on the preamp tubes?



I failed to emphasize the risk sufficiently.
Fender 6L6 amps have around 650 AC between the secondary windings of the power transformer
450V down to about 250 V DC in the power supply to the plates.
Touch the wrong spot at the wrong time and you could be killed.


Jim



On May 16, 2006, at 9:01 PM, harp-l-request@xxxxxxxxxx wrote:

	
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Jim R wrote:
<I agree that reducing the plate voltage of Fender and similar amps
<warms up the sound and makes it less stiff and gainy.  I have been
<happiest with 12AX7 voltages of 100 to 110V.   It is not hard to do,
<but involves dealing with a portion of the circuit that has REAL HIGH
<voltage.

Novice techies should read that last sentence as follows:
"It is not hard to do, but involves dealing with a portion of the circuit that has REAL HIGH
voltage AND CAN EASILY KILL YOU IF YOU DON'T KNOW WHAT YOU'RE DOING."


Thanks and regards,
Richard Hunter
hunterharp.com






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