• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Aikido Preamp

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Bengali said:
what's the equation for calculating the choke value?
if the tubes total current draw is 1.2A and uses 6.3v?

thx.

If you mean for the heaters, don't even think about using a choke for that...the cost of a choke that can deal with that kind of current would be outrageous.

Personally, I use the 6.3V AC tap directly on my heaters. Works perfectly fine. I see no need to feed an Aikido with DC heaters.
 
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