Home › Forums › Design and Building › Effects Design and Construction › Add Pentode/Triode switch to two stroke › Re: Re: Add Pentode/Triode switch to two stroke

January 29, 2013 at 10:39 pm #5776
Andy
Keymaster

What is your reasoning behind the Pentode/Triode switch? Typically this is done to cut the power in about 1/2. It does change the tone a bit, maybe thats what you are after?

If you did as you were describing, you probably want to put a couple resistors in. I would have a 1.5K 1W resistor on pin 4, then a 1M resistor, in parallel with the switch lug (see crappy drawing). Then the other lug like you described.

You would be be fine to put standby here, thats what I do on our Renovo amps. Very similar to what you described. We use an On-OFF-ON NKK switch so standby breaks the connection to the Output Transformer and the Power line has to go through the 1M resistor.

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