Question for Paul Speltz on Tweak #6

OTL Asylum

OTL, Output Transformerless Amplifier User Group.

Paul, If you are back, I hope you had a nice vacation or business trip. While you were gone, Mark posted your latest tweak on removing zeners from the input stage. I wondered why you used a 100uF capacitor to bypass the lower 100K resistor in the voltage divider network for the grid of V2. By my calculations, the impedance is set by the parallel combination of the 100K resistor with the 499K resistor above it, so equals about 80K. So, it seems you only need about 1.2uF to shunt all AC above ~1Hz to ground. Why choose such overkill on the cap value and have to use an electrolytic to get it?

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Topic - Question for Paul Speltz on Tweak #6 - Lew 07:06:21 05/02/02 (3)

Re: Question for Paul Speltz on Tweak #6 - Paul Speltz 10:53:44 05/02/02 (2)

Re: Question for Paul Speltz on Tweak #6 - Paul Speltz 11:04:30 05/02/02 (1)

Yes, I see that... - Lew 08:43:38 05/03/02 (0)

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