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previous: Morris All the old EL84 amps use 100-ohm s... -- 1/6/2001 5:55 AM	View Thread

Re: One more question

1/6/2001 6:30 AM
Ken Gilbert	Re: One more question mo, there's nothing magic about 100r. think about it this way.. screen current is 1/5th to 1/10th of plate current... so what are we talking here--maybe 1-5mA? across a 100r resistor, that's 0.1 to 0.5v difference. 1k will be 10 times that, or 1 to 5 volts. still less difference than your average power supply fluctuations due to poor line regulation! i don't think you could hear it--i can't. kg

1/6/2001 6:30 AM

Ken Gilbert

Re: One more question

mo,

there's nothing magic about 100r. think about it this way.. screen current is 1/5th to 1/10th of plate current... so what are we talking here--maybe 1-5mA? across a 100r resistor, that's 0.1 to 0.5v difference. 1k will be 10 times that, or 1 to 5 volts. still less difference than your average power supply fluctuations due to poor line regulation! i don't think you could hear it--i can't.

kg