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RE: sure... :)

We are hunting for a current setting resistor, yes? Whilst the 3545 is running beneath a 10M45, right?

So...draw a vertical line at 3V.

Then join me in the guess that we want about 1.7V for operation at 20-30 mA.

Apply Ohm's Law to determine the resistance required to deliver 1.7V at this idle current. Unless you wish to run 50 mA...in which case, note there is a gate line at that current( the -1.5V lowest one ).

Since the 1.7 is a guess/interpolation be prepared to adjust this value a bit. I suggest some battery bias to bring the effective bias voltage up to ~12 so most of the resistance is dedicated to covering the battery's extra voltage.

Douglas
Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.

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  • RE: sure... :) - PakProtector 01:40:18 04/25/24 (1)
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