Home › Forums › Design and Building › 2 Stroke Amplifier Design and Building › output tube changeout › Re: Re: output tube changeout

January 4, 2013 at 8:48 pm #5735
Andy
Keymaster

Hey Bill,

The book lists the ranges on page 195. These are all approximates:

OUTPUT TUBE
340-360VDC on pin3
300VDC on pin 4 (grid)

PREAMP TUBE
140-160VDC on pins 1 and 6 (plates)

RECTIFIER
320-330VDC on pins 4 and 6 in from transformer

I havent measured at A, B, and C, but the above is what you are shooting for.