Quote:
Originally Posted by old_coot88
Sorry, I shoulda been more specific. 'Ground end' simply means the lowest potential or no-signal end. In this case, there's a 40 ohm resistor (R22) from there to chassis ground. See if there's 40 ohms from the low end lug of the control to chassis.
(R22 may be physically distant from the control since it's part of the negative bias supply circuit.)
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The Candohm is still good, it measures a little high but still within tolerance, I'm getting about 53 Ohms there at the 40 Ohm section and about 215 Ohms at the 200 ohm section.
I have some pictures of the radio underside showing the capacitors I changed, there was one little spot that looked like it could of been from a component that was cut out at some point in time but there wasn't anything near by that matched it so I chalked it up to maybe a sloppy part placement job from the factory.
See pictures below.
And yes there's 53 Ohms on the low side of the volume control pot to the chassis, so that means that the negative side of the volume control pot is fine it seems.