Quote:
Originally Posted by Electronic M
That resistor is probably for current limiting the selenium rect. Resistance is not critical ( wattage will be though) and may be increased to compensate for the reduced voltage drop across the diode that you're presumaby replacing the selenium with.
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You'd be correct in assuming that, is it just trial and error to see what gets the proper voltages? I had heard that each plate on the selenium drops somewhere between 1 and 2 volts. Is that a good ballpark?
Also, the 4.7ohm resistor was before the selenium, could the value be added to the resistor or would it have to be placed after the new diode?