04-25-2015, 01:56 PM
It's hard to resist playing a new acquisition before doing a recap, but one again you are playing with fire if you do. Replace all electroytics, paper caps, out of spec resistors and flaking rubber wire, do an alignment, and most of your problems with a radio will disappear, most of the time. And you'll know it's safe.
With resistors, you ought to test them with one end disconnected. There is a shortcut that some people use. Since most resistors fail high, if your resistor tests low because of effects of other components in the circuit, the resistor is probably good. If it reads high in the circuit, it's probably bad, so it should be replaced.
I give a resistor 10% before replacing. A lot of guys say replace if more than 20% out of spec. These radios are pretty tolerant of out of spec parts, but definitely replace if over 20%. And replace electrolytic and paper caps no matter what.
With resistors, you ought to test them with one end disconnected. There is a shortcut that some people use. Since most resistors fail high, if your resistor tests low because of effects of other components in the circuit, the resistor is probably good. If it reads high in the circuit, it's probably bad, so it should be replaced.
I give a resistor 10% before replacing. A lot of guys say replace if more than 20% out of spec. These radios are pretty tolerant of out of spec parts, but definitely replace if over 20%. And replace electrolytic and paper caps no matter what.
John Honeycutt
