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So I bought an old uniden has a knob on the back to control variable power. Inside was a piece of round plastic with 4 wires going on to it so I warmed it up and started slowly removing layer after layer it appears to be 5 diodes in a series. With 2 wires hooked to each end. Anyone seen a mod...

So I have owned 8 tube type amps in 20 years. I have never used one. Mainly due to lack of knowledge and experience. I have this Palomar I know nothing about. It does have tubes in it. Capacitors all look new. I have not plugged it in yet. I never plug anything in without thoroughly looking...

Recently a friend of mine gave me one of these $25 dual band radios. Haven't really messed with it much. I saw a secret menu people were unlocking. Mine will not do it and I noticed mine doesn't look exactly like any of the one I saw. So I am assuming that function was taken away?

While digging through boxes of old radios looking for parts, I ran across this one. I Don't know where it came from. Powers up but no transmit or receive. Thoughts???

Over the past year and a half I have had to move out and move back in to my radio room. Somehow I misplaced the power cord to my meter. Does anyone know what voltage? Thanks in advance.

Recently acquired this radio. Worked for a very short time then I went to power it up one day and had nothing. I did find some burnt components. TR52 R243 C193 to name a few. Can someone point me in the right direction to figure out what caused this. Thanks