09-19-2018, 07:59 PM
(The schematic is in PDF format)
This is a "simple" little 6 tube AM only radio, manufactured by Warwick under the Troubador (not a misspelling) logo. One tube above an AA5. It was a simple straightforward recap. All were replaced except the 3 or 4 micas. Resistors all checked good. Tubes checked good (swapped out with known good ones to be sure).
The audio output section is working loud and clear. Volume is controllable. Loud buzz when touching center tap of control. Traced through the schematic and everything checks out, yet I cannot receive any stations. I get the normal OSC sound as you tune through the dial (louder on the low end of the dial than on the high end), but only at full volume. Did a simple check plate to grid on all tubes and got a buzz through each tube so the signal is going through yet the set doesn't receive.
The schematic is pretty basic. No voltages listed so not exactly sure what they "should" be.
Any thoughts on what could be amiss causing the set not to receive? Terry?
I am only getting a small reading ( .3 or .4 ohms) across the OSC coil, yet when I temporarily clipped in one of the AES universal replacement OSC coils, it made no difference. Tried a new RF coil as well with no change.
Sometimes the simplest of radios can kick your behind the hardest. This is one of them for me!
Greg V.
West Bend, WI
Member WARCI.org