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At least the shipping is free, that makes it worthwhile... ;)

Looking at the schematic it looks like a silicon diode large enough for the current demand is all you need. To be safe I'd use a 6 amp, 200V diode.

I'm boiling water so the paint dries slower..

200 amps

It's approximately equivalent to a MRF-454.

@Handy Andy That pad isn't ground, it's the junction of R228, R194 and D63

To remove broken cores, de-solder the transformer from the board and run the core out from the bottom end. The hole and the threads go all the way through. Usually the screwdriver slot on the bottom of the core will still be intact allowing you to furn the core. If you replace the core with one...

Is this the first time you have checked this 148GTL test point with this counter? If not, it could also be the counter's input isn't sensitive enough for the signal you are checking. This scenario can cause the counter to not quite "lock" onto the frequency. I always try another counter before I...

The DX-300 and KW-one are also notorious for having the negative bias for the control grid dropping out from the calibration potentiometer failing due to oxidization.(scratchy) When this happens the tube is full on even with no drive and won't last long. The negative bias is the FIRST thing that...

Might want to take the wirewound resistors off of the splitter/combiner and feedback and replace them with metal film. Inductive resistors here are a no-no. It is still class C.

I've always thought is was a dumb idea for Davemade/X-Force/Fatboy/Etc. to cut the flange hole in the PC board so close to the flange size. Even a 1/16th of an inch larger wouldn't have hurt anything and would have made installing/replacing transistors a lot easier. We also wouldn't need to have...

The MRF 477 itself could have reverse leakage, seen it many times. Lift one end of R158, the 82 ohm to the left of VR112. This will cut the bias voltage if there is any. If you still see the 15ma then you know the final has a leaky CE junction and needs to be replaced.

http://stores.goldeneagleradios.com/crystal-11-2842/

It might be the 11MHZ crystal for lower side. Up by the PLL there are 3 crystals side by side. (X3, X4 and X6) X3 is upper side, X4 is lower side and X6 is AM. They should be in sockets. Try swapping X3 and X4 and see if lower side works and upper side quits. If so, you know the 11.2842 crystal...

Yes, on a 2510, B+ is on the driver and final even when the radio is off.

It's fun to smoke marijuana.. https://jeffmilner.com/backmasking/another-one-bites-the-dust-backwards.html

The film on the bottom of a magnet mount is foil or metalized polyester/mylar and is there to form a capacitive ground for the antenna. If is only torn in the middle and not too big of a hole, it probably won't affect it much.

A 1K tone or all of the science and technical jargon in the world, won't matter if you don't keep the string tight..

The mic with the receive volume control.

Shockwave: The HAARP is used/can be used in conjunction with another patent/patents. Artificial ionospheric mirrors: https://patents.google.com/patent/US5041834A/en https://patents.google.com/patent/US5038664A/en https://www.freepatentsonline.com/5041834.html Check out some of the nomenclature...