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In this video I have a look at multiple problems with the Eico 315 signal generator. Then replace capacitors, resistors and do an alignment.

Thanks BBB for the video link. 2FB327 You can use an RF probe or scope in either case. RF Probe connected to volt meter in AC mode 1.5 volt scale. I prefer an analog meter to do this because it is much easier to see the needle move over a digital display. On the Cobra 25 key mic and...

Thanks for the kind words.

Thanks. So much to do. Hard to keep up

#65 Shop Talk Sniffing RF signals safely In this video we show a simple way to sniff out RF signal safely and to correct a simple but dangerous task I performed in my last video.

Yep, it is a little bear to get to. These relays were very high quality back in the 60's. They are even rebuild then by changing out any of the parts, coil, a single contact ect. Most relays of this time were not sealed. I find they can still work with in spec today.

#64 Collins KWM 1 Repair In this video we take a look at a transmit problem with a KWM-1 amateur radio transceiver.

Well it is a start. But the data displayed does not really tell you a lot, in theory, I agree with CK you have no trigger, If you really want to get fancy build the circuit I posted above. With it you can look at the rf carrier and demodulated audio imposed on one another. What you are seeing on...

I had the opportunity to work on a Collins KWM-2A this week end. Did not have4 time to do the repair on camera due to getting the radio back to the owner. Rig came in with a broken power port. While testing the unit I found several bad solder joints and repaired those as well. #63 A look at a...

#61 Yaesu FT101 series Part 2 Few nuggets and on air listen In this video we take a look at a few issues in the 10 dollar 101 before we get into a complete repair. This way we know better where we stand at and can now plan our attack.

#59 Yaesu FT-101 Series Part 1 Preliminary Test In this video we look at the 10 dollar flea market Yaesu FT-101. I installed the missing boards and components and we give the radio a over look to see where it is electrically. Inside we find the Mylar capacitors on the audio board have heavy...

#58 Flea Market find Yaesu FT-101 repair series In this video we have a look at a 101 purchased from a local flea market Click here for full 33MB service manual http://www.foxtango.org/Manuals/FT-101_SVC_Manual.pdf Foxtango http://foxtango.org/

Mike is a great tech and does very nice work. Plus his videos are to the point with out the drama of some others.

Ok, that makes sense then. You did not say in the beginning post so can only make suggestions. I also take it that there is low receive on every mod of 6 meters? I agree about the service manual. Everyone I have seen is a scanned copy and they are horrible. The best way to troubleshoot is to...

That is the last thing you need to look for. If the radio was working and then quit, there is a failure from a component or a mechanical connection. The DX70 is know for bad solder joints and this is where you need to focus your attention. Also note a bad solder joint can lead to component...

Understood Robb. The serial on the one melted is an old unit that stayed plugged in 24/7. When the unit is off it still heats the crystals so they are always stable. Think has been plugged in just about it's entire life. From the 70's. my other unit shows no signs of melting. Just as old but I...

That could be done with a little work. Would be a lot more stable. Pretty good idea. Could also rip out a non working PLL and ass a atmel and DDS vfo. Lots of mods could be done.

In this video I fabricate a new crystal oven cover for my old B&K 2040. We do this with a modified Soldering iron tip. Check out Paul's video at Mr Carlson's Lab:

Great, he will have fun. But please but safety first. I see too many kids hurt on these things. Back in the 90's that was my kart racing site. I raced the world karting association sanctioned tracks. Was also the local track tech man. I won 3 championships during my career. It was fun. Ran...

Thank you, It is all about helping the fellow hobbyist out.