EF Johnson Valiant Ham radio tube transmitter UN-mod & repair Lots of Kobbling many hours of work скачать в хорошем качестве

EF Johnson Valiant Ham radio tube transmitter UN-mod & repair Lots of Kobbling many hours of work

Another Valiant hits the bench of D-Lab. This one suffered at the hand of a Kobbler. Lucky for this Valiant, it was a factory built unit, or I may have decided the return to stock wasn't worth the time & effort. The radio had problems in every area, RF, Audio, VFO, Power supply, you name it. Most of the problems were introduced by an experimenter. When I run across this, I grab a set of wire cutters, carve out the mess, start over per the print. After 10 hours on the bench, it is working again. I never make any money on these transmitters, since estimations always get blown out of the water with hidden faults. These days, people are realizing the value of these radios and are willing to pay more than in the past. Like all of this vintage equipment, they are slowly disappearing, so are the people willing to work on them.