Replacement tubes
Looking through my collection I came across these two NOS US Navy tubes. Says tested OK 2-2-1947. Do you think they are still good?
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Relay problem solved
Relay problem solved. I learned a few things about AC powered relays. You can't bring them up on a variac slowly or they will chatter between 50 and 100 volts. They need to be operated at their full voltage, over 110 volts. It turns out that when using the dim bulb in line with the variac, the voltage drop was too much, and the relay dropped below its cutoff voltage and started to chatter. With 115 volts AC across the contacts, you get to see some sparks (not good). I turned off the dim bulb, set the variac at 120 volts and flipped the switch! The transmitter powered up and started drawing about 1.2 amps. No smoke or explosions :)
Power into the dummy load
I was able to tune it up into the dummy load on 40 meters. I could hear it on my local receiver. Finally progress. I'll probably button it back up and make everything safe now.
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