Jeff Tranter's Blog

I did further testing of the restored unit, measuring voltages against the manual, and they all looked okay. The unit was speced at op...

Initial powerup tests are good and indicate that it is producing output on all four bands. I powered is up slowly with a Variac and the...

The last stage of assembly is the wiring of the oscillator and bandswitch coils on the top of the chassis. Most of this is done with h...

I finished up the next set of assembly instructions  - the wiring around the final amplifier tube. The last toroid is another large one...

I completed the wiring of the oscillator stage. The two RF chokes were replaced with toroids. Once is larger, so I mounted it against the ch...

I finished up the first section of wiring assembly - the power supply. I inserted the 5U4G tube, temporarily hooked it up to power,...

Finally the tube sockets arrived, so I could get started with the actual assembly. The new sockets were a little smaller than the ...

I decided to start a restoration project on this Heathkit AT-1 transmitter. This was Heathkit's first amateur radio kit, and was quit...

The Pixie transceiver is a simple QRP amateur radio transmitter design. I earlier blogged about  and made a YouTube video  covering QRPME.co...

I finished "recapping", i.e. replacing the paper capacitors in the Heathkit RX-1. Some were a little tricky to get at when the uni...