1950s era HF transmitter. Complete drawer was about a hundred pounds. Just disassembling the beast to replace a tube required several hours, and involved hundreds of screws, washers, gears, and a fair bit of desoldering components. Tubes lasted about 6 months, and we had two sets of transmitters.
1950s era HF transmitter. Complete drawer was about a hundred pounds. Just disassembling the beast to replace a tube required several hours, and involved hundreds of screws, washers, gears, and a fair bit of desoldering components. Tubes lasted about 6 months, and we had two sets of transmitters.