A home-brew crystal controlled 80m AM transmitter. Xtal osc 6C4, RF driver CV138,
RF PA 6146, Mic amp ½ ECC83, AF amp CV136, AF output (Modulator) 2 x 6L6, stabilizer
150A2, cal sine wave osc ECC82. Up to 20W carrier, 40W peak. Mains power supply
with separately smoothed RF and AF HTs. It is hoped the PSU unit may be replaced
by a portable dyna-motor unit providing 350V HT 150mA.