BTA-1R1 AM Transmitter Restoration
(BTA-500R restoration to be detailed in a future page)
Everything in place!
power up ... no smoke.
oscillator and low level stages - note frequency; 1590khz
installed; mod xfr, hv xfr, hv choke, mod inductor (50h!)
Testing with BA-6A amplifier supplying audio
Minor addition to allow the use of a SO-239 RF connector
Final photos from rear side; top to bottom
Final testing with the GR Modulation Monitor and RCA BA-6A
for ease in connecting audio and modulation monitor
Ready to go!