[AMRadio] BTA 1 CONVERSION TO 80M

ROY FRISBY frisbysigns at sbcglobal.net
Sun Aug 26 13:44:08 EDT 2012


Hi Ed, 
 I have a BTA1R1 converted to 40/80/160.  I simply removed the complete output network and replaced it with a pi-network.  
The plate tuning cap is a 0-300 pf vacuum cap and the loading cap is a broadcast receiver type ganged to give 2000 pf.  For the inductor I used a large roler inductor.  The exciter is fed directly to the grids of the 4-400's via a blocking capacitor.  Hope this helps. I will be looking to hear yours on the air.  Roy, KB5MD


More information about the AMRadio mailing list