ALPHA 78 MOD FOR 12 METER BAND

12m mod
Add 25pf / 5kv doorknob capacitor to third bandswitch wafer
for 12m tuning (this value may need to be slightly
different for some amps).
Add jumper to second wafer to connect 10m capacitor
to 12m and new 10m position.

Change plate choke to RFC-3 from RF Parts.

Remove clockwise stopscrew from bandswitch and install new
screw one position farther CW.

The amplifier should NOT be used on 30m (10 MHz) after installing this modification!

12m mod

12m mod

12m mod

12m mod

12m mod

12m mod


Last Updated on 06-JUN-02
By ALPHA/POWER

Back to WARC Band Info