[Amps] Ameritron AL82 @ 17 meters

Timo Pohjola Timo Pohjola" <oh1mdr@saunalahti.fi
Mon, 13 May 2002 20:34:23 -0000


Thanks Tom for a very good hint!

I made new coils (2 upper of the three coils) for the choke, I tried to make it similar as the original as much as possible.

I don't have a grid dipper so I used the "bulb" method for checking the resonance points.

I found 2 resonance points, 12.530MHz and 18.980MHz. The latter is not very far away from 17 meters band. I think it is well possible the spurious resonance was the reason for the failure.

I recommend this test for all AL82 owners before tuning the amp on 17 meters.

73 Timo OH1MDR