[Amps] AL-1500 and bias control with an external QSK

[Gary Smith]

Hi,

Has anyone with the AL-1500/AL1200 used an external QSK with it and 
knows which line to work with to turn on/off biasing with the QSK 
unit?

>From the QSK Master FAQ:
http://www.arraysolutions.com/Products/qsk_faq.htm#top of page

reading from the line: Q:  Can you give me some specific details on 
how to actually modify my amplifier for bias switching?...

It gives some direction as to what to do but if there's someone here 
who has done this, I'd appreciate knowing which line it is in this 
amp and what was done to make it work.

I did purchase the Ameritron Bias board and installed it yesterday. 
it seems to work acceptably well in the amps CW position giving about 
50 mils resting plate current but when I switch to the SSB position 
it jumps to around 180 mils resting plate current and is no better 
that it was without be board. Seems like my best choice is to let the 
remote QSK initiate the bias switching as it suggests above.

Thanks.

73,

Gary
KA1J