[TenTec] Bias Adjustment on Century 21
n0jmy at hayseedhamfest.com
Sat Jun 20 07:09:21 PDT 2009
Thanks, Perry. Everything works just as you said.
w8au at sssnet.com wrote:
> At 01:36 PM 6/16/2009, w8au at sssnet.com wrote:
>> At 12:45 PM 6/16/2009, Tom, N0JMY wrote:
>>>> My question is basically where/how (in physical terms) do you measure
>>>> this current? The final amp is a sealed unit for all practical
>> The 12V buss enters the PA section through a feed-thru insulator.
>> Usually a RED insulated wire.
>> Just unsolder this lead and insert the VOM.
> Forgot to add: if bias pot controls the final amp and you
> want to eliminate the additional reading of the driver,
> just crank the pot to full cutoff, measure the current
> and then adjust the pot for an additional 6 ma.
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