Re: [TenTec] Bias Adjustment on Century 21

[geoffrey mendelson <geoffreymendelson@gmail.com>]

On Jun 16, 2009, at 7:42 PM, Tom at Hayseed Hamfest Co. wrote:

> Anybody out there know how to set the bias to the final transistors  
> in a
> Century 21?  I see the pot that adjusts the bias -- it's supposed to  
> set
> the quiescent current in the collector circuit to 6 mA.
>
> My question is basically where/how (in physical terms) do you measure
> this current?  The final amp is a sealed unit for all practical  
> purposes.

Have you looked in the manual? You can download it LEGALLY for free at:

http://radio.tentec.com/downloads/obsmanuals

73,

Geoff.
--
geoffrey mendelson N3OWJ/4X1GM
Jerusalem Israel geoffreymendelson@gmail.com