[hpsdr] PennyWhistle

Graham / KE9H ke9h.graham at gmail.com
Mon Jul 13 10:31:13 PDT 2015


Bob:

Most likely, something is wrong with T2.

It is shorted or something, or open at the center tap.

I would remove it, inspect, and rewind if necessary.

--- Graham / KE9H

==

On Mon, Jul 13, 2015 at 11:48 AM, Bob Cowdery <bob at bobcowdery.plus.com>
wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
> Hi all,
>
> Finally got around to building my PennyWhistle which has been sitting on
> the shelf for a few years. The build looks clean. All the pre-operation
> setup went fine and the bias is set correctly. The SWR on the input is as
> specified.
> However, when I apply drive from Penny there is no output and the current
> consumption actually decreases from its 950mA (no drive setting) to 600 and
> lower as the drive is increased.
>
> Any hints on where to start looking appreciated.
>
> 73 Bob (G3UKB)
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