[hpsdr] Penelope-PennyWhistle initial operation

[radio at netins.net]

Graham & List,

Since Graham's post I dug out my Penny Whistle and examined it.  There
are no insulators on the PA transistors.

Also, the output transformer is pretty simple, I probably did not make
the driver transformer exactly as it should have been made.  I should
have twisted the wires together with more twists per unit length.

John,  W0GN
On 2019-04-13 5:56 pm, Graham / KE9H wrote:

> John, W0GN said: 
>>>> New insulators were used with the transistors that were replaced.   
> 
> What insulators are you referring to? 
> The PA transistors in PennyWhistle are real RF transistors, with the FET source brought out on the metal mounting tab. 
> They are supposed to be mounted metal on metal to the heatsink. 
> No insulators. 
> 
> --- Graham / KE9H
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/attachments/20190414/d3952443/attachment.html>