Re: 23cm pre amplifier


Robin Szemeti - G1YFG
 

You might want to check the seriesĀ  L or R that feeds the device, if the device went short it probably blew the series dropper.

If struggling with eyesight, more than happy to repair for you by return of post.


On Tue, 22 Sep 2020 at 13:15, GM6VXB via groups.io <martin.andrew=btinternet.com@groups.io> wrote:

After a few good days on tropo, this morning turned on the 23cm system to find that the pre amplifier had died.

This was a very good VHF Designs low noise high gain pre-amp.

Found that the initial device had gone short. Paperwork says an 'SKY67151', but looking closely it looks like

and is marked as a PGA-103.

Anyway, replaced it with a 103 but the pre amp is still very low (maybe no) gain.


So is there a good source of 'built' pre amplifers as the only ones I can see are the VHF design ones.


Eyesight now not good enough to try to build one of the DDK ones.


Martin, GM6VXB


(QRT 23cm until sorted.)


--
Robin Szemeti - G1YFG

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