Hi Breck - The PA-109 is an interesting piece of obscure history. I've never seen one in the wild and only 1 photo (yours? online).

Essential gear for GRC-109/RS-1 ops, I had to build my own version so I could run the T/R system at 12 Volts these days.

It (and my DIY) can also run the GRC-9 receiver directly as they emulate the BA-48 battery - same voltages and connector. I built mine in a spare GRC-109 transmitter case. A fun project.

https://www.n6cc.com/wp-content/uploads/P9260257.jpg

https://www.n6cc.com/wp-content/uploads/IMG_2744.jpg

Cheers, Tim

N6CC

On Sun, Aug 4, 2024 at 3:11 PM B. Smith via MRCA <mrca@mailman.qth.net> wrote:

The Nems Clarke PA-109 has been shipped to another collector.
Z
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