[Milsurplus] ID an IFF (or possibly radar)

[John Franke]

Try looking for APS-13, which used 6J6 tubes for the transmitter and local 
oscillator.

John  WA4WDL

----- Original Message ----- 
From: "Ian Wilson" <ianmwilson73 at gmail.com>
To: <cosmoline at aa4rm.ba-watch.org>
Cc: <milsurplus at mailman.qth.net>
Sent: Tuesday, July 01, 2008 1:37 PM
Subject: Re: [Milsurplus] ID an IFF (or possibly radar)


> Hi Marty,
>
> This is a single unit, RX/TX combined. It is pretty compact (perhaps
> 16" x 10" x 8") and probably weighs less than 20 pounds. Looking at
> the APN-1 schematic, it could be similar (minus all the power supply,
> relays, etc) although the pair of 8025 argues for considerably more
> TX power, and I wonder what the 829B modulator is for. Perhaps
> this is a tail-end radar?
>
> Any pics of SCR-518 on the web? Didn't find any.
>
> 73, ian K3IMW
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