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Re: Sinclair Radio Labs A-2C08D



Hi Greg, W9GB

Your 4-pin device is probably a Dual Gate Mosfet 40673 that was very
popular and inexpensive for use in VHF preamplifiers in the early 1970s

In a separate email I have sent to you a typical schematic diagram of a
10 meter preamplifier using the above 4 pin device and I hope this helps.

73" de

i8CVS Domenico

----- Original Message -----
From: "G. Beat" <gregory.beat@comcast.net>
To: <amsat-bb@amsat.org>
Sent: Thursday, September 28, 2006 11:54 PM
Subject: [amsat-bb] Sinclair Radio Labs A-2C08D


> This orphan RF pre-amplifier (Model A-2C08D) landed on my door step.
>
> It is a VHF (132 - 174 MHz) pre-amplifier that Sinclair Radio Labs
> (Tonawanda, NY) marketed in the 1970s.  Its a Manhattan style construction
> in a nice Pomona box :-)
>
> Of course, this orphan does not work.  Chance that anyone may have a
> schematic?
> ... likely a 4-pin FET ... before I open it up on the workbench next week?
>
> Initial e-mail to current Sinclair went un-answered.  Phone call likely
> next, but I doubt they have the schematic for this old pre-amp on-file.
>
> Greg
> w9gb
>
>
> _______________________________________________
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