[R-390] OT: Misc. Mil Parts Question

[Bob Camp]

Hi,

Logic gates existed before IC's came along. I suspect that if you rip open
the flip flop you will find a bunch of diodes, capacitors,resistors and a
pair of transistors. I'd keep them intact as an example of what came before
the first IC's.

    Bob Camp
    KB8TQ


----- Original Message -----
From: "Michael Melland" <w9wis@charter.net>
To: <R-390@mailman.qth.net>
Sent: Sunday, February 23, 2003 1:47 PM
Subject: [R-390] OT: Misc. Mil Parts Question


> A guy at work that was in the Navy back in the 60's dug some NOS parts out
> of his garage and gave them to me.  I got them cleaned up today and was
> wondering if anyone recognizes them or has any idea if they'd still be
> useful ?
>
> 1.  Gray plug in "tube like" round cans, abt 2.5 " long, marked Engineer
> Electronics, T-643, Flip-Flop.... are these early flip-flop IC's ?
>
> 2.  Several NOS Polyphase Instrument Co, LPF 14.5 KC 47K, marked also 6540
>
> 3.  About 2.75 " long black paper tubes with 6-pins on one end and a
socket
> with spring loaded contact on the other.  Marked with a "pulse trace" with
> 3C and a part number 3004325.  Look almost like a bulb socket of some
type.
>
> He told me these were  comm. items as he worked as an ET in a RTTY
room....
>
> Mike
> --
> Michael Melland, W9WIS
> Winneconne, Wisconsin USA EN54pc
> qrp-l #1656 - qrparci # 9875 - iparc #252
> ars #1075  -  http://webpages.charter.net/w9wis/
>
>
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