A gazillion vintage transistors for sale on Ebay

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Ron,

Really nice collection! Thanks for sharing them! I have a copy of
an article from tube collector magazine that shows your transistor
with the black band around it and the point contact adjustment. It
says it is a Bell Labs type A (If I remember correctly). I think
other companies may have also used that case style for a while as it
was an early standard. There is even a pic of a standardised socket
that fits that transistor in the article. Article even gives
datasheet for the unit. I can send you a copy if you would like but
it is a large file. Email me if you want it.

Hang on to those. A while back a group of about 5 point contacts +
a few others went for around $800-900.00 on Ebay. They were in boxes
but I think some of yours are quite a bit earlier. Have you ever
tested the junctions with a meter to see if they still work?


On Sun, 28 Nov 2004 19:29:54 GMT, "Ron, KC4YOY"
<kc4yoy@carolina.rr.con> wrote:

Even if you are not a transistor collector, it is still pretty neat
seeing that many early transistors.


I case you're interested, here's a link to my page
of vintage transistors.
http://www.radioheaven.homestead.com/EarlyTransistors.html

Ron

 

[R Oxley]

"Watson A.Name - "Watt Sun, the Dark Remover"" <NOSPAM@dslextreme.com> wrote
in message news:10qobe4jj1tg471@corp.supernews.com...

"Ron, KC4YOY" <kc4yoy@carolina.rr.con> wrote in message
news:SGpqd.4349$8S5.515962@twister.southeast.rr.com...

Even if you are not a transistor collector, it is still pretty neat
seeing that many early transistors.


I case you're interested, here's a link to my page
of vintage transistors.
http://www.radioheaven.homestead.com/EarlyTransistors.html

Ron

Those ICs were made by General Instruments, that's their "GI" logo, and
the date codes are around the 17th week of 1966. That smaller-than-DIP
sized package was typical for that time period.

Those look like a variation on "flat-pack" ICs. I still have to demonstrate
proper preparation and soldering technique of this type of chip (among other
types of devices) about once a year for my soldering recertification at the
Naval Aviation Depot at North Island, San Diego, CA.

Bob