[ARC5] transistors

[Mike Feher]

The early Burr-Brown Op-Amps or Instrumentation Amps were built with
discrete components, but, were potted. I have some as well. Those were not
ICs. 73 - Mike

Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960




-----Original Message-----
From: arc5-bounces at mailman.qth.net [mailto:arc5-bounces at mailman.qth.net] On
Behalf Of Kenneth G. Gordon
Sent: Friday, October 01, 2010 3:14 PM
To: jfor at quik.com; Discussion of AN/ARC-5 military radio equipment.
Subject: Re: [ARC5] transistors

I still have some OPAMPS here which are exactly the same form 
factor as a domino but are 3 times as thick. They have gold plated 
pins, but only about 7 of them, and are "potted" in some form of 
black epoxy.

These were used in a USGS seismic amplifier. Can't remember 
who made them, but it may have been Burr-Brown...

They work quite well, although their bandwidth is somewhat 
limited.

Ken W7EKB
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