Obscure Parts Identification Challenge

Thread Starter

iONic

Joined Nov 16, 2007
1,662
I am at a loss with respect to a few components. Can't seem to find the datasheets for them.

The following components came from a multiplex board off an old HeathKit Reciever/Amp.

Motorola 442-14 7727 14 Pin DIP
RCA 417-123 234 10 lead metal can part
Fairchild 442-20 7231 6 lead metal can part


Also two other components:
They are Metal can transistor like parts..
417-240 7219A 4 lead labeled on board as S, D, G1, & G2
417-167 7218A 4 lead labeled on board as S, D, G, C

any insight would be appreciated.
 

SgtWookie

Joined Jul 17, 2007
22,230
You might need the Heathkit schematic for the device in question.
What was the model of the Receiver/Amp?

Here is a site with many Heathkit schematics/manuals:
http://www.vintage-radio.info/heathkit/

Wait a sec - look at this Heathkit cross-reference page:
http://web.archive.org/web/20041205012314/www.d8apro.com/heath3.htm
From there I found:
YourPart: GenericPart[, AltPart1, AltPart2]; Description
417-123: CA3012; Wide Band IF Amp (linear IC)
417-167: UC734; JFET 30V 10mA TO-72 (N-ch)
417-240: 40673, 40675, 3N201; Dual Gate MOS-FET20V 50mA TO72
442-14: MC1438R; Op Amp
442-20: uA703; Op Amp

Now, I don't know about the accuracy of the list; it was compiled by input from many contributors. Better than nothing, I suppose.
 

Thread Starter

iONic

Joined Nov 16, 2007
1,662
WOW!
Never in a few thousand years did I expect to get little, if any response for these parts. Good Job Sgt.
 

SgtWookie

Joined Jul 17, 2007
22,230
Most of the battle is just figuring out a decent search string to use ;)

My Google search was "Heathkit schematics", and the 1st link I posted was the first hit.
At the bottom of the page was a link to the cross-reference site, which no longer exists. However, I went to the "Wayback Machine", and plugged in the URL that no longer exists - and they happened to have a few years' worth of copies of the website.
 
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