Re: {Collins} Solid State 5R4 and 5U4 Device ID's

To: snowbirdbobby@xxxxxxxxx
Subject: Re: {Collins} Solid State 5R4 and 5U4 Device ID's
From: k.r.ericson@xxxxxxx
Date: Fri, 31 Oct 2008 18:33:14 +0000
Cc: collins@xxxxxxxxxxxxx
Delivered-to: collins@xxxxxxxxxxxxx
In-reply-to: <755248.82008.qm@xxxxxxxxxxxxxxxxxxxxxxxxxxx>

I have a bunch just like it. I have used them in lots of stuff. Sarkes Tarzian.

S5019/1N1239 2800PIV - 500ma 5R4

S5018/1N1238 1600PIV - 750ma 5U4, 5V4, 5Y3, 5Z4

-------------- Original message from Bobby <snowbirdbobby@xxxxxxxxx>: --------------

Hi all.
I picked up a bag containing solid state 5R4 and 5U4 several years ago. They are built like battleships, fully metal encased, and with solid metal bases. The 5R4's have 3-pin bases, and are labled ST, S5019, 1N1239, 1K on their sides, and the 5U4's are 8 pin, and labled ST, S5018, IN1238, 3L. I'm fairly certain that the ST is the manufacturer.

Can anyone help me ID these devices and tell me if they are quality replacements (or junk).

Thank you -- Bob K4SSS

References:
- {Collins} Solid State 5R4 and 5U4 Device ID's
  - From: Bobby

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