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LF: Re: RCA 7844 RCA 7819 (7619 ?) TO3 Power trans ideas as to

from [Alan Melia] [Permanent Link][Original]
To: <[email protected]>
Subject: LF: Re: RCA 7844 RCA 7819 (7619 ?) TO3 Power trans ideas as to equivalents ??
From: "Alan Melia" <[email protected]>
Date: Sat, 14 Jun 2014 18:29:09 +0100
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Those dont look like RCA part numbers.....more like date codes ...viz week 44 of 1978 
RCA power devices have 5 digit nos starting like 40xxx. I think I have a 1980s data book here somewhere
 
Alan
G3NYK
----- Original Message -----
From: Graham
Sent: Saturday, June 14, 2014 3:05 PM
Subject: LF: RCA 7844 RCA 7819 (7619 ?) TO3 Power trans ideas as to equivalents ??

RCA  Power transistors  TO3   case
 
RCA  7844  RCA  7819  (7619 ?)
 
Uses  as series regulators  in psu 
 
Not seeing  listed  / showing  in web searches  , anyone  any  ideas as to  equivalents  ?? 
 
Tnx- Graham,
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