[Heathkit] Part needed forSA-5010 Keyer

Thu, 13 Jun 2002 13:34:23 -0500

Steve,
U4 is a NTE960, or ECG960
Hope this helps,

de Benton wb5twc


----- Original Message -----
From: "Steve Banks" <[email protected]>
To: <[email protected]>
Sent: Wednesday, June 12, 2002 8:51 PM
Subject: [Heathkit] Part needed forSA-5010 Keyer


> Hi All-
>
> Does anyone know where I can procure the "U4" IC used in the Heathkit
> SA-5010 Electronic Keyer?  It's the rectifier/voltage regulator, I
believe,
> that is situated at the input connector where the HK wall-wart plugs into
> the keyer.  The HK part number was #442-54.
>
> The assembly manual states that it can be replaced with a type 7805 IC;
> however a quick check in RF Parts yielded no matches to that number.
>
> Anyone have a clue?
>
> Tnx es 73
>
> Steve Banks
> K0PQ
>
>
>
>
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