SB-634 Ten Minute Timer Parts

Michael Tallent mtallent at CONCENTRIC.NET
Mon Oct 22 11:04:34 EDT 2001


The 1N7009A is a 10 volt .25 watt zener diode.  You can use a 1N5234B or a
1N4740A.

I do not find a MPS-L61, but I do find a MPS-L51, it is a small plastic
inline transistor(TO92).  100 volt general purpose PNP silicon, Vceo of 100
volt.  Could use 2N5400, 2N5401, 2N6518-2N6520.  Almost anything with Vceo
of 100 volt or more, and PNP.

Mike W6MXV

----- Original Message -----
From: "Donald R. Simmons" <W5HOC1042 at AOL.COM>
To: <HEATH at LISTSERV.TEMPE.GOV>
Sent: Monday, October 22, 2001 8:41 AM
Subject: SB-634 Ten Minute Timer Parts


> Does anyone out there know where I can find a replacement for the
following
> parts? I cannot seem to find a cross reference.
>
>      MPS-L61 PNP Transistor
>      1N709A Zener Diode
>
> I need these two parts to fix the ten-minute timer circuit in my SB-634.
>
> Thanks!
>
> Don/W5HOC
>
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