----- Original Message -----
From: "Ullrich Peter" <peter.ullrich@...>
To: <jbarnes@...>; <TekScopes@...>
Sent: Tuesday, January 30, 2007 12:49 PM
Subject: AW: [TekScopes] Re: Need MC4035P chip for a DC503
Here is a datasheet for it:
Ciao
Peter
-----Urspr???ngliche Nachricht-----
Von: TekScopes@... [mailto:TekScopes@...] Im Auftrag von
jbarnes
Gesendet: Dienstag, 30. J???nner 2007 13:40
An: TekScopes@...
Betreff: Re: [TekScopes] Re: Need MC4035P chip for a DC503
Luis is absolutely right. I am pretty sure that the design of the DC503 was
before 4000 series of CMOS was invented.
I did find a referenceto the MC4035P. It was described as a quad 'D' type latch
with open collector outputs.
I looked at the schematics of the later DC50xA counters and they do not use
these chips.
I think the best source is another DC503. They are selling pretty cheap on eBay.
Regards,
John
Correct,
The MC4035 is NOT a CD4035
(the MC14035 is a CD4035).
luis c.
ct1dmk
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