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Need MC4035P chip for a DC503


georgeplhak
 

I could tell the story of how I blew up this previously working
counter by plugging it into a TM500 frame with some rear interface
wiring and a broken key, if anyone is interested in a cautionary tale?

In any case, today I have found the last of about seven chips that
were fried and the counter now works again except for the most
significant digit for which I need one of these Motorola latches.

Many online parts places say that they have these chips but have multi
hundred dollar minimum orders.

Can anyone please suggest a reasonable source, or might you have one
or two onhand that I could purchase?

Thanks much

George Plhak
Acton, Ontario, Canada


 

George,

Can you tell us which counter?

John






________________________________________________________________
Sent via the WebMail system at aztec-net.com


georgeplhak
 

TEK DC503

--- In TekScopes@..., "jbarnes" <jbarnes@...> wrote:

George,

Can you tell us which counter?

John


 

I have a CD4035AN if you want it.

I can't tell if it's the same as the MC4035P (the pkg should be the same).

Here's a data sheet for the CD4035 if it helps you sleuth it out -







You're welcome to it, just give me your address -



Dan

_____

From: TekScopes@... [mailto:TekScopes@...] On Behalf
Of georgeplhak
Sent: Monday, January 29, 2007 7:28 PM
To: TekScopes@...
Subject: [TekScopes] Need MC4035P chip for a DC503



I could tell the story of how I blew up this previously working
counter by plugging it into a TM500 frame with some rear interface
wiring and a broken key, if anyone is interested in a cautionary tale?

In any case, today I have found the last of about seven chips that
were fried and the counter now works again except for the most
significant digit for which I need one of these Motorola latches.

Many online parts places say that they have these chips but have multi
hundred dollar minimum orders.

Can anyone please suggest a reasonable source, or might you have one
or two onhand that I could purchase?

Thanks much

George Plhak
Acton, Ontario, Canada


faustian.spirit
 

Would the Mot equivalent for a CD4035 not be MC14035, as opposed to
MC4035?

--- In TekScopes@..., "Dan Meeks" <dan-meeks@...> wrote:

I have a CD4035AN if you want it.

I can't tell if it's the same as the MC4035P (the pkg should be the
same).

Here's a data sheet for the CD4035 if it helps you sleuth it out -







You're welcome to it, just give me your address -



Dan

_____

From: TekScopes@... [mailto:TekScopes@...]
On Behalf
Of georgeplhak
Sent: Monday, January 29, 2007 7:28 PM
To: TekScopes@...
Subject: [TekScopes] Need MC4035P chip for a DC503



I could tell the story of how I blew up this previously working
counter by plugging it into a TM500 frame with some rear interface
wiring and a broken key, if anyone is interested in a cautionary tale?

In any case, today I have found the last of about seven chips that
were fried and the counter now works again except for the most
significant digit for which I need one of these Motorola latches.

Many online parts places say that they have these chips but have multi
hundred dollar minimum orders.

Can anyone please suggest a reasonable source, or might you have one
or two onhand that I could purchase?

Thanks much

George Plhak
Acton, Ontario, Canada





[Non-text portions of this message have been removed]


Luis Cupido
 

Correct,

The MC4035 is NOT a CD4035

(the MC14035 is a CD4035).

luis c.
ct1dmk

----- Original Message -----
From: "faustian.spirit" <faustian.spirit@...>
To: <TekScopes@...>
Sent: Tuesday, January 30, 2007 9:00 AM
Subject: [TekScopes] Re: Need MC4035P chip for a DC503


Would the Mot equivalent for a CD4035 not be MC14035, as opposed to
MC4035?
--- In TekScopes@..., "Dan Meeks" <dan-meeks@...> wrote:

I have a CD4035AN if you want it.
I can't tell if it's the same as the MC4035P (the pkg should be the
same).
Here's a data sheet for the CD4035 if it helps you sleuth it out -

You're welcome to it, just give me your address -
Dan
_____ From: TekScopes@... [mailto:TekScopes@...]
On Behalf
Of georgeplhak
Sent: Monday, January 29, 2007 7:28 PM
To: TekScopes@...
Subject: [TekScopes] Need MC4035P chip for a DC503
I could tell the story of how I blew up this previously working
counter by plugging it into a TM500 frame with some rear interface
wiring and a broken key, if anyone is interested in a cautionary tale?
In any case, today I have found the last of about seven chips that
were fried and the counter now works again except for the most
significant digit for which I need one of these Motorola latches.
Many online parts places say that they have these chips but have multi
hundred dollar minimum orders.
Can anyone please suggest a reasonable source, or might you have one
or two onhand that I could purchase?
Thanks much
George Plhak
Acton, Ontario, Canada
Yahoo! Groups Links


 

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




________________________________________________________________
Sent via the WebMail system at aztec-net.com


 

Here is a datasheet for it:



Ciao
Peter



-----Urspr¨¹ngliche 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




________________________________________________________________
Sent via the WebMail system at aztec-net.com







Yahoo! Groups Links




The information contained in this e-mail message is privileged and
confidential and is for the exclusive use of the addressee. The person
who receives this message and who is not the addressee, one of his
employees or an agent entitled to hand it over to the addressee, is
informed that he may not use, disclose or reproduce the contents thereof.


Luis Cupido
 

Peter, thas is an MMC which is a 4000 series cmos IC
that is equal to the CD4053.

The MC4035P is a motorola "only" IC, much older
with no equivalent as far as I know.

Luis
ct1dmk

----- 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




________________________________________________________________
Sent via the WebMail system at aztec-net.com







Yahoo! Groups Links




The information contained in this e-mail message is privileged and
confidential and is for the exclusive use of the addressee. The person
who receives this message and who is not the addressee, one of his
employees or an agent entitled to hand it over to the addressee, is
informed that he may not use, disclose or reproduce the contents thereof.




Yahoo! Groups Links


 

Peter, thas is an MMC which is a 4000 series cmos IC that is equal to the
CD4053.
The MC4035P is a motorola "only" IC, much older with no equivalent as far as I
know.

Ooops, sorry - so again the wrong part.
I had a look for this part in our stock but I could not find one...
Sorry.

Ciao
Peter

The information contained in this e-mail message is privileged and
confidential and is for the exclusive use of the addressee. The person
who receives this message and who is not the addressee, one of his
employees or an agent entitled to hand it over to the addressee, is
informed that he may not use, disclose or reproduce the contents thereof.


faustian.spirit
 

--- In TekScopes@..., "Luis Cupido" <cupido@...> wrote:

Peter, thas is an MMC which is a 4000 series cmos IC
that is equal to the CD4053.

The MC4035P is a motorola "only" IC, much older
with no equivalent as far as I know.

Luis
ct1dmk



----- 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¨¹ngliche 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.

Can somebody confirm this? Is this design THAT old?


I did find a referenceto the MC4035P. It was described as a quad 'D'
type
latch
with open collector outputs.
From photos of that unit, it looks like "mostly garden variety TTL".
If this isn't in a speed-critical circuit... why don't replace it with
a daughterboard with two 7474 (or possibly one 74174 would do) and a 7406?



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




________________________________________________________________
Sent via the WebMail system at aztec-net.com







Yahoo! Groups Links




The information contained in this e-mail message is privileged and
confidential and is for the exclusive use of the addressee. The person
who receives this message and who is not the addressee, one of his
employees or an agent entitled to hand it over to the addressee, is
informed that he may not use, disclose or reproduce the contents
thereof.




Yahoo! Groups Links


georgeplhak
 

Since when was being OLD a problem? (grin)
OLD test equipment is very good when it still works and is useful.

Because the DC503 is discrete TTL, it is easy to fix and parts should
be available and they generally are, except for these peculiar (as
someone pointed out) Motorola proprietary chips.

This DC503 now works fine by the way. I rearranged the chips so that
only one digit (currently the MSD) is unlit, the rest of the
instrument counts beautifully. I'd estimate it is of 1975-77 vintage.

If only things today were so robust?!

Thanks for your interest.

George


--- In TekScopes@..., "faustian.spirit"
<faustian.spirit@...> wrote:

--- In TekScopes@..., "Luis Cupido" <cupido@> wrote:

Peter, thas is an MMC which is a 4000 series cmos IC
that is equal to the CD4053.

The MC4035P is a motorola "only" IC, much older
with no equivalent as far as I know.

Luis
ct1dmk



----- 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¨¹ngliche 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.

Can somebody confirm this? Is this design THAT old?


I did find a referenceto the MC4035P. It was described as a quad 'D'
type
latch
with open collector outputs.
From photos of that unit, it looks like "mostly garden variety TTL".
If this isn't in a speed-critical circuit... why don't replace it with
a daughterboard with two 7474 (or possibly one 74174 would do) and a
7406?



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




________________________________________________________________
Sent via the WebMail system at aztec-net.com







Yahoo! Groups Links




The information contained in this e-mail message is privileged and
confidential and is for the exclusive use of the addressee. The person
who receives this message and who is not the addressee, one of his
employees or an agent entitled to hand it over to the addressee, is
informed that he may not use, disclose or reproduce the contents
thereof.




Yahoo! Groups Links


icembreros_cadic
 

-----Urspr¨¹ngliche 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.

Can somebody confirm this? Is this design THAT old?
Yes the chip design is more than 35 years old.
It appears in my Motorola TTL Integrated Circuits Data Book, First
Edition of 1971


faustian.spirit
 

--- In TekScopes@..., "icembreros_cadic" <eb4apl@...> wrote:

-----Urspr¨¹ngliche 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.

Can somebody confirm this? Is this design THAT old?
Yes the chip design is more than 35 years old.
It appears in my Motorola TTL Integrated Circuits Data Book, First
Edition of 1971
I thought CD4xxx had been on the market by then... what do I know,
it's older than me for sure :)