David -
I'm afraid I misled you on the MC14016 chip. That is a quad analog switch,
same thing as a CD4016.
Your chip is a programmable counter MC4016 as Curt said, and considerably
harder to find.
The only other thing I would say is the 'Chinese parts' are sometimes
counterfeit or bad.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
David wrote:
So, the mc4016P is equivalent to the mc 14016P. This is a 16 DIP plastic
case, divide by N from 0 to 9. The one that is bad is U 706 in the divider
board used as a counter, but there are several others of this type in the
circuit. If the 1 in front of the 4016 means cmos, I suppose they will work
in this circuit. A UV3 gets hot (no fans, no heat sink) and I think the
heat just got to it. The 14016 is listed in NTE and others and I will try
to get one locally. I will keep the list posted. Many thanks for the help.
It is interesting to read these threads and I imagine that all of this brain
power helps keep the list members sharp; all for a common Drake cause.
Thanks again.
Incidentally there are factories in China that sell these... Had several
emails within a few hours responding back to me. I guess they have active
mining software running all of the time. Go figure.
David Assaf, III
W5XU
-----Original Message-----
From: Garey Barrell [mailto:[email protected]]
Sent: Saturday, October 08, 2011 11:50 AM
To: Curt Nixon
Cc: Curt Nixon; David; [email protected]
Subject: Re: [Drakelist] uvc divider board
Curt -
OK. Guess you have to look and see what the circuit is! The standard CMOS
chips are CD4016, which is a Quad Analog Switch. Motorola's version is a
MC14016, which is why the 'extra' 1 at the beginning. I seem to recall now
that Motorola DID have a series of 4000 chips, much like the 10000 series
MCL. The TR-7 uses about a half dozen of the MC14016 (CD4016) switches.
Thanks for the clarification, ya gotta look at the diagram to be sure.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
Curt Nixon wrote:
Well..that may be true but here is the motorola datasheet for the
MC4016
It is indeed a Mod N divide by counter.. My app was in a HP counter
board.
Curt
Garey Barrell wrote:
Curt -
No, it's a 4016 / 14016, same thing. It's a quad analog switch used in
the TR-7 as well.
Motorola just put the '1' in front of the CMOS number.
The 4066 / 14066 is the same thing too. Easy to find.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement
CDs<www.k4oah.com>
Curt Nixon wrote:
I think he's talking about a 4016P..it is a dip package divide by N
chip. I think I found one for a counter I was repairing. I'll
check in the morning to see. I remember having a devil of a time
finding one.
Curt
Garey Barrell wrote:
David -
If it's a 14 pin DIP package the MC14016 is available from Mouser,
Digi-Key and others. It's just a CMOS Quad Analog switch.
Google MC14016BCP is the plastic DIP, the MC14016BCPG is the wide
temperature version.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement
CDs<www.k4oah.com>
David wrote:
Looking for a MC4016P for a UV3 divider board. This is an obsolete
part. Any sources?
David Assaf, III
W5XU
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