Mallory date code ?
 

Does anyone know the date codes that Mallory uses on their electrolytic
caps a 1900ufd at 450v? Here's a couple of lines..
CGS192T450X5L3PH
235-8112K
Thanks

--

73
Hank WD5JFR

Mallory date code ?
 

On Sep 22, 4:37*pm, "Henry Kolesnik"
wrote:
Does anyone know the date codes that Mallory uses on their electrolytic
caps a 1900ufd at 450v? *Here's a couple of lines..
CGS192T450X5L3PH
235-8112K
Thanks

If I'd have to guess, Hank, I would say that cap was made in the 12th
week of 1981. That's according to the last 4 digits.

James

Mallory date code ?
 

On Mon, 22 Sep 2008 16:37:00 -0500, "Henry Kolesnik"
put finger to keyboard and composed:

Does anyone know the date codes that Mallory uses on their electrolytic
caps a 1900ufd at 450v? Here's a couple of lines..
CGS192T450X5L3PH
235-8112K
Thanks

I have three screw terminal Mallory caps with the following markings:

MALLORY
MADE IN U.S.A
TYPE CGS
30000MFD 15VDC
POS + 85C
MAX SURGE 20VDC
95661319
235-8102K

MALLORY
MADE IN U.S.A
TYPE CGS
29000MFD 15VDC
POS + 85C
MAX SURGE 30VDC
CGS293U025R4C3PH
235-8532K

MALLORY
MADE IN U.S.A
TYPE CGS
21000MFD 16 VDC
POS + 85C
MAX SURGE 20 VDC
CGS213U016R3L
362 8906 56699

They all date from around the early 80s.

Here they are pictured among Sprague caps of the same vintage:
http://www.users.on.net/~fzabkar/screwcaps70.jpg

I'd say that 8112 is a YYWW date code.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

Mallory date code ?
 

snip

MALLORY
MADE IN U.S.A
TYPE CGS
21000MFD 16 VDC
POS + 85C
MAX SURGE 20 VDC
CGS213U016R3L
362 8906 56699

They all date from around the early 80s.

Here they are pictured among Sprague caps of the same vintage:
http://www.users.on.net/~fzabkar/screwcaps70.jpg

I'd say that 8112 is a YYWW date code.

It is a YYMM date code. I have several pieces of vintage medical electronics
equip, and the date codes on the Mallory caps all match closely the date
codes on other parts.

" MALLORY
MADE IN U.S.A
TYPE CGS
30000MFD 15VDC
POS + 85C
MAX SURGE 20VDC
95661319
235-8102K

This one is from Feb 1982 - and it's Kosher too. ;-)

Remember Sprague's motto?
Don't be vague, ask for Sprague.

a little levity . . . very little . . .
Regards,
Tom

Mallory date code ?
 

On Tue, 23 Sep 2008 18:24:47 -0400, "hifi-tek"
put finger to keyboard and composed:

I'd say that 8112 is a YYWW date code.

It is a YYMM date code.

Then how do you account for the "32" in "235-8532K"?

Here are two more caps, with date codes of 7945 and 8102:

MALLORY
MADE IN U.S.A
CGS591T200R3C3PL
590MFD 200VDC
POS + 85C
MAX SURGE 250VDC
1014861-00
235-7945K

MALLORY
BIONOL
CAPACITOR
6MFD
660 VAC
60 HZ NO PCBS
95686701
37NB6606
PROTECTED
C 200 AFC
64591 PTD
8102-1

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

Mallory date code ?
 

Franc Zabkar a écrit :
On Tue, 23 Sep 2008 18:24:47 -0400, "hifi-tek"
put finger to keyboard and composed:

I'd say that 8112 is a YYWW date code.
It is a YYMM date code.

Then how do you account for the "32" in "235-8532K"?

It IS YYWW (that is year and week)
so....235-8532 means 1985, 32nd week. That is why the K is there...

Syl

Mallory date code ?
 

In article , Syl wrote:

Franc Zabkar a écrit :
On Tue, 23 Sep 2008 18:24:47 -0400, "hifi-tek"
put finger to keyboard and composed:

I'd say that 8112 is a YYWW date code.
It is a YYMM date code.

Then how do you account for the "32" in "235-8532K"?

It IS YYWW (that is year and week)
so....235-8532 means 1985, 32nd week. That is why the K is there...

I agree that it is YYWW, but I don't understand what you are saying the reason
is that the "K" is there? Why is the "K" there?

--
Regards,

John Byrns

Surf my web pages at, http://fmamradios.com/

Mallory date code ?
 

John Byrns wrote:
In article , Syl wrote:

Franc Zabkar a écrit :
On Tue, 23 Sep 2008 18:24:47 -0400, "hifi-tek"
put finger to keyboard and composed:

I'd say that 8112 is a YYWW date code.
It is a YYMM date code.
Then how do you account for the "32" in "235-8532K"?
It IS YYWW (that is year and week)
so....235-8532 means 1985, 32nd week. That is why the K is there...

I agree that it is YYWW, but I don't understand what you are saying the reason
is that the "K" is there? Why is the "K" there?


weeK, to avoid any possible confusion to the date format used.

Syl

Mallory date code ?
 

"Syl" wrote in message ...
John Byrns wrote:
In article , Syl wrote:

Franc Zabkar a écrit :
On Tue, 23 Sep 2008 18:24:47 -0400, "hifi-tek"
put finger to keyboard and composed:

I'd say that 8112 is a YYWW date code.
It is a YYMM date code.
Then how do you account for the "32" in "235-8532K"?
It IS YYWW (that is year and week)
so....235-8532 means 1985, 32nd week. That is why the K is there...

I agree that it is YYWW, but I don't understand what you are saying the
reason
is that the "K" is there? Why is the "K" there?


weeK, to avoid any possible confusion to the date format used.

Syl


I have two that have the code 235-6039H. Looks like the 39th weeH of 1960.

Mallory date code ?
 

In article , Syl wrote:

John Byrns wrote:
In article , Syl wrote:

Franc Zabkar a écrit :
On Tue, 23 Sep 2008 18:24:47 -0400, "hifi-tek"
put finger to keyboard and composed:

I'd say that 8112 is a YYWW date code.
It is a YYMM date code.
Then how do you account for the "32" in "235-8532K"?
It IS YYWW (that is year and week)
so....235-8532 means 1985, 32nd week. That is why the K is there...

I agree that it is YYWW, but I don't understand what you are saying the
reason
is that the "K" is there? Why is the "K" there?

weeK, to avoid any possible confusion to the date format used.

That's where I figured you were headed with the "K", but typically the YYWW date
code, as used on semiconductors for example, is used without a format indicator,
in fact IIRC some versions of the YYWW date code scramble the digits in one way
or another to obscure their meaning.

I wonder if the "K" might not have another meaning, such as a code to indicate
which of several factories the device was produced in? If that is the case, the
fact that "K" is the last letter in "week" might just be a coincidence.

--
Regards,

John Byrns

Surf my web pages at, http://fmamradios.com/