In rec.antiques.radio+phono John Byrns wrote:
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.

I'm pretty sure it is a coincidence. I have only ever seen such indication
on some Philips equipment where the letters KW (kalenderweek,
kalenderwoche) are printed in front of a 3 or 4 digit code. Every single
other piece of equipment I ever saw with such a code only has letters with
another meaning in front of or after the date code.

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Met vriendelijke groet,

Maarten Bakker.

John Byrns a écrit :
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.


Could well be but so far only found K and was told so.

I was also told the first 3 digits where the factory ID,
can anyone confirm this?

Q: to OP. What country of origin is the cap from?
Could it be a code for country of origin? Like Canada, US...

Syl

On Sep 24, 4:11*pm, Syl wrote:
John Byrns a crit :





In article , Syl wrote:

John Byrns wrote:
In article , Syl wrote:

Franc Zabkar a crit :
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.

Could well be but so far only found K and was told so.

I was also told the first 3 digits where the factory ID,
can anyone confirm this?

Q: to OP. What country of origin is the cap from?
Could it be a code for country of origin? Like Canada, US...

Syl- Hide quoted text -

- Show quoted text -

I used to make a living selling P.R. Mallory
the 3 digit code is the manufacturer, 274
is/was RCA. And 235 is/was Mallory.
Ole P.R Mallory used to snap up companies
like RMC and Duracell. When he retired they
started selling off all those companies.

73 OM

n8zu

raypsi wrote:

I used to make a living selling P.R. Mallory
the 3 digit code is the manufacturer, 274
is/was RCA. And 235 is/was Mallory.
Ole P.R Mallory used to snap up companies
like RMC and Duracell. When he retired they
started selling off all those companies.


Now, Mallory (Capacitors) is owned by Cornell Dubiler.


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