Help identifying a vintage multimeter

[michalism]

Hello

I recently acquired a vintage analogue multimeter. According to the printing on the front panel, it is a "SEC" model CT-330.
I was not able to find any kind of info about it, apart from a reference to another similar model on radio-museum site.
Also in another forum, it was suggested that it may be a rebranded Kaise SK-160, but I am not sure if this is the case, as I would like to see more evidence.

I am attaching some images for reference.

Any kind of help would be much appreciated!
Thank you very much in advance!
Michalis

[The Philpott]

The style looks East German to me. It's rather nice, i hope it works for you.
Dave

[AC/HL]

I had one very similar many years ago, long gone now. Mine was definitely Japanese, and this one says Japan on the back cover. The cover in mine was pressed steel.

[michalism]

hello.

the case on mine seems to be bakelite. I'll take a better look, but I do not think it is metal.

[M0SOE_Bruce]

These were made in Japan in the 1970s. There was a major manufacturer called Sanwa Electric, which I suspect is what SEC stands for. They also were a ghost manufacturer for other labels. The one I have was marketed under the Jana label for a large Canadian electronic parts distributor. It appears to have a mirror added as well.

[michalism]

Originally Posted by M0SOE_Bruce

These were made in Japan in the 1970s. There was a major manufacturer called Sanwa Electric, which I suspect is what SEC stands for. They also were a ghost manufacturer for other labels. The one I have was marketed under the Jana label for a large Canadian electronic parts distributor. It appears to have a mirror added as well.

I know the Sanwa meters, I never thought that they may be behind the SEC brand.
Interesting tip, I will look it up!

[GroovyG]

Some similarities inside and out to my TMK skip find - that you'll all tell me is an extremely red herring.

[Silicon]

I have a CT-330 multimeter which is almost identical to the SEC multimeter in post #1.

The dial is not marked 'SEC'.

It may have been manufactured by Kyoritsu.
Then again, have a look at TMK (Tachikawa), YEW (Yokagawa) and Hioki meters.

[michalism]

thanks for the hints.
so far, I have not been able to find a connection between SEC and Sanwa Electric, but I am still checking.
I will also check the other suggestions.

[Craig Sawyers]

Funnily enough I found my old original early 70's meter up in the attic while putting away the Christmas decorations. It is labelled Honor on the meter scale, and Japan at the bottom. I bought it from one of the dealers that advertised in PW at that time, and is the TE10A. Still seems to work pretty well, and the movement is free and not sticky.

The orange ohms adjust is exactly the same as in Michalis's meter, which supports the view that all of these came out of the same company, using common parts and under different brand names.

Might try seeing what the calibration is like...

Craig

[Craig Sawyers]

Mine is one of the many variants of the same meter shown here https://www.experimentierkasten-boar...pic.php?p=8883. As compared with the schematic on that page, mine has a 2.5kV (ouch!) range instead of 500V, one more DCV range and one fewer current ranges.

But they are all minor variants of the same thing. I suspect that the OP's meter has a similar plethora of versions

[avocollector]

Fascinating - not wishing to hijack thread but would anybody here actually use a 2.5kv scale on a meter that size (or any similar size Jap/aisian meter)? I would be nervous as heck doing it and at most would use it for valve ht of 600v at highest. Avo's yep as they are large and solid but not on the small stuff.

[Joe_Lorenz]

Dear Craigh,

you meant this item over there:

http://https://www.ebay.de/itm/Messgerat-Renkforce-V-62/402022015680?hash=item5d9a6122c0%3Ag%3AhRwAAOSwDyF eDjJc&LH_ItemCondition=4

They must have produced a huge quantity of these ... Mine lasted some month only, board caught fire. I was very happy to find a TS-352 ME9-H/U then. Today my favourite is a very fine BBC Metrawatt Nixie unit SYMETRA D.

Regards, Joe

[G3VFB_Anton]

The mirror was for meter reading accuracy - useful for me sideburns too

Originally Posted by M0SOE_Bruce

These were made in Japan in the 1970s. There was a major manufacturer called Sanwa Electric, which I suspect is what SEC stands for. They also were a ghost manufacturer for other labels. The one I have was marketed under the Jana label for a large Canadian electronic parts distributor. It appears to have a mirror added as well.