how about these pre's...

rockstah · Post by **rockstah** » Tue Feb 28, 2006 4:53 pm

tubes i got from Terry. left to right.

beckman made in holland - number under name is 111

the fisher radio corporation new york - made in holland number under name is 215

amperex( in orange writing) - made in germany - faded writing on tube i cant read.

anyone know anything about these tubes?

trying the amperex in v1.

experimenting,
Mark

novosibir · Post by **novosibir** » Tue Feb 28, 2006 5:01 pm

Unfortunately a very bad photo, but at least the 3-th seems to be a Tungsram, but NOT made in Germany - made in Hungary.

Larry

rockstah · Post by **rockstah** » Tue Feb 28, 2006 5:12 pm

novosibir wrote:Unfortunately a very bad photo, but at least the 3-th seems to be a Tungsram, but NOT made in Germany - made in Hungary.

Larry

i know. my camara is 3.2.. bleh.. anyway.. u r saying the amperex is a tungsgram?
the amperex also has a small metal square tag inside the tube with the number 23 on it.

sub · Post by **sub** » Tue Feb 28, 2006 5:19 pm

novosibir wrote:Unfortunately a very bad photo, but at least the 3-th seems to be a Tungsram, but NOT made in Germany - made in Hungary.

Larry

novosibir · Post by **novosibir** » Tue Feb 28, 2006 6:43 pm

rockstah wrote:the amperex also has a small metal square tag inside the tube with the number 23 on it.

That's the proof for Tungsram

Larry

rockstah · Post by **rockstah** » Tue Feb 28, 2006 7:58 pm

novosibir wrote:
rockstah wrote:the amperex also has a small metal square tag inside the tube with the number 23 on it.
That's the proof for Tungsram

Larry

well now im confused.. amperex are tungsram tubes.. hmmm

novosibir · Post by **novosibir** » Tue Feb 28, 2006 9:33 pm

rockstah wrote:well now im confused.. amperex are tungsram tubes.. hmmm

Amperex never has been a tube manufacturer!

That's been a Philips/Holland idea, to label tubes and sell them overseas,
the same Philips/Holland idea is hidden behind Bugle Boy.

Later, as the well known tube manufacturers have stopped their own tube
production, they've sold their well known name to other manufacturers, which have payed a couple cents for each sold tube.

So you can find RFT's labelled as "Telefunken",
or yugoslavian EI's labelled as "Siemens", aso.

What do you think is the reason, that Mike Matthews can label russian
made tubes now as "Mullard" or TungSol"? Bingo

Larry

rockstah · Post by **rockstah** » Tue Feb 28, 2006 10:23 pm

kewl. so what about the other two ?

Mark

rockstah · Post by **rockstah** » Wed Mar 01, 2006 12:17 pm

Larry,
do you know anything about the other two tubes?

Mark

novosibir · Post by **novosibir** » Wed Mar 01, 2006 2:08 pm

rockstah wrote:Larry,
do you know anything about the other two tubes?

I can't say anything else with that bad photos, except that the labelling doesn't help much to identify a tube.

Larry

Bad Kitty · Post by **Bad Kitty** » Wed Mar 01, 2006 2:12 pm

A cool trick I learned for taking really clear pictures of small parts is putting them on a scanner.

OnTheFritz · Post by **OnTheFritz** » Wed Mar 01, 2006 5:48 pm

Larry, is this an Tunsgram based on what you're saying? I just paid $14 bucks on ebay the other day, and I couldnt pass up an Amperex labeled made in W. Germany tube at that price. It tested above new value.
It's got little square tag on the halo getter support with 12 stamped on it.
I also noticed the plates are rotated in orientation relative to a mullard I compared it to. Found that interesting.
Thanks for any info, and I'm not trying to highjack your threat RS, but this is interesting stuff.

OnTheFritz · Post by **OnTheFritz** » Wed Mar 01, 2006 5:50 pm

One more thing, there's no seam on the top of the bottle.

novosibir · Post by **novosibir** » Wed Mar 01, 2006 6:48 pm

Yes, that's a Tungsram!

When a tube has a tag inside with a number on it, then it's a Tungsram.
However not all Tungsrams have this tag inside.
Another indicator for a Tungsram is the Ring, welded on two bended posts, which is going through the upper mica.

With exception of some of the very early ones Tungsrams don't have a seam on top of the glass envelope.

Larry

OnTheFritz · Post by **OnTheFritz** » Wed Mar 01, 2006 6:54 pm

Thanks Larry