Jd. wrote:

Uzytkownik "Mark Harriss" napisal w
wiadomosci ...

Anyone heard of tubes made in Poland?.

Yes. I've used many of them

I got my box of valves in the mail today. While
all are of the same type internally they are mostly
labelled "Made in Poland" with a few "Tronix",
"Brimar", "Made in USA" and "Made in
W. Germany" thrown in for good measure.

May be You have some relabelled tubes...

They look good in terms of construction
but unless I can find a Polish valve manufacturer

1. There was a big factory in Warsaw, called "Zaklady Wytworcze Lamp
Elektronowych".
Tubes were marked with ZWLE, Telam, Polam and Polamp brands.
See http://www.mif.pg.gda.pl/homepages/frank/brand.html for logo.
ZWLE produced mercury discharge and fluorescent tubes also, and bancrupted
in early 90's.

2. Second (smaller) factory - "Dolam" was located in Wroclaw, and produced
tubes in smaller lots - octal tubes, some soviet types (but marked in
latin letters !). Dolam was also producer of Nixie displays.
See http://www.unitra-dolam.pl/index_en.htm for their contemporary product
profile.

3. Third producer - "Lamina" - located in Piaseczno, produced tubes for
military/industry/broadcasting use (e.g. latin marked GU-50).
Lamina still exists: http://www.lamina.com.pl/Lamina/myweb7/products.htm

Some of Polish tubes were also marked with Unitra (trade company) logo.


Thanks for the information Jaroslaw, I'll take a look at the websites
and see what they have. Thanks

Mark Harriss