Amperex stopped glass tube production.
A glass factory in Northern Germany were using 4-400B tubes from them as
voltage regulators for there magnetron generators.
When the tubes got unavailable they diverted to 8877, just needed to
exchange the socket.
For about 3 years they use now Chinese 8877 in about 50 generators without
any trouble, unfortunately for that reason I could not obtain pulls so far.
(but a couple of 4-400B with sockets and chimneys).
They paid 400 Euro/tube in that quantity.
73
Peter
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
Behalf Of Carl
Sent: Freitag, 25. Juli 2008 15:28
To: chasm@texas.net; Amps Amps
Subject: Re: [Amps] Tube sources
Svetlana is still made in Russia or one of its ex republics AFIK.
Amperex/Thompson production Im not sure about. All other glass tubes are
Chinese no matter the brand name, no more USA. Taylor has a big logo with
San Marcos CA under it. Then on the side is the date code with PRC right
under it looking like part of the code. A real con job from RF Parts.
Expect to see Chinese TX tubes become quite scarce. Its more profitable to
build for the audiophools.
Better start thinking about building 810 or 211 amps!
My doc is at the bottom of the druggie reps popularity list, he hates
writing scrips. Just as I hate getting them so we have had an excellent
relationship for many years. Exercise, weights and diet have kept me
attractive to all those hotties I see. Well....healthy anyway!!
Carl
KM1H
----- Original Message -----
From: <chasm@texas.net>
To: "Amps Amps" <amps@contesting.com>
Sent: Friday, July 25, 2008 1:19 AM
Subject: [Amps] Tube sources
>> Ive no experience with the Chinese version Mike but I believe that is
>> what
>> Ameritron uses now and sells direct at a much lower price.
>> When needed for a job I stick with Eimac 3CPX or Y-xxx medical pulls of
>> near
>> full output. Carl KM1H
>
>
> idle curiosity...
>
> are any tubes being made in the USA now?
> or anywhere besides China?
>
> I would really like to get a spare set of 3-500Zs but I am not under
> the impression they are used in medical equipment.
>
> since I am a 65yr old with self diagnosed ADD <G>, I have found it
> interesting that some trials are being run on RF anti tumor therapy in
> the Houston Med Ctr - at about 40m frequencies. My oncologist at
> MDACC seems to think it is all foolishness but then, if it does not
> involve getting his patients into Pharm trials, he is not interested.
>
> anyway, am still curious about where tubes are being made today.
> My impression is that they are ALL Chinese and are rebranded Taylor,
> Svetlana, Marshall, whatever. Hope that I am wrong.
>
> 74 de chas/k5dam
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
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