I bought 10+ GS-35B at 40.-DM in 1999.
Most have been given away to ham friends shortly after for their projects,
others were used to convert linears.
I should have bought 100 that time as well as GU-78 which were around 80.-
DM at that time, sockets cost 40.-DM then.
With Chinese tubes my experience is very good so far.
I converted a couple of TL-922 and L4B to Chinese 3-500Z, those are really
nice tubes, much better then the Eimac.
A factory nearby is using around 400 8877 from China in their generators for
glass coating, they paid 450 US$ each.
The tubes are used at voltage regulators for magnetrons and replaced Amperex
4-400B which went out of production 4 years ago.
Two are in use at ham friends now for about 3 years, those were pulled after
about 1000 hours.
Grid current is still less then with the Eimacs at same output. Since the
tubes are very reliable, I could not obtain additional pulls.
>From all the 400 tubes none was replaced so far.
73
Peter
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
Behalf Of DAVE WHITE
Sent: Donnerstag, 8. Januar 2009 12:15
To: Tony Brock-Fisher; Amps@contesting.com; Carl
Subject: Re: [Amps] 3CX1500D7 quote
"Id take an 8877 over a Ruskie any day"I guess it depends on price. In my
experience the original Russian tubes were pretty good, though obviously not
as good as Eimac tubes. However, if you can buy GS35Bs for the price of a
8877 (and that was the price in Europe last time I looked, a few years
ago)......
I've heard a few bad reports of Russian tubes recently. The original ones we
got in the early 1990s were made for military use, so had to be to a certain
standard. The new ones appear increasingly to be built to a price.
I'd certainly avoid the Chinese tubes, since these are just churned out for
export and many I have seen have been of questionalble quality.
The GS35Bs sold like hot cakes in Germany when they first became known to
European VHF/UHF amateurs via articles in Dubus etc. I remember buying a
huge box full of them at Weinheim in about 1994-ish. They then sat around
in my shack for several years until I realised that I'd never use them, then
I took them back to the same fleamarket a couple of years later and sold
them for five times the price. Now I wish I'd kept them, of course! Isn't
that always the way? :-)
But think on.....one day Eimac will go the same way as all the other
manufacturing sector firms that disappeared due to cheaper, often inferior
foreign competition, and then I think we'd be sorry. Famous,
long-established names are disappearing from Britain like you wouldn't
believe.
cheers
Dave G0OIL
--- On Thu, 8/1/09, Carl <km1h@jeremy.mv.com> wrote:
From: Carl <km1h@jeremy.mv.com>
Subject: Re: [Amps] 3CX1500D7 quote
To: "Tony Brock-Fisher" <barockteer@aol.com>, Amps@contesting.com
Date: Thursday, 8 January, 2009, 3:30 AM
Id take an 8877 over a Ruskie any day if I was doing a swap.
Carl
KM1H
----- Original Message -----
From: "Tony Brock-Fisher" <barockteer@aol.com>
To: <Amps@contesting.com>
Sent: Wednesday, January 07, 2009 10:06 PM
Subject: Re: [Amps] 3CX1500D7 quote
> OK, so how about 3CX1200A7 at $1139? ('Special Price' at RF Parts)
>
> ...or, a GS-35B at $129 ('Buy It Now') !!
>
> (No wonder the AL-1200's are getting retubed Russian style!)
>
> -Tony, K1KP
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
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