Hi!
Chinese 3-500Z is good.is was made in a Military vcuum tube factory in
Hunan Province China.my friend use Power AMP with 3 Chinese 572Bs for three
years,it is goods too.
Now,there are few tube factory left in China.our city have one.it produces
best 833 in China,and some very big tube(for example, FU433,out power is
100KW).
73! Xu BD2RH
----- Original Message -----
From: "Steven Moore" <wd0ct@networksplus.net>
To: <amps@contesting.com>; "Bill Turner" <w7ti@dslextreme.com>
Sent: Wednesday, July 04, 2001 6:50 AM
Subject: Re: [AMPS] 3-500Z by Pro-tek
>
> I have several friends using the Chinese 3-500 tubes from RF Parts with
good
> results. One of them has repaired several 3-500 amps and did have one of
> these Chinese tubes go bad but they honored the warranty.
>
> After seeing the luck these guys had with late production Eimac 3-500
> tubes--just about anything else looks good.
>
> 73 Steve wd0ct
> ----- Original Message -----
> From: "Bill Turner" <w7ti@dslextreme.com>
> To: "Marcel Jorba" <mjorba@ingelan.com>; <amps@contesting.com>
> Sent: Tuesday, July 03, 2001 5:27 PM
> Subject: Re: [AMPS] 3-500Z by Pro-tek
>
>
> >
> > I bought one Chinese-made tube from RF Parts. They check each tube
> > individually when they receive it and they guarantee them. Mine has
> > been fine so far. Some Chinese brands are no good, but RF Parts
> > claims they know which ones are good.
> > 73, Bill W7TI
> > _________________________________________________________
> >
> > ----- Original Message -----
> > From: "Marcel Jorba" <mjorba@ingelan.com>
> > To: <amps@contesting.com>
> > Sent: Tuesday, July 03, 2001 12:13 PM
> > Subject: [AMPS] 3-500Z by Pro-tek
> >
> >
> > >
> > > Hi,
> > >
> > > I need to replace three 3-500Z (or 3-500ZG) tubes. I have been
> > surfing the web an I have find 2 nice alternatives:
> > >
> > > 1.- Buy to RF parts their chinese tubes
> > > 2.- Buy to dandcelectronics the 3-500Z the resell. They offer a nice
> > price for these Pro-Tek tubes but I don't have any idea about these
> > tubes. Anyone has any experience or
> > > reference?
> >
> >
> >
> > --
> > FAQ on WWW: http://www.contesting.com/FAQ/amps
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> > Problems: owner-amps@contesting.com
> >
> >
>
>
> --
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> Submissions: amps@contesting.com
> Administrative requests: amps-REQUEST@contesting.com
> Problems: owner-amps@contesting.com
>
>
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