Hi Hsu - all too true!
It's a fine balance - and as ever a balance requires that we lean and correct
both ways!
73 OM
Dave G0OOIL
--- On Thu, 8/1/09, Hsu <hsu4qro@gmail.com> wrote:
From: Hsu <hsu4qro@gmail.com>
Subject: Re: [Amps] 3CX1500D7 quote
To: "DAVE WHITE" <mausoptik@btinternet.com>
Cc: amps@contesting.com
Date: Thursday, 8 January, 2009, 9:49 PM
Hi,Dave
Maybe you are right.But maybe you don't know, No
manufacturer are 100% good or bad.
In same factory,some products are
ver good but the others are very bad, and in another factory.
maybe it is opposite . The reason have two:the
first:,the craftsmanship, Chinese still like child just graduated from
elementary school in idustrial ability ,although he can built a spaceship
and nuke.The second,the price, the
second,Price, your importers often ask our
manufacturers,"cheaper and cheaper",
There are morethan 5 tube manufacturers in China,
the competition eachother are intensification. They have to use inexpensive
material and use un-skilled workers.
73!Hsu
----- Original Message -----
From:
DAVE
WHITE
To: Hsu
Cc: amps@contesting.com
Sent: Friday, January 09, 2009 4:58 AM
Subject: Re: [Amps] 3CX1500D7 quote
Hi Hsu - yes, most things are made in China these days
:-) But the problem is knowing which tubes are good and which ones
are no good. In my experience price isn't usually an
indicator. Like everywhere China has good and bad
manufacturers. Our problem here is knowing which we're dealing
with!
I bought some Chinese 572Bs which were great, some 3-500Zs
which were great, but also some 3-500Zs which were rubbish. But
they all cost about the same.
I think that although by and large
in this world you get what you pay for, various importers play dirty
tricks like passing off cheaper, poor quality kit as good quality.
The suppliers and producers come and go, so we don't have the same
sense
of stability, trust and guarantee that we do with established
suppliers.
If Eimac (or GE, or GM, or Marks and Spencer....)
chose a bad supplier in China, they'd put their reputation on the line
and their name would be dragged through the mud, especially on this
forum! We don't have that answerability from a supplier we can't
identify. Perhaps you do!
As a long-established,
trusted and respected company with whom I've had a relationship for
some
years now, I know who to speak to in Eimac for applicaitons advice, who
to bounce ideas off, who to get literature from, including reprints of
application bullein and amateur service newsletters articles up to 40
years old (for example the AS53 design considerations article I sent
out
on PDF to this group recently. It's the same people I first dealt
with 20 years ago - and that means a lot. That AS53 pdf was pulled
out of the library for me, scanned and sent out to me in half an hour,
because I have the right network. That's called service and is, I
suppose, part of what we pay fo in the price. They know that, even
though I'm just a low budget Ham operator who buys second-hand tubes
and
I never paid a cent directly to Eimac.
Sure, Eimac have to source
in China these days to remain remotely competitive, who
doesn't? But I know someone who's a buyer of electrical
goods for a major UK chain of retailers. He spends 75 percent of
his life in China and he has to put a tremendous effort into doing that
relationship-building, commercial contracting, pipeline management and
quality assurance - all to actually turn in a profit in a tougheconomic
climate. If Eimac (or another firm I trust) do that on my behalf
then I may regard it as a price worth paying - I know how bloody hard
my
friend works, how pissed off and frustrated he gets, and that's worth a
few bucks to me!
kind regards
Dave G0OIL
--- On
Thu, 8/1/09, Hsu <hsu4qro@gmail.com> wrote:
From:
Hsu <hsu4qro@gmail.com>
Subject: Re: [Amps] 3CX1500D7
quote
To: "DAVE WHITE" <mausoptik@btinternet.com>
Cc:
amps@contesting.com
Date: Thursday, 8 January, 2009, 7:34
PM
Actually some Eimac's tubes were OEM in China.
Hsu
----- Original Message -----
From: "DAVE WHITE" <mausoptik@btinternet.com>
To: "'Amps'" <amps@contesting.com>; "Peter
Voelpel" <df3kv@t-online.de>
Sent: Thursday, January 08, 2009 8:47 PM
Subject: Re: [Amps] 3CX1500D7 quote
> Hi Peter
>
> Well I think you must have had more luck with the Chinese tubes than I
have. Maybe they've improved.
>
> I find it's a very hit-and-miss process with Chinese tubes - either
they're great or they're hopeless and in some cases don't even fit
the socket.
>
> I suppose that as
the industry matures in China, we'll start to see
branded tubes and we'll know which factories produce the good stuff and
which don't!
>
> In the end, I came by a few Eimac 3CX3000F7 pulls very cheaply at Dayton
so used one of those for my big HF amp instead of - as I'd planned - a pair
of GS35Bs
>
> Looking at the way the UK Labour Government has trashed the economy and
the subsequent Sterling fall against just about every currency (30% against USD
in the last 6 months, parity with EUR) I'm glad I'm not in the market
for buying big tubes right now.
>
> Maybe I should have hung on to my box of GS35Bs - I could have doubled the
UK's export figures!
>
> cheers
>
> Dave G0OIL
>
> --- On Thu, 8/1/09, Peter Voelpel <df3kv@t-online.de> wrote:
> From: Peter Voelpel <df3kv@t-online.de>
> Subject: Re: [Amps] 3CX1500D7 quote
> To:
"'Amps'" <amps@contesting.com>
> Date: Thursday, 8 January, 2009, 12:22 PM
>
> 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
>>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
>
http://lists.contesting.com/mailman/listinfo/amps
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|