[Amps] 3CX1500D7 quote

Thu Jan 8 16:49:50 EST 2009

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 at 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 at gmail.com> wrote:

          From: Hsu <hsu4qro at gmail.com>
          Subject: Re: [Amps] 3CX1500D7 quote
          To: "DAVE WHITE" <mausoptik at btinternet.com>
          Cc: amps at 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 at btinternet.com>To: "'Amps'" <amps at contesting.com>; "PeterVoelpel" <df3kv at t-online.de>Sent: Thursday, January 08, 2009 8:47 PMSubject: Re: [Amps] 3CX1500D7 quote> Hi Peter> > Well I think you must have had more luck with the Chinese tubes than Ihave. Maybe they've improved.> > I find it's a very hit-and-miss process with Chinese tubes - eitherthey're great or they're hopeless and in some cases don't even fitthe socket.> > I suppose that as
 the industry matures in China, we'll start to seebranded tubes and we'll know which factories produce the good stuff andwhich don't!> > In the end, I came by a few Eimac 3CX3000F7 pulls very cheaply at Daytonso used one of those for my big HF amp instead of - as I'd planned - a pairof GS35Bs> > Looking at the way the UK Labour Government has trashed the economy andthe subsequent Sterling fall against just about every currency (30% against USDin the last 6 months, parity with EUR) I'm glad I'm not in the marketfor buying big tubes right now.> > Maybe I should have hung on to my box of GS35Bs - I could have doubled theUK's export figures!> > cheers> > Dave G0OIL> > --- On Thu, 8/1/09, Peter Voelpel <df3kv at t-online.de> wrote:> From: Peter Voelpel <df3kv at t-online.de>> Subject: Re: [Amps] 3CX1500D7 quote> To:
 "'Amps'" <amps at 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 theirprojects,> others were used to convert linears.> I should have bought 100 that time as well as GU-78 which were around80.-> 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 arereally> nice tubes, much better then the Eimac.> A factory nearby is using around 400 8877 from China in their generatorsfor> glass coating, they paid 450 US$ each.> The tubes are used at voltage regulators for magnetrons and replacedAmperex> 4-400B which went out of production 4 years ago.> Two are in use at ham friends now for about 3 years, those were
 pulledafter> 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 at contesting.com [mailto:amps-bounces at contesting.com] On> Behalf Of DAVE WHITE> Sent: Donnerstag, 8. Januar 2009 12:15> To: Tony Brock-Fisher; Amps at contesting.com; Carl> Subject: Re: [Amps] 3CX1500D7 quote> > "Id take an 8877 over a Ruskie any day"I guess it depends onprice. > In my> experience the original Russian tubes were pretty good, though obviouslynot> 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 originalones> we> got in the early 1990s were made for military use, so had to be to acertain> standard. The new ones appear increasingly to be built to a price.> > I'd certainly avoid the Chinese tubes, since these are just churnedout 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 usethem,> 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, ofteninferior> foreign competition, and then I think we'd be sorry. Famous,> long-established names are disappearing from Britain like youwouldn't> believe.> > cheers> > Dave G0OIL> > > --- On Thu, 8/1/09, Carl <km1h at jeremy.mv.com> wrote:> From: Carl <km1h at jeremy.mv.com>> Subject: Re: [Amps] 3CX1500D7 quote> To: "Tony Brock-Fisher" <barockteer at aol.com>,> Amps at 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 at aol.com>> To: <Amps at 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 RFParts)>> >> ...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 at contesting.com>> http://lists.contesting.com/mailman/listinfo/amps>>> _______________________________________________> Amps mailing list> Amps at contesting.com> http://lists.contesting.com/mailman/listinfo/amps> _______________________________________________> Amps mailing list> Amps at contesting.com>
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