Econo is NOT rebuilding 3CX1200A7 or Z7.
I called them about a month ago. They are still rebuilding 3CX1000A7s
however $..... 800 ish
Jack N8DX
On Tue, Jan 25, 2022 at 12:00 PM <amps-request@contesting.com> wrote:
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> Today's Topics:
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> 1. Re: 8877 (Rob Atkinson)
> 2. Re: 8877 (gudguyham@aol.com)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 25 Jan 2022 06:00:56 -0600
> From: Rob Atkinson <ranchorobbo@gmail.com>
> To: "amps@contesting.com" <amps@contesting.com>
> Subject: Re: [Amps] 8877
> Message-ID:
> <CALWD7Z5OvPJFm3e2AATVGGLD=
> 0vEiMTj_V4fC72J5KxSEy-n8g@mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> Thanks to Doug WA1TUT for the memory of Scientific Radio. Harris and
> S.R. made continuous duty power amplifiers using 3-500s or 3-1000s
> that dwarfed the ham gear.
>
> Thanks to Paul W9AC for that Dick Ehrhorn post. I didn't know about
> the 8877 gk short problem either.
>
> > When did they get so expensive?
>
> Don't know about when exactly, but a few factors are the cause. In
> addition to the aforementioned inflation, you have transportation
> costs of parts, transformer costs (copper), raw material costs
> (steel), other h.v. parts costs, and reduced demand. I have no doubt
> fewer tube amplifiers are being sold now which pushes per unit parts
> and manufacturing costs up. More disturbing than the vanishing tube,
> is the looming disappearance of other h.v. parts such as doorknobs,
> 450 v. electrolytics, and ceramics such as band switches and feed
> throughs. Anything not needed for low v. solid state will become
> harder to find.
>
>
>
> 73
> Rob
> K5UJ
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 25 Jan 2022 12:08:06 +0000 (UTC)
> From: "gudguyham@aol.com" <gudguyham@aol.com>
> To: Kim Elmore <cw_de_n5op@sbcglobal.net>, AB2E Darrell
> <ab2e@hotmail.com>
> Cc: <amps@contesting.com>
> Subject: Re: [Amps] 8877
> Message-ID: <1420506034.1073582.1643112486371@mail.yahoo.com>
> Content-Type: text/plain; charset=UTF-8
>
> 3cx1200 tubes are now being rebuilt by Econco. ?Last I heard it was $895
> for the rebuild. I don?t know how good of a job they do. ?Many don?t know
> that service is available however they don?t do 8877 rebuilding.
>
>
> Sent from the all new AOL app for iOS
>
>
> On Monday, January 24, 2022, 10:55 PM, Kim Elmore <
> cw_de_n5op@sbcglobal.net> wrote:
>
> Fortunately I have a spare 3CX1200A7!
>
> Kim N5OP
>
> > On Jan 24, 2022, at 9:48 PM, AB2E Darrell <ab2e@hotmail.com> wrote:
> >
> > ?
> > Hi Kim,
> > Better sit down then LOL.
> > P17 of the Feb QST, the AL-1200 w/Eimac tube is $6000 !
> > Guard that tube!
> > 73 Darrell AB2E
> >
> >
> > From: Amps <amps-bounces@contesting.com> on behalf of Kim Elmore <
> cw_de_n5op@sbcglobal.net>
> > Sent: Monday, January 24, 2022 10:40 PM
> > To: amps@contesting.com <amps@contesting.com>
> > Subject: Re: [Amps] 8877
> >?
> > Holy high voltage!!! $7k for an AL1500 with an 8877?! I have an AL1200
> that I got cheap several years ago.
> >
> > It needed some work and in the process I installed Ameritron?s QSK-5 PIN
> diode QSK switch. The AL1200 isn?t as easy to drive as the 1500, so I
> changed a primary tap, added more filter capacitors to the string and so?
> increased B+ to about 4 kV no-load. A few other changes followed but
> nothing crazy. It?s much easier to drive, now. Overall I guess I have less
> than $2k in it. But even that amp is now $6k!!
> >
> > The last time I paid attention, the AL1200 was about $4k and the AL1500
> was a bit less depending on the tube. But I haven?t been monitoring the
> pricing. When did they get so expensive?
> >
> > Kim N5OP
> >
> >
> >
> >
> >
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> End of Amps Digest, Vol 229, Issue 26
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