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Author Topic: Is the Eimac 3CX1200 being discontinued ?  (Read 4472 times)
WR1H
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Posts: 30




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« on: April 08, 2006, 03:37:42 PM »

I have been told by several commercial communication dealers, that I deal with proffesionally, that the 3CX1200 is being discontinued. Several Military units that they service will be marked for replacement by the end of 2008 due to this.

Has anyone heard of anything similar ?
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KB1LKR
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Posts: 1898




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« Reply #1 on: April 08, 2006, 04:22:19 PM »

You might contact the Eimac division of Communications & Power Industries (CPI) in California directly  -- Applications Engineering: 650-846-3582 or even Sales: 800-414-8823 and enquire as to its future production status.

For what it's worht they still show it in their General, Communications, Ham Radio, and Industrial Heating catalogs on line, though not in theur Defense datalog.
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WIRELESS
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« Reply #2 on: April 10, 2006, 01:00:03 PM »

Eimac or Richardson (Eimacs sole authorized distributor) will probably never say when in the future they may discontinue a tube.  Richardson Electronics orders all production for yearly Eimac stock, so if they don't order any, Eimac won't make any.

Eimac is suffering from the same problems as everyone else in a global economy.  If something doesn't sell, they quit making it.  Eimac makes over 80% of their revenue from digital tv tubes made exclusively for that market.  Eimac never made a lot of money from ham customer amps and probably make even less now.

I like transistor amps and I think tubes are really going through a very slow death.  I use an amp I built using 28 volt bipolar transistors.  It has worked since 1993.  I couldn't care less if every tube gets discontinued.  If my amp blows a pair of rocks, it costs me $80.  Blow up an 8877, and people cry.
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KD5MHQ
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« Reply #3 on: July 13, 2015, 02:20:29 PM »

Only a lid appliance ass**e would make a comment like this:

I like transistor amps and I think tubes are really going through a very slow death.  I use an amp I built using 28 volt bipolar transistors.  It has worked since 1993.  I couldn't care less if every tube gets discontinued.  If my amp blows a pair of rocks, it costs me $80.  Blow up an 8877, and people cry.
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W9GB
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Posts: 3021




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« Reply #4 on: July 13, 2015, 02:27:02 PM »

Bob -

This eHam.net Thread has been DEAD (no further comments) since April 2006.

For the record, the 3CX1200 ceramic RF tube is still manufactured by Eimac (2015),
in 3 versions: A7 (Ameritron); D7 (Henry Radio); Z7 (Commercial/Military, Ameritron).

The cheapest tube, earlier in 2015, was the Z7 version due to larger market.

« Last Edit: July 13, 2015, 02:36:48 PM by W9GB » Logged
KD5MHQ
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« Reply #5 on: July 13, 2015, 03:06:09 PM »

Ok, thanks for that info.. I couldn't find the thread date.
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W8JI
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« Reply #6 on: July 13, 2015, 04:32:45 PM »

And the tube is still being made. Smiley
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KM1H
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Posts: 1243




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« Reply #7 on: July 13, 2015, 06:46:35 PM »

Quote
And the tube is still being made.

There were 3 versions of the 3CX1200 and made in such low quantities that sticker shock awaits you.
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W1QJ
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« Reply #8 on: July 13, 2015, 08:20:50 PM »

I have a tested good one (full power output) for sale if anyone needs one or wants a spare.  Contact me at gudguyham@aol.com if interested.  Lou
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W9GB
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Posts: 3021




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« Reply #9 on: July 13, 2015, 09:03:56 PM »

Lou,

Is the tube an A7 ?  3CX1200A7
---
I can check with a local DXer that had the Ameritron AL-1200 amplifier.
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W1QJ
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« Reply #10 on: July 13, 2015, 11:51:35 PM »

It is an A7 and I have tested it in my AL-1200 and it works like new.  They are very rugged tubes as you probably know.  Lou
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KM1H
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« Reply #11 on: July 15, 2015, 01:46:52 PM »

The A7 was the original one used, then the U7 disaster, and currently the Z7
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