[Amps] Dedicated RF / tube query

[Richard Solomon]

Economics 101 ...

No demand, no supply.

No supply, no demand.

73, Dick, W1KSZ

On Mon, Jul 30, 2012 at 9:33 AM, Carl <km1h at jeremy.mv.com> wrote:
> Which will be discontinued as soon as their lone MRI OEM goes away.
> Ameritron is not even in their equation.
>
> They have gone thru the 1200A7, D7 and are now on the Z7. Sooner or later
> even old Martin F Jue will wake up.
>
> Carl
> KM1H
>
>
> ----- Original Message ----- From: "Richard Solomon" <dickw1ksz at gmail.com>
> To: <amps at contesting.com>
> Sent: Sunday, July 29, 2012 11:39 PM
> Subject: Re: [Amps] Dedicated RF / tube query
>
>
>> Or better yet, one or two 3CX1200's.
>>
>> 73, Dick, W1KSZ
>>
>> On Sun, Jul 29, 2012 at 8:26 PM, Leigh Turner
>> <invertech at frontierisp.net.au> wrote:
>>>
>>>
>>> Hi Dan,
>>>
>>> Not that it matters much, but are you absolutely certain that the current
>>> 3CX800/3CPX800A7 tube products sourced from CPI are not of Chinese origin
>>> and instead supplied to CPI under an OEM outsourcing supply agreement
>>> with
>>> bespoke Eimac labelling / badging done by the China tube factory?
>>>
>>> Also I'm curious about the rationale for using two little puppies in
>>> parallel instead of a single 3CX1500A7/8877 tube...it sounds like you
>>> have
>>> given this key decision a lot of thought?
>>>
>>> Leigh
>>> VK5KLT
>>>
>>>
>>> -----Original Message-----
>>> From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On
>>> Behalf Of Dan Simmonds
>>> Sent: Monday, 30 July 2012 9:30 AM
>>> To: garyk9gs at wi.rr.com
>>> Cc: amps at contesting.com
>>> Subject: Re: [Amps] Dedicated RF
>>>
>>> Gary, this is a myth, quite frankly, saying the days of this tube are
>>> numbered. Do you have facts to back this up?
>>>
>>> >From experience I'll share with you that I can cut a Purchase Order to
>>> Eimac (CPI) tomorrow for any number of 3CPX800 tubes and receive them
>>> about 90 days later. No-one in Palo Alto, CA has mentioned anything to
>>> me about stopping production of this model.
>>>
>>> I'm trying hard not to turn this into an advertisement, but for
>>> comparison, we sell the identical tubes you mention (CPI / Eimac) for
>>> under $700 new - and my invoiced cost per-tube from CPI is well below
>>> this.
>>>
>>> Genuine Eimacs - not Chinese, etc.
>>>
>>> Dan  KK3AN
>>>
>>>
>>>
>>> Gary K9GS wrote:
>>>
>>>> Well, my point is that I'd be happy to see some
>>>> experimentation/development in SS amps, instead of another commercial
>>>> amp using hideously expensive tubes.  Let's face it, the days of the
>>>> 3CX800 are numbered.  Why introduce a commercial product with expensive
>>>> and, potentially in the near future, hard to get tubes?  Other than a
>>>> handful of ham radio amplifiers, is there any commercial application for
>>>> 3CX800s other than replacement parts?
>>>>
>>>> If you're going to introduce a tube amp at least pick some reasonably
>>>> priced tubes.  The Alpha website lists a pair of 3CX800's at $2100.00.
>>>> That's almost 1/3 of the selling cost of this amp.
>>>>
>>>
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>>>
>>>
>>>
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>>
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>