[Amps] 4cx800a

[Roger]

Carl wrote:
> By available I meant from the manufacturer, uh...Russian military stores.
That's why I called them "orphans".<:-))
BTW, do you know the difference, if any, between an FU728B and FU728F?

73

Roger (K8RI)
>
> Carl
>
>
> ----- Original Message ----- From: "Roger" <sub1 at rogerhalstead.com>
> To: "Carl" <km1h at jeremy.mv.com>
> Cc: <johndtate at post.com>; <amps at contesting.com>; "Alek Petkovic" 
> <vk6apk at bigpond.com>
> Sent: Wednesday, February 17, 2010 8:41 PM
> Subject: Re: [Amps] 4cx800a
>
>
>>
>>
>> Carl wrote:
>>> When was the last time the 4CX1600B was available...10-15 years ago??
>>>
>> They are currently available....Alpha is selling off what few they 
>> had at a fairly reasonable price... Oops...They had them two weeks 
>> ago, but they are no longer listed.   Those were the last ones I knew 
>> of.
>>
>> As I said, they had a pretty good price...<:-)) Which is fine if you 
>> get a couple of spares which is always a good idea when building an 
>> amp that uses tubes that are orphans.
>>
>> 73
>>
>> Roger (K8RI)
>>> Carl
>>>
>>>
>>> ----- Original Message ----- From: "Alek Petkovic" <vk6apk at bigpond.com>
>>> To: <johndtate at post.com>; <amps at contesting.com>
>>> Sent: Wednesday, February 17, 2010 5:04 PM
>>> Subject: Re: [Amps] 4cx800a
>>>
>>>
>>>
>>>> Ha ha. A production run of 4CX1600Bs would be real handy, sometime 
>>>> in the near future.
>>>>
>>>> Alek. VK6APK
>>>>
>>>> At 05:44 AM 18/02/2010, johndtate at post.com wrote:
>>>>
>>>>> Intersting thread.  If you go to http://www.svetlana-tubes.com/ and
>>>>> look at the site, they indicate the following ceramic tubes:
>>>>>
>>>>> 3CX400A7
>>>>> 3CX800A7
>>>>> 3CPX800A7
>>>>> 4CX250B
>>>>> 4CX250R
>>>>> 4CX350A
>>>>> 4CX400A
>>>>> 4CX800A
>>>>> 4CX1500A
>>>>> 4CX1600B
>>>>> 4X150A
>>>>> 5CX1500A
>>>>> 8560AS
>>>>>
>>>>> Whether they are still producing them or not I don't know but it 
>>>>> seems
>>>>> to imply they do.  For the heck of it I also looked at the glass 
>>>>> tubes
>>>>> and they no longer list the 572B there anymore.
>>>>>
>>>>> 73, KX5JT John
>>>>>
>>>>>
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>>>>
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>
>