Yes I know.
SVETLANA manufactured ( and still ? ) electrical lamps the first years. But
when you start manufacture a new product there are always starting-up
problems that EIMAC with a long experience of the 3CX800 have solved now.
>From a badge of new manufactured tubes of the 88 family ( 3CX800, 8873,
8874, 8875, 8877......) only a certain percentage pass through final control
I heard. They are somewhat difficult to manufacture. Therefore they are more
expensive than other tubes.
Our problem with NEW ( NOT SURPLUS ) manufactured 3CX800 SVETLANA tubes is,
that we can not buy the tubes directly from SVETLANA in St. Petersburg only
one night away by a nice boat trip from Stockholm. Which should be much
cheaper than paying extra US customs. US owner and possibly the firm who is
selling in Sweden want their share also. The tubes that are sold surplus are
of course of very high quality as they were made to very tight Soviet
military and commercial standards but there is not the guarantee SVETLANA
provides for new tubes.
The tube world has really changed. I remember many years ago we found on a
Swedish Baltic beach a Russian made 813 with broken glass that some ship
radio operator had thrown into the sea. We actually did not now then that
you manufactured radio tubes that also at that time were exported.
Is this what should be called " Radio Glasnost "?
73s de Hans
----------
>Från: "UT7CT --> Anton Koval" <tony@uch.net>
>Till: "sm5ki" <sm5ki@algonet.se>, <amps@contesting.com>, "Steve Bookout"
<nj4f@erols.com>
>Ämne: Re: [AMPS] 4CX800's vs 4CX1600
>Datum: sön 27 feb 2000 09.07
>
>Svetlana has been on the market since the late 19th century. Quality is the
>main avantage I think...
>
>
>-----Èñõîäíîå ñîîáùåíèå-----
>Îò: sm5ki <sm5ki@algonet.se>
>Êîìó: UT7CT --> Anton Koval <tony@uch.net>; amps@contesting.com
><amps@contesting.com>; Steve Bookout <nj4f@erols.com>
>Äàòà: 27 ôåâðàëÿ 2000 ã. 9:38
>Òåìà: SV: [AMPS] 4CX800's vs 4CX1600
>
>
>>I have often been wondering why have the match problem of two 4CX800 tubes?
>>Would it not be better to always use one 4cx1600B tube? Of course the
>latter
>>tube will easier generate parasitics because its ability to amplify at
>>higher frequencies than the 4CX800.
>>
>>By the way, when is SVETLANA coming out with a direct replacement of the
>>3-500Z? There has been rumours of a 3-600Z tube, I heard. Since EIMAC
>>stopped manufacturing the tube it is very difficult to find anything
>similar
>> reliable on the market. I recently saw a HENRY 2K3 with the original
>>graphite 3-500Zs from early sixties in good shape.
>>
>>Why buy SVETLANA 3cx800s when EIMAC has a much longer manufacturing
>>experience? The very small price difference does not motivate buying
>>SVETLANA. Or is their quality higher?
>>
>>Is there, by the way, a reliable source for 3CX1000A7s with sockets?
>>
>>
>> Hans/SM5KI
>>
>>
>>----------
>>>Från: "UT7CT --> Anton Koval" <tony@uch.net>
>>>Till: <amps@contesting.com>, "Steve Bookout" <nj4f@erols.com>
>>>Ämne: Re: [AMPS] 4CX800's vs 4CX1600
>>>Datum: lör 26 feb 2000 23.41
>>>
>>
>>>
>>> Dear Steve,
>>>
>>> The 4CX800A (GU-74B) tube is rated at about 800 W, the 4CX1600
>(GS-23B)
>>>is rated at 1600 - 2000 W and works well over 1000 mHz.
>>> More technical data in English can be found at my site at
>>>http://www.qsl.net/ut7ct
>>> 73 !
>>>-----------
>>>UT7CT Ham Radio Devices - Fine range of CT
>>>Hand Keys & Paddles. Collectable keys. Svetlana
>>>PA tubes and much more at http://www.qsl.net/ut7ct
>>>tony@uch.net ICQ#19487420
>>>
>>>
>>>-----Èñõîäíîå ñîîáùåíèå-----
>>>Îò: Steve Bookout <nj4f@erols.com>
>>>Êîìó: amps@contesting.com <amps@contesting.com>
>>>Äàòà: 27 ôåâðàëÿ 2000 ã. 1:40
>>>Òåìà: [AMPS] 4CX800's vs 4CX1600
>>>
>>>
>>>>
>>>>Hello all,
>>>>
>>>>Anyone care to comment on what the advantages/disadvantages of either
>tube
>>>>arrangement in an amp, all other things being relatively equal.
>>>>
>>>>I would expect mainly the cost.
>>>>
>>>>73 de Steve, NR4M
>>>>
>>>>---------------------------------------------
>>>>Steve Bookout, NR4M (ex NJ4F)
>>>>Rapidan Data Systems
>>>>
>>>>'DX4WIN...The way logging programs should be!'
>>>>Free demo at http://www.erols.com/pvander
>>>>
>>>>--
>>>>FAQ on WWW: http://www.contesting.com/ampsfaq.html
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>>>>
>>>>
>>>
>>>
>>>--
>>>FAQ on WWW: http://www.contesting.com/ampsfaq.html
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>>>
>>>
>>
>
>
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