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RE: [TCML] Klystron use?
Miles,
In my opinion, your klystron is useless for Tesla Coil applications. As
others have stated, Klystrons are designed for frequencies orders of
magnitude higher than that of even the smallest Tesla Coil.
Secondly, from your specs, the max power it can handle is 350 volts x .05
amp = 17.5 watts -- definitely not enough to power a Tesla Coil. It was
probably used as a local oscillator in the receiving portion of a radar set.
--Steve Y.
-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of miles waldron
Sent: Saturday, June 13, 2009 7:43 AM
To: 'Tesla Coil Mailing List'
Subject: RE: [TCML] Klystron use?
Thanks very much, but this link seems to be one of those pay for the article
sites. Humm, I really need something that I can read up on to "stimulate"
thoughts of a tesla application. It will be hard to glean any useful
information by reading 10% of an article.
buildingthefuture@xxxxxxxxxxxxxxxxx
-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of Stephen Hiscock
Sent: Friday, June 12, 2009 6:38 PM
To: Tesla Coil Mailing List
Subject: Re: [TCML] Klystron use?
This might be a start : http://www.tpub.com/content/fc/12404/index.htm
scroll down to the basic radar systems and you will see a heading called
Klystrons
http://www.tpub.com/content/fc/12404/css/12404_32.htm
They give some basic understanding and state that Klystrons can be
understood better by looking at Triode resonant amplifiers with
restricted bandwidth and increased gain.. - they have a few schematics
to view online there.....
There is quite a bit involved - this site might put you off firing one
up (just the cooling schemes are quite involved alone) - but just like
putting a ship inside a bottle - its worth the effort some would say..
Good Luck.
Stephnen
miles waldron wrote:
> Anybody got some schematcs or ideas on how to fire up the soviet e-bay
> klystron K-166(Gamma)3 9102??, seems like part of some resonant cavity
> gizmo.
>
> Filament 6.3v 0.5-1.3A
> Resonant voltage 350V
> Negative repeller voltage -50 to -350V
> Repeller circuit not more than 100kohm
> Load SWR 1.2 Max
> Cathode current 10ma to 50ma
> Frequency stabilization time 5min max
>
>
> buildingthefuture@xxxxxxxxxxxxxxxxx
>
>
> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of gary350@xxxxxxxxxxxxx
> Sent: Thursday, June 11, 2009 6:39 PM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] Klystron use?
>
>
> Why try to lower the frequency of the Klystron how about increasing
> the frequency of the TC.
>
> Or better yet, how about frequency modulation where the Klystron is
> the carrier wave.
>
>
>
>
>
>
> -----Original Message-----
>
>> From: Stephen Hiscock <stephenhiscock@xxxxxxxxx>
>> Sent: Jun 10, 2009 10:51 PM
>> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
>> Subject: Re: [TCML] Klystron use?
>>
>> I was meaning "Could" in the broadest possible sense.. Klystrons are
>> generally "Tuned" and calibrated where they are made and usually come
>> with a calibration sheet listing parameters and settings because they
>> don't work very well at other freqs etc.. But "possibly" someone could
>> design one to work at lower freqs. Just like people use high heel shoes
>> as hammers - they work - but its not generally a good idea!
>> If operated in conditions they are not designed to operate at - then
>> they will be hopelessly inefficient and would likely not even work at
all.
>> If you don't have the original calibration sheets etc that came with
>> them, then you might never get them to work properly anyway.
>> Also don't forget that you wouldn't want to plug it in without your non
>> ferrous (or non magnetic tools) - peoples fingers have been know to get
>> a little pinched in the big ones when the tool slams into the machine -
>> They have BIG magnetic fields to contain the plasma...
>>
>> But to explain my "could"
>> IF you could obtain two nearly identical Klystrons that operated very
>> near each other in freq - then you have a good starting area. No two
>> klystrons are ever the same - its just the nature of the beast. And
>> considering the lowest practical frequency of klystrons in current
>> use is about 300MHz - which is 1000 times the freq range of a Tesla
>> coil
>> - then you have a little bit of work ahead of you - but who ever said
>> practical limits aren't meant to be broken... after all we fly around in
>> heavier than air flying machines now....
>> besides - you are using them to make sparks, not efficient TV broadcasts
>> on satellites etc.
>> The beauty of Klystrons is their fine Amplitude and Phase control - if
>> you could get them operating close enough to each other so that one was
>> operating at say 300.1Mhz and the other at 300.6MHz - then you could
>> create a beating frequency of 500kHz - which is a good freq for a Small
>> Tesla coil...
>>
>> I'll leave the rest up to you.....
>>
>> Hey these aren't reflex Klystrons are they? - Hmmm "Homeland
>> Security" might pay you a visit if they are
>>
>> Stephen
>>
>> jimlux wrote:
>>
>>> Stephen Hiscock wrote:
>>>
>>>> Well that's exactly what Klystrons are used and designed for.. They
>>>> are designed as amplifiers to drive resonators or transmitters etc
>>>> that allow you to boost a signal while controlling the phase,
>>>> amplitude and frequency etc... They could be used to drive telsa
>>>> coils - but are usually designed to operate in the hundreds of
>>>> megahertz or gigahertz range... but like any thing they could be
>>>> adapted for other uses....
>>>>
>>>> Stephen
>>>>
>>>>
>>> Well...
>>>
>>> Klystrons (like most any amplifier) can be either oscillators or
>>> amplifiers, depending on the circuit it's in.
>>>
>>> I can't imagine Klystron being adapted to work at lower frequencies
>>> than it's design frequency, except maybe if you use the control grid
>>> (if it has one) to turn the beam on and off, and use it as a "real
>>> low frequency" switch.
>>>
>>> You could also use them as doorstops, which is "another use", after
>>> all. _______________________________________________
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