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-   -   About exciting passive circuits and magnetrons. (https://www.radiobanter.com/homebrew/147801-about-exciting-passive-circuits-magnetrons.html)

Jonatan November 7th 09 02:47 PM

About exciting passive circuits and magnetrons.
 

You maybe knowing your microwave's inner workings.
It uses a microwave valve which consists of LC chambers of 2.4 GHz.
And they are excited with a dc hv of must be 50 Hz.

Now we have two possibilities, the output is in trains or constant rf output.

Who of the hams here can messure that output ?


brian whatcott November 7th 09 06:46 PM

About exciting passive circuits and magnetrons.
 
Jonatan wrote:

You maybe knowing your microwave's inner workings.
It uses a microwave valve which consists of LC chambers of 2.4 GHz.
And they are excited with a dc hv of must be 50 Hz.

Now we have two possibilities, the output is in trains or constant rf
output.

Who of the hams here can messure that output ?

The transformer has a core bypass to handle the reactive load. There is
a power rectifier and a capacitor to (somewhat) smooth the 1KV output.
Still, magnetrons are sensitive to the cathode volts they see, so the
output varies somewhat in frequency and amplitude at line frequency.

Brian W

Jonatan November 8th 09 09:56 AM

About exciting passive circuits and magnetrons.
 

"Jonatan" wrote:

You maybe knowing your microwave's inner workings.
It uses a microwave valve which consists of LC chambers of 2.4 GHz.
And they are excited with a dc hv of must be 50 Hz.

Now we have two possibilities, the output is in trains or constant rf output.

Who of the hams here can messure that output ?


So like a Teslacoil one is able to generate 2.4 GHz with strikes of only 50 Hz ?
How can the rf waves prolong so long ? A few cycles of 2.4 GHz o.k. but
it looks like almost a continues wave.
You try that on sw or mw. It should work even better there.


Natanoj November 8th 09 08:20 PM

About exciting passive circuits and magnetrons.
 

"Jonatan" wrote in message
...

You maybe knowing your microwave's inner workings.
It uses a microwave valve which consists of LC chambers of 2.4 GHz.
And they are excited with a dc hv of must be 50 Hz.

Now we have two possibilities, the output is in trains or constant rf
output.
Who of the hams here can messure that output ?


The messure of output in trains rf output with a dc hv of must be 50 Hz into
LC chambers of 2.4 GHz .
Then you maybe knowing your microwave's inner workings and cooking of your
hams may possible!




brian whatcott November 10th 09 01:53 AM

Natanoj/Jonatan writ...(was About exciting passive ...)
 
Natanoj aka "Jonatan" [get it?] wrote some stuff....
/snip/



Say, young fellah: does your Mommy know you're
playing on her 'puter?

Brian W

raypsi November 11th 09 12:04 PM

Natanoj/Jonatan writ...(was About exciting passive ...)
 
On Nov 9, 8:53*pm, brian whatcott wrote:
* *Natanoj aka *"Jonatan" [get it?] *wrote some stuff....
* */snip/

Say, young fellah: does your Mommy know you're
playing on her 'puter?

Brian W


Hey OM:

Every time I looky his profile it changes, Gotta love those script
kinders.

My hams are honey baked spiral sliced. Hard to do with microwaves.

73 OM
de n8zu

...---... November 15th 09 10:22 PM

Natanoj/Jonatan writ...(was About exciting passive ...)
 

"raypsi" wrote in message
...
On Nov 9, 8:53 pm, brian whatcott wrote:
Natanoj aka "Jonatan" [get it?] wrote some stuff....
/snip/


Say, young fellah: does your Mommy know you're
playing on her 'puter?

Brian W


Hey OM:

Every time I looky his profile it changes, Gotta love those script
kinders.

My hams are honey baked spiral sliced.

Bet your nuts are too!




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