Author Topic: My 8XA circuit  (Read 18941 times)

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Re: My 8XA circuit
« Reply #48 on: August 05, 2012, 21:21:57 pm »
yes,but at the begining of this thread you said that don was just pulsing 120hz
(on/off by the scr) what i mean is that the carrier freq(dc signal from the variac will be always 120hz)
Another q:how do you manage to get resonance with the 8xa,without the gating and a single pot and no one else on this forum manage that...there must be somethingelse....thanks for reply tony

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Re: My 8XA circuit
« Reply #49 on: August 07, 2012, 00:23:05 am »
adys15, The 20 hz is the gating frequency.If you run the gating faster than 120 hz,you won't see the the signal posted above.
The 8xa IS NOT A RESONANCE CIRCUIT!!!!
You can not get resonance from this set up.The 8xa is only a proof of amp restricting.The resonant system is the small white cavity with the 11 tube sets.
Don

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Re: My 8XA circuit
« Reply #50 on: August 07, 2012, 00:54:09 am »
Thanks Don,you say it is not a resonant circuit but Tony says that he got 400v on the cell from 10v derived from his variac,and the 8xa uses almost the same circuit as the freq gen used later on,except for the optocoupler and except the transformer,but all in all he pulses hv at the cell trough the chokes...so...why is not resonant circuit?

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Re: My 8XA circuit
« Reply #51 on: August 07, 2012, 01:00:39 am »
The way that I got resonance with the 8XA circuit was by using pretty big chokes. One choke was around 3.2H and the other was around 3.8H. Using 10-12 voltages input, I got a peak-to-peak voltage of just over 800v @ ~2.4kHz

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Re: My 8XA circuit
« Reply #52 on: August 07, 2012, 12:38:12 pm »
Thanks for the reply Tony!Tony you hid resonance with the 8xa,allright,but what about the ''pulsed transformer''(4,936,961),did you got resonance with that?and what about the vic transormer i'v seen on you website(u-core setup)?I see a lot of  people sayng that they got almost 1000v and when they hoked to the cell they left with 10v,i incounter this problem to....water resists...that's the problem....how do you manage to get arount that problem...?
I want to go back to basics and built 4,936,961 setup...it is worth it?or Stan's is just playng around and don't give the corect specs?
Another q:if you pulse the primary of a tr.don;t you get a distorted signal at the sec./chockes?(i don't have a scope )a spike signal?
I have the lawton circuit and the 9xb that you posted on the forum,which is best?
Can you give the most smaler/simpler transformer design to play with?and hopelly hit a sort of resonance:)) if you want/can...
Sorry for the long question list...I hope i don't bored you do death?:D
Respect!!!
 

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Re: My 8XA circuit
« Reply #53 on: December 21, 2016, 18:18:04 pm »
Tony,
No, it looks more like this scope shot.
Don

What does this pic look like ? It doesn't pull up for me ?
Can someone reshare that picture plz?
« Last Edit: December 22, 2016, 00:30:27 am by hydroxogen »