Successful TPU-ECD replication !

[Qwert]

I am new on this site. I found the contain of this site too huge for me to look through.
I found a US patent # 6,362,718  "MOTIONLESS ELECTROMAGNETIC GENERATOR" on uspto.gov site. Are you guys, aware of this patent? Maybe someone earlier mentioned it? What do you think of it?

[turbo]

Hello all,



I can only say that tubes are a MUST!! Sorry guys with MOSFETs. For myself I can say that Im on MOSFETs and building my sine wave oscillators with tubes. I burned a lot of MOSFETs and finally after over a year Im now cleverer.

TUBES, nothing else.

Otto

Amen.

[otto]

Hello all,

@Jestes

I have first to build my oscillators. The problem is I have to learn again after 30 years all about tubes.
I think that my ECD was a good starting point but I see that with tubes there will be a totally different setup of the TPU coils.

Just an example: to have large signals with MOSFETs I had to tap into the collector to achieve this. With tubes I already have large signals and I dont need to tap into the collector. I hope so,ha,ha.

@Jeff

in this moment Im using just 1 ECC or to say it better 1/2 of the ECC just for 1 oscillator. Now Im learning how to change the frequencies in this oscillator. I need frequencies from 1Hz - 300kHz. For now Im in the MHz region and looking for a circuit that can give me kHz or lower. HA!! Im not sure too how to make my oscillators not to mention how to connect everything together. Im....hmmm....at a zero point.

@Macedonia and IS

guys you are working a lot but it would be nice to see some drawings of your ideas. The point here is to SHARE.

@Qwert

if its the MEG then forget it.

Otto

[Jeff B]

@Jeff

in this moment Im using just 1 ECC or to say it better 1/2 of the ECC just for 1 oscillator. Now Im learning how to change the frequencies in this oscillator. I need frequencies from 1Hz - 300kHz. For now Im in the MHz region and looking for a circuit that can give me kHz or lower. HA!! Im not sure too how to make my oscillators not to mention how to connect everything together. Im....hmmm....at a zero point.

Otto

Just a thought -
What about a new (few turn) winding on to the TPU & taking that back to the Gate of the valve ?
You could do all sorts of arrangements of band pass/stop filters to select the frequencies you want to amplify.
This would be positive feedback.

The arrangement possibilities continue...
If you have 3 drive coils around the collector, you could have a pick-off (feedback) coil on each one.
What would the effect be if your tube drove it's signal into a Different coil than the feedback one was attached to ?
Would it fail to fire (so to speak), or would you pick up the Self-oscillation freq's of the TPU ?
Perhaps a blend of the original drive freq + the feedback freq would be necessary ?
Even if you got in to a runaway situation during testing, you Won't blow the valve will you...

Just thinking.
Jeff.

PS: Depending how high you are trying to push the valve into the MHz range, the Miller Capacitance will start to limit your gain.
       This is the internal capacitance between Anode & Gate, which results in Negative Feedback.
        Looks to be about 1.7pF from the data sheet. - Probably only of interest for much higher MHz freq's.

[otto]

Hello all,

I need help:

a shematic for a tube sine wave oscillator is needed. The frequencies should be in a few ranges...the tubes - triodes. All values for resistors, caps,.... should be shown...

Thanks guys.

Otto