Steven Mark`s TPU

[otto]

Hello all,

@Roberto

I didnt want to more confuse the people thats the reason I didnt draw the feedbacks.

The feedbacks are wound all over the circumference and are the last coils wound in a TPU.

@Gustav22

I will be patient, I hope at least, ha,ha.

@All

I disconnected the bulb - load, the power supply and the oscillators from my TPU

I see kicks at frequencies of around 250 - 285 Hz. I hope this is the frequency because 1 "set" of kicks is traveling in 1 direction of my scope screen and the other set of kicks is travelling in the other direction. This kicks are growing from 0V to 10V!!!  Connected only my coils like in the picture and my scope, of course.

I can only hope that my scope doesnt produce this kicks (how?).
This kicks are generated by......I dont know but they are amplified by my coils because when I strech this kicks I see that the coils are involved with the forming of the kicks.

Now 2 hours rest and again back to my workbench.

Otto

[ronotte]

@Otto,

AMAZING!, in my last ECD I tried the same test, disconnecting PS, oscillators and load: what I saw, probing on collector has been a nice AM signal (local medium wave station) of about 5 - 10 millivolt.  Please try to understand better where these kicks are coming from and report about their shape, duration, repetition rate and amplitude  (do you have a near medium wave station?).

For myself I'm half completed the 2 additional feedback windings...so hope to join you soon.

Roberto

[Gustav22]

Hi Otto,

....Please try to understand better where these kicks are coming from and report about their shape, duration, repetition rate and amplitude ...

Maybe it would be interesting to scope each control coil individually on your completely disconnected 3-stack TPU, and to see if you can find "induced" voltages (or to say it better: "induced frequencies") and to see if these frequencies have different values and to find how these values are related to each other.
In order to find the "natural relationship" between the frequencies.

(Also ob man an den 3 CCs in "ausgeschaltetem zustand" unterschiedliche frequenzen messen kann und wie gro? die sind).

@ronotte
penso che e ora per pulire un po la mia macchina e prepararmi per far' la strada a Roma, uno di questi giorni
;-)

[ronotte]

@Gustav22,

you are wellcome!  ...you will find it INTERESTING.

Roberto

[wattsup]

@otto

If the device is not powered, sometimes what I would do when I was testing my ECD v1 or other devices for interference was to connect the ECD to the scope. Then take a battery and a transformer and just hit the primary leads on the positive and negative of the battery to see if this will be caught by the ECD through the air and shown on the scope. This can give you some idea if it is catching something from the outside.