[TCML] having problems with vttc tuning...

[DC Cox]

If you are running a classic Hartley oscillator circuit. try reversing the
feedback coil connections.  If they are the wrong polarity sometimes the
circuit will not oscillate.

Dr. Resonance





On 3/14/08, giorgio a. di donfrancesco <giorgiodidon at gmail.com> wrote:
>
> hi all, i'm having some problems in vttc oscillation starting,the design
> is
> almost tha same of this:
>
> http://www.stevehv.4hv.org/VTTC4.htm
>
> diferences: mot not doubled, grid leak resistor of 1500ohm (100w)
>
> assuming the tube is ok (but at this point i'm not so sure!) what can i do
> start oscillation so i can proceed in tuning? i checked mot voltage that
> is
> ok, mmc tank cap is ok.
> any suggestion?
> thank you all.
> giorgio
> _______________________________________________
> Tesla mailing list
> Tesla at www.pupman.com
> http://www.pupman.com/mailman/listinfo/tesla
>