[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: VTTC - audio modulation
Original poster: "David Trimmell by way of Terry Fritz <twftesla-at-qwest-dot-net>" <davidt-at-pond-dot-net>
Hi Marc, Actually Dunkan would be the one to ask, as he's done the Q&D VTTC
using Haumann's design. I have played with the thought of using a 803, though.
At 06:47 PM 5/21/01, you wrote:
>Original poster: "Metlicka Marc by way of Terry Fritz
>maybe you have saved me some headaches with this post because i was
>setting up to use my pair of 813's in my attempt at the Q+D tesla
>project. i have a pair of vt-127A's, do you think they would be better?
>they would definitely make a strange "LOOKING" setup, of coarse strange
>looking is me! how about some 4-125A\4D21's? could one put the feedback
>loop more towards the center of the big tubes?
>thanks for the help,
>geek #1055 (and proud to be)
>Tesla list wrote:
> > Original poster: "David Trimmell by way of Terry Fritz
> > Hi, just a quick note, but his web page changed to:
> > http://members.aol-dot-com/uhaumann/
> > Regards,
> > David Trimmell
> > At 04:41 PM 5/19/01, you wrote:
> > > >> Possibly a interesting idea would be to take Ulrich Haumann's
> > > >(sp?) design to a more powerful tube
> > > >- Do you happen to know the URL?
> > >
> > >
> > >http://members.aol-dot-com/uhaumann2/plasma/eplasma.htm
> > >
> > >Careful with this one. The plasma is live to HT positive, and the
> > >main problem with a big bottle is going to be coupling the top of the
> > >TC to the grid feedback loop without getting strikes to it and blowing
> > >the grid coupling cap !!! Full plate HT on the grid is not
> > >recommended :-) This, and this alone, has so far dissuaded me from
> > >trying it with a pair of 813s.