Re: REVENGE-2

Peter, I applaud your ambition in creating an all-new monitor from the ground up. However, have you put any thought towards
retrofits for older monitors, to keep them alive as well?

I wish I understood HV units and monitor theory enough to know whether this was a silly question, but I'll try anyway: what's
keeping someone from designing an "adapter" pcb that would allow the use of a more commonly available HV transformer on a
different monitor? Say, for example, one that's failure prone and difficult to find - such as the one used in the Wells-Gardner
6100, or one that's failure prone and expensive to replace - such as the Amplifone. In other words, a piggy-back board with a
more common transformer mounted to it, that could be soldered in on the original WG 6100 HV pcb, etc. Just a thought. Feel
free to shoot down my dreams with technical facts : ) But better yet, tell me it's possible and feasible to do so, and I'll
be on your list to purchase the first few.

Richard
www.arcadeobsession.com/sog

peter jones wrote:

> Thanx to everybody who replied on this subject.
>
> i feel i should elaborate on a couple of points.
> first.
> I did not mean to just xerox the original stuff,
> i dont want to duplicate all the design-faults in the old stuff!
> I meant to design the boards from scratch almost,Using the latest parts.
> so that they fit inplace of the originals
> (same connectors and screwholes in the same places etch)
> (( I sure as hell would-not use the same transistors that WG did!))
>
> second.
> the ht-box.
> you CAN use just-about any LOPT in the ht box because in a monitor(pc) or a tv set the LOPT supplys many different voltages.
> in a vector design we are only interested in the ht winding.
> if tempest needs 24Kv and a 20" tv uses 24Kv then the tv LOPT will do just fine.
> you just have to check the schematic of the tv for the correct pinouts and input voltage/frequency(if not a tv).
>
> to make an ht box you need a LOPT with the correct output voltage.
> a free-running oscillator of the correct frequency & a voltage regulator to drive it.
> THAT'S ALL!!!
>
> I WILL NOT PAY WINTRON MORE FOR A LOPT THAN I PAY FOR A TV-SET!
>
> One final point - reliabillity.
> try to avoid using electrolytic caps wherever possible,and where there is no option use hi-temp low impedance types.
> phillips transformers are cheap - $15 for a replica from Konig/HR and they last.
>
> ---
> Ïðèãëàøàåì ïîîáùàòüñÿ íà www.talk.ru
>
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Received on Mon Sep 11 19:28:47 2000