Re: B&W HV (was: screwy Asteroids problem (running in Asteroids Deluxe cabinet))

Mark,

I desoldered the HV transformer from the PCB and ohm checked the secondary,
out of circuit detached from the HV diode, to find infinite resistance. Not
even in the 100Mohm range!

Feeling frisky, from sucessfully repairing guitar pick-ups, microphones, and
other type transformer windings, I peeled away the outer rubber/plastic skin
to find a lot of arcing damage right where the superfine winding wire was
SUPPOSED to be crimped to the HV wire leaving the body. I tried to reattach
the HV wire to the severed winding, isolated the connection for vibration,
and checked continuity for a reading of less than 1kohm. I reinserted the
transformer in circuit and rechecked continuity. It survived the process so
far.

To my dismay, the damage was beyond the first two layers of winding. (Man
that wire is thin!) Upon energizing the circuit, the secondary opened again
much deeper than the first few turns. (Maybe I should rewind the whole thing
my self. Anyone know where I can buy 44awg. transformer wire??!)

Tony

----- Original Message -----
From: "Mark Shostak" <xx.vl@cinelabs.com>
To: <vectorlist@vectorlist.org>
Sent: Wednesday, April 05, 2006 10:44 AM
Subject: Re: VECTOR: B&W HV (was: screwy Asteroids problem (running in
Asteroids Deluxe cabinet))

> Although the upfront cost isn't quite $10K (it's actually just a few $K),
> there isn't enough demand to cover the outlay.
>
> However, I'm not sure how you know the problem is with the FBT.
> You might consider sending it to someone for repair. You might find
> the FBT is ok.
>
> Additionally, people who repair these units may have the required parts on
> hand.
>
> -Mark
>
>
> On Wed, Apr 05, 2006 at 09:38:39AM -0500, Tom McClintock wrote:
>> Hi Tony,
>>
>> Either someone on this list can offer you a used UV unit for the 15V2000
>> in your cabaret, or you can grab one off eBay. Unfortunately, there are
>> no *new* replacements for the B&W HV transformer.
>>
>> Unless someone wants to front about $10K for a run of them. Mark Shostak
>> has already received a quote and minimum order requirements are the
>> killer. I'm sure Mark would like to elaborate :)
>>
>> (and for those thinking a raster hack would work, think again)
>>
>>
>>
>> tm
>>
>>
>> Tony Roussos wrote:
>> > Hello Tom,
>> >
>> > I am a newcomer to Vectorlist and an audio/RF technician of 19 years.
>> > My
>> > personal cabaret Asteroids Deluxe has failed. Without a doubt, the HV
>> > transformer in the WG 19v2000 is arced internally beyond my abilities
>> > to
>> > repair. I've tried to locate new, used, and any company capable of
>> > rebuilding/rewinding my transformer without success.
>> >
>> > Is there a repair solution for such a problem? The rest of my machine
>> > is
>> > in top working order. It has sentimental value in my family and with
>> > myself.. Your help is most appreciated.
>> >
>> > Thank you.
>> > Tony
>>
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Received on Wed Apr 5 21:51:34 2006