Re: dead reds

This flyback was/is being designed from the ground up, to work in the
Amplifone circuit as a drop in replacement. It uses the same primary
input voltage and (is supposed to) resonate at the same frequency.

A custom mold was made for the outer housing and a custom bobbin with
terminal pins in the end-flange spaced specifically to fit the Amplifone PCB
was also developed as part of the project.

Cinelabs released an easter egg photo of the FBT some time ago when
we annouced the Sanyo replacement FBT, but as we've been encountering
the well documented issues associated with developing a replacement
for this particular circuit, had been keeping it low profile, so as
to not get people's hopes up (and prevent a flood of "is it done yet"
emails).

Regarding using existing TV FBTs, I really don't want my vector games
to sound like they've got raster monitors in them!

-Mark

On Sun, Aug 27, 2006 at 03:17:49PM -0700, jrok wrote:
> At 10:50 PM 8/25/2006, you wrote:
> >Well it looks like for now this is way out on Voltage levels. I ran it lat
> >night and could only get an out of focus picture due to the Anode voltage
> >being about 9kv too low :(
>
> 9kV out, bummer :( Is this a 'standard' model of flyback or a custom job ?
> I ask as looking at 'modern' flybacks they mostly seem to run from a
> 120v-160v voltage. So my thinking goes.. using a 48V available as a source
> ( the -24 to +24 on the Amplifone board ) you'd theoretically only get
> a voltage stepped to around 10kV ? Correct me if I'm wrong ;)
>
> Also for general interest I've seen monitor/TV's running around a
> 50V supply into to a boost regulator to generate about 130v before
> powering the primary of the flyback.
>
> Great idea for a drop in replacement BTW, hope you get it working.
>
> - James
>
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Received on Sun Aug 27 19:33:36 2006