Re: Anybody done John's Raster Hack for Ampliphone?

----- Original Message -----
From: "John Robertson" <pinball@telus.net>
To: <vectorlist@synthcom.com>; <vectorlist@synthcom.com>
Sent: Sunday, August 04, 2002 1:18 AM
Subject: Re: VECTOR: Anybody done John's Raster Hack for Ampliphone?

> Hmmm...re-read...novel concept.

Hey, I've reread your notes 50 times! :>

> You do have to take the cover off the end
> of the tube socket Focus so you can replace the old Focus wire with the
new
> one, or cut the Focus wire and splice in the new wire from the raster
> chassis. Do the same for the Screen.

OK, let's try this again. Do I need to bypass the resistor in the socket on
the focus or not?

> You should not be sticking any wires
> into the socket or making solderless connections - if the wire should
> loosed and fall and touch something else that would not be good.

Right; this was for "in case I kill the 4600 while I'm doing this the first
time" ease of swap. I'll do something more permanent when I get it working.

> Now the heater power. You are getting this from the raster chassis now

AHA AHA AHA!!!!! Nowhere is that mentioned in your notes!

> and not the old Ampliphone (which would be removed by this time...).
AHA AGAIN!!!! This would be good to add to the notes!!!

> The heater lines come from the flyback of the 4600 and (I believe) have
the resistor
> as part of the wiring on the 4600 chassis, if it is not on the chassis,
but
> is on the 4600 neckboard (which is no longer used 'cause you are recycling
> the Ampliphone's neckboard) would then have to be added in series with one
> heater line.

With those 2 "AHA"s, this comment about the resistor *finally* makes sense!

> Why not send me a couple of pictures of what you currently have and I'll
> see if I can figure out what is happening. Try and show the wires
> separately, perhaps put a white paper behind them so they stand out
better...

No need; the confusion should be cleared up now! I can't wait to give it a
try. Reread the notes and you'll see what I mean about it being unclear
about heater, etc.

> I'd like to see this work for you...

So would I; I'll be sending the shareware fee if it does.

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Received on Sun Aug 4 06:45:13 2002