PeRFiDiouS
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I am looking to come up with a replacement for the MC1 component on the Atari Amplifone HV unit. It is needed for the new Amplifone HV reproduction units and to keep the original ones working. This component is crucial to the HV units operation and seems to fail as much or more than the flyback.
The component is a combination of 3 coils/chokes.
Here is some information reposted from the Vectorlist archives:
Has anyone tried the method above with any success?
Joe B. has a spotty reputation at best but I do not see any reason he would just make this up. I have the parts mentioned above and have thought about trying this but really wanted some more input and any information others have in this area first.
..
The component is a combination of 3 coils/chokes.
Here is some information reposted from the Vectorlist archives:
From: Jess Askey
Date: Tue Feb 08 2000
Hi all,
I decided to smash up one of my Magnetic Correction Units to see what was
inside since I didn't think it has been documented here. It came apart quite
nice after sitting in the freezer all day. What I found was sort of puzzling (to
me at least) can anyone help explain this....
12 turns air core (cylinder)
Terminal 1 0-----+------@@@@@@@@-------------------+------0 Terminal 2
| |
| |
|-----@@@@@@@@---------@@@@@@@@---|
12 turns 8 turns
solid core solid core
(cylinder) (half circle)
Im not sure of the guage of the wires on each inductor exactly.
What is the effect of having different core'd inductors in series/parallel
like this?
--------------------------------------------------------------------------------------------------------------------
From: Joe Bachmann
Date: Sat Mar 30 2002
All,
I had a HV board here without an MC1 on. So, with the knowledge of what Zonn
had put into the Amplifone FAQ I decided to try something to replace MC1.
Now having a few old Pac filter boards lying around I removed 3 of the coils
off the board. I soldered this together in a triangle end to end:
/\
/ \
-----
After this, I placed it into the MC1 position just as above. This gives you one
coil with two in parallel with it. The HV assembly I used was otherwise working
with a real MC1.
I placed this into a Star Wars cabinet and it came right up! My HV was HIGHER
than with a real MC1 - 20kv vs 19.5kv. After adjusting this down, I played a
few games of Star Wars. After turnign off the machine, I was very suprised to
find that my HV board seemed to be running cooler than with a regular MC1. Now,
I will need to test this in the long time and be sure it last 8-16 hours
straight.
JB
Has anyone tried the method above with any success?
Joe B. has a spotty reputation at best but I do not see any reason he would just make this up. I have the parts mentioned above and have thought about trying this but really wanted some more input and any information others have in this area first.
..
