13 Jan
2008
13 Jan
'08
5:55 p.m.
Hi, all,
I've been collecting various classic bits to work on over the winter,
including a pre-CTRC 32K PET board (2001-N/3032) and a Static PET
board. I don't have any cases or accessories, but I do have a C2N232,
a single bare keyboard, and a C=Key converter enroute. For video, I
was planning on trying that ancient XOR circuit to make composite video
from sync and video, and feed that to an old Panasonic mono CRT I saved
from scrap. What I'm lacking at this point is a power supply.
I elieve the 8296D (internal floppy drives) PET used a switching supply.
Do any docs for that machine exist, I wonder...
Obviously, I'm unlikely to find a suitable mains transformer, so I was
Actually, I do have a 'spare' PET mains transformer somewhere, from
sombody who converterd a PET to the intenral drive model. The problems
would be (a) getting it to you and (b) it's the 240V-input version, and
(c) finding the darn thing.
You could consider winding the transformer. You can get 'transformer
kits' I believe that come with pre-wound primary windings to suit mains,
and a set of laminations. You wind the secodnaries (the instructions tell
you how many turns/volt to use) with suitable wire and put it together.
Said kits come in differnt total power ratings, either work out the total
power used by the PET, or estimate it from the size of the origjnal
transformer.
-tony