[iluvtubes]

Originally Posted by Ian Iveson[_2_]

On Dec 26, 12:50*am, wrote:
On Dec 24, 5:37*pm, "Phil Allison" wrote:

"Ian Iveson"

http://www.berners.ch/McIntosh/Downl...AC1500_ser.pdf

Hello Phil, merry christmas. Always nice to know you're still there,
in Australia.

** Did you even look at the schems ?

Not for long. Couldn't be bothered searching for the best example.
Luke warm I know, but positive all the same.

* *They are all completely illegible.

Oh well.

Just suggesting a different approach to asking the question. the
probability of finding someone here who knows the resistor values, or
has a set of the same vintage, is quite small. If the OP isn't able to
discuss the details of the circuit, he won't get anywhere, probably.

Perhaps he could sketch his circuit, and ask what's missing. Like a
christmas quiz. It's been a while since we had one.

*Try this one.

http://www.tubebooks.org/file_downlo...0_service_manu...

Thanks, Phil.

Ian

As far as I can determine, the connection points and circuitry are all the same as the early schematic indicates. All the caps are the same values. The only things different are some of the power resistor values are lower than what the schematic calls for.
In my first post, I might have overstated when I said "burned". Maybe more like discolored, or ran hot, to the point that the color bands have darkened somewhat. If I could just find pictures of another late model MAC-1500, that would solve everything. I came across one online, but unfortunately it was too blurry to make out the resistor values. But it also told me that mine is completely original and untouched, since it had the same resistor layout as mine.