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previous: Tim C. Trace,It is definat... -- 2/27/2000 6:49 PM

Re: Hey Trace

2/27/2000 7:47 PM
Richie	Re: Hey Trace I have been following this post for a bit and I think as others have posted.Its a late 69. a good clue on dating the Marshalls to get you in the ballpark figure is where the caps are mounted on the chassis.From 68 on the filter caps were on the top of the chassis.From late 66--> 67 it had one can cap by the power transformer the others mounted under the chassis. 66 and earlier 100 watt models had all the caps under the chassis. Also the way the output transformer is mounted.. which direction it is placed.In 68 amps the bells of the OT will be facing yo, looking from the back ealier models they will be the other way. bells>-->[\|\|] <--< ealier than 68.. Now for he hum question.. can you teach it the words so it don't hum...(sorry a little sunday humor) Try to disconnect form everything except the fuse..(no load) and see if it still hums I have seen these in other amps too Like a vibration.If its bad you can try and mount rubber washers to help.if you want try and use the transformer.If it still hums with no load applied.. you may have to change it...if the amp is picking up the hum. Maybe are experts might help us here? R.G. DOC, GW, R.A.?? The transformer may have been changed years ago who knows.. So that may be why it is a different mounting. Hope this helps.. But the date code you gave says to me late 69..it may not have the plexi panels but still should sound like one..unless that plastic panel has a magical tone difference.."laughing".just more for collecters. The first Marshalls were built in 62.. and were 50 watters.. the 100 watters didn't come along till around 66.. So this being a 62 100 watter..sounds a little weird to me. unless he still has the reciept of purchace..I'd think.. "he thinks" it was 62.. {~}==::: Richie

2/27/2000 7:47 PM

Richie

Re: Hey Trace

I have been following this post for a bit
and I think as others have posted.Its a late 69.
a good clue on dating the Marshalls to get you in the
ballpark figure is where the caps are
mounted on the chassis.From 68 on the filter
caps were on the top of the chassis.From late 66-->
67 it had one can cap by the power transformer
the others mounted under the chassis.
66 and earlier 100 watt models had all the
caps under the chassis. Also the way the
output transformer is mounted..
which direction it is placed.In 68 amps the bells
of the OT will be facing yo, looking from the back

ealier models they will be the other way.
bells>-->[||] <--< ealier than 68..
Now for he hum question.. can you teach it the
words so it don't hum...(sorry a little
sunday humor) Try to disconnect form everything
except the fuse..(no load) and see if it still hums
I have seen these in other amps too
Like a vibration.If its bad you can try and
mount rubber washers to help.if you want
try and use the transformer.If it still
hums with no load applied.. you may have
to change it...if the amp is picking up the
hum. Maybe are experts might help us here?
R.G. DOC, GW, R.A.?? The transformer may have been changed years ago
who knows.. So that may be why it is a
different mounting. Hope this helps..
But the date code you gave says to me
late 69..it may not have the plexi panels
but still should sound like one..unless
that plastic panel has a magical tone
difference.."laughing".just more for collecters.
The first Marshalls were built in 62..
and were 50 watters.. the 100 watters
didn't come along till around 66..
So this being a 62 100 watter..sounds a
little weird to me. unless he still has the
reciept of purchace..I'd think.. "he thinks"
it was 62.. {~}==::: Richie

Replies:

Trace Richie;Excellent po... -- 2/28/2000 7:05 AM