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need help with leslie 147 amp


 

Hi fellow hammond zoners,
I just got a leslie 145 that apears to be in really clean shape
inside and out, there is literaly no dust in this thing at all.
It came out of a church along w/ a matching M3.
The pastor had just transfered to that church and found the organ and
leslie in non functional condition, he sent an email to a friend of
his in another state ( this friend had asked him to look for old
hammonds at the church)and asked him to come and haul away the rig
for free. Well he did, and then sold it to me for a song.
Before I bought it he inspected the amp but never fired it up.
he found a 200 mfd. 50V electrolytic capacitor rolling around under-
neath the amp chassis.
I looked at the schematic and parts list and determined that this was
C9 and it had broken of. So I soldered it back on, and started to
bring it up to 120V on my variac (1V per minute) Well I got to 90V
and started to hear a hissing sound coming out from underneath the
chassis, then I heard a sound that bad lighting ballasts make
(a 60Hz hum) but it sounded like it was coming out of the power
transformer. I shut of the Variac right away, Then I touched all of
the transformers, only the power transformer was hot, I also touched
the C9 it also was very hot, I forgot to touch the can capacitor.I am
very thankfull there was no smoke. After all of this I looked at the
schematic again and realized that I had soldered the cap with the
positive lead to ground instead of the negative to ground like it
should be.
Needless to say I feel really stupid because I thought that I checked
that.
My first question is did I cause severe damage to the amp by doing
this?
I only had it up to 90V
Also can I remove the C9 and solder it on properly, or has that been
damaged by this?
What is the function of this capacitor?
Where can I find a good replacment 200 mfd. 50V electrolytic?
What is the best duration of time to variac the 147 amp once I've
replaced the capacitor?
Any help with this matter would be greatly welcome, I can't wait to
get this baby fired up.
And on a lighter note I oiled up the motors and hooked them up to my
homemade switching system, then rigged the speakers W/ the crossover
to a 15 watt fender guitar amp... It sounded great and loud to boot.

Thanks alot, Tim aka '65 bassman

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