I found an old organ in my grandmas attic!

[mattfrye14]

im 17 and im teaching myself piano, and i found an Concord Electric Organ. But theres a problem, when i turn it on, it sounds like somebodys mashing down some of the keys??? Are some of the keys maybe jammed??? how can i go about fixing this??

 

[Beltrom]

Never heard of a Concord, but my memory is getting fuzzy of old age...
I had an old tubeorgan from the 60's once, a Hohner symphonic, and it got oxidation on the keys. Somehow that overlapped the circuits so it sounded like someone "halfpressed" the keys. Gently cleaning it and the circuits out fixed that. Be careful if you open it though, depending on how old it is it's electric circuits may be pretty easy to touch by accident causing damage to it or you.