Gulbransen President 4116WY

[Scott from Oz]

Hello there,
is someone able to advise me on a replacement transistor for accomp switching matrix assembly for this organ. The accomp 1' drawbar is not working and I think it's related to transistor Q1 on the board. The value in the service manual says 801540... when the transistor is removed, the 1' pitch sounds continuously irrespective of the 1' drawbar position. When the transistor is put back in, the 1' drawbar no longer works. This is a fairly urgent repair for a church so any assistance would be appreciated.
thx
scott

[geoelectro]

2N3638 PNP

Geo

[Scott from Oz]

Thanks Geo, this should get it working again right

[Scott from Oz]

A further question- how the heck do you remove the leslie out of the organ for service. I found 4 screws but it still seems to be held in somehow