Please use the Shopping Cart to group your items together so you can make one payment and pay one shipping charge. The Wurlitzer model 660 amplifier is found in earlier versions of the 1936 models 312 and 412.
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The later models using the 661 amplifier had the volume control mounted on the cabinet interior wall instead of inside the amplifier like the 660.
The Wurlitzer model 660 amplifier seen here is complete but has not been restored or tested.
Tubes are not included.