The Wurlitzer 4000 is a vacuum tube chord organ that was first manufactured in 1958. It has thirteen pedals, one manual, and chord buttons positioned on the left.

The technical drawings that we currently have scanned include:

• 500003 (Reinforcing block)

• 500030 (Contact wire)

• 500045 (Music wire)

• 500046 (Key spring, sharps)

• 500116 (Female contact)

• 500133 (Channel support)

• 500136 (Felt strip, stop tablet)

• 500149 (Down stop felt, swell pedal)

• 500150 (Down stop bracket assembly, swell pedal)

• 500165 (Printed circuit board assembly)

• 500173 (Up stop felt, sharps)