Technical notes
Wurlitzer periodically released technical notes that described new troubleshooting procedures and other important information for technicians in the field. There are several formats: Technical Corner, which was a newsletter for techs, and Notes (Organ Notes, Electronic Piano notes, etc.), which were updates intended to be slipped into your service manual.
So far, we’ve only scanned Technical Corner newsletters. Notes will be scanned later (but feel free to request them if you’d like us to prioritize.) Click the links to download a PDF.
Wurlitzer Technical Corner
Wurlitzer Technical Corner (July 20, 1973)
This issue contains a correction to an error in Organ Note #67, an updated resistor type for Wurlitzer 200 electronic pianos that will make them less noisy, and a plea for everyone to stop sending parts to the DeKalb factory (“We are drowning in parts in DeKalb”), and more.
Wurlitzer Technical Corner (Sept. 11, 1978)
This issue has troubleshooting notes for the Wurlitzer 950, 575, 580, and 450, among other things. It also has instructions on how to replace broken key contacts for the Wurlitzer 4100. (It begins, “First of all, go to your local hardware store or hobby shop and pick up a #70 drill.”)
Wurlitzer Technical Corner (Feb. 12, 1979)
Unfortunately, we found all of the Wurlitzer Technical Corner newsletters scattered around the floor of the warehouse, so this one is missing the “attached cross-reference update sheet” (but maybe it will turn up in one of our boxes). Includes information about various organ models, including a tip on how to bring a 950, 950A or 950TA back to life if all keyers are dead, or if “the rhythm is making random sounds.”
Wurlitzer Technical Corner Vol. 8, No. 3 (Nov. 12, 1979)
This issue is four pages long and includes a lot of notes on Funmaker and Centura organs. There’s also a useful-sounding troubleshooting note on what to do if your organ is out of tune by a half step and lacking vibrato.
Wurlitzer Technical Corner Vol. 8, No. 5 (July 18, 1980)
Now it’s the 1980s and apparently time to get serious, so Wurlitzer has dropped the chatty tone and whimsical doodles of atoms and transistors. In addition to notes on Centura and Funmaker models, there are updates on D-series organs, including instructions on how to tune the D-40 (“Probably the most practical way to arrive at the correct pitch is to use the Tuba in conjunction with the pedals.”)