See this thread. http://www.organforum.com/forums/sho...it-Synthesiser Most Wurlitzers are considered more a "Theater organ" than a classic organ, although I had never heard of a theater organ until after I bought one. I bought mine to do classical music, also. Fortunately the extreme wurlitzer type vibrato can be turned off.
Frequently organs that haven't been played in fifteen or twenty years, sound great at the resale, but go faint or dead in a couple of weeks of real use. They have electrolytic capacitors in them, just like an old TV or radio. These are water fillled aluminum cans with rubber seals that deteriorate over 20-30 years. After they warm up, the water evaporates out. At $50, you are not wasting any money, the Wurlitzers have very reliable key and pedal contacts for example. Maybe the previous owner had some service work done and you won't have to do those particular e-caps, although servicemen usually replace just a few parts per service call. Fortunately the 605 is built with discrete parts that can be replaced by ordinary mortals without surgeon telescope glasses. Most of the electronic parts are very generic and can be bought at any big supply house. I'm starting to re-e-cap my Wurlitzer 4500 from the same era that hardly makes a noise. You can do them all at once, or do them one at a time as they fail. I've bought $50 worth of electrolytic caps for my 4500 from newark.com or mouser.com. Rubber parts like belt drives and motor mounts for the "spectrasonic" rotary speaker, can be bought from Morlock's organ supply of Rienzi, Mississippi. They have the service manual, also.