Troubleshooting the Sound System on Bell & Howell 16mm Projectors, Models 1500-2500 скачать в хорошем качестве

Troubleshooting the Sound System on Bell & Howell 16mm Projectors, Models 1500-2500

This video should help anyone trying to understand and troubleshoot a Bell & Howell 16mm 1500/2500 sound system. There are slight differences between models, so refer to manuals. This is an updated version of a previously uploaded video. Chapters: 00:00 Introduction 01:34 The exciter lamp must come on! 02:47 Changing the exciter lamp 03:55 Checking the voltage at the exciter lamp 05:27 Removing the back covers from the projector to check the amplifier fuse 09:34 Remove bottom cover to inspect the amplifier 11:53 Checking for other sound system issues at the amplifier edge connector 14:26 Replacing the amplifier 20:02 Success! 20:44 Additional tests for low or garbled sound 25:52 Celebrate by viewing a sound film Here's a link to Larry Urbanski's website: https://urbanskifilm.com/supplies.html Here's a link to a very good 16mm film user forum: https://16mmfilmtalk.com/viewforum.ph... Here's a link to an alphabetical list of vintage film projectors manuals: http://www.film-tech.com/warehouse/in... Here's a link to a diagram of three common sound amplifiers used by these machines: https://web.archive.org/web/200809250...