Author Archives: admin

Moog Prodigy Harmonic Shifting

Posted on March 29, 2012 by admin

The Moog Prodigy has a nice sync feature that syncs both oscillators and frees up the pitch wheel to do something cool. The service manual says the sync switch locks the fundamental frequency of oscillator 2 to oscillator 1 and  … Continue reading →

Posted in Analog Synthesizers | Leave a comment

Olivetti Personal Computer M24

Posted on December 14, 2011 by admin

Anyone want to rescue these guys before they get trashed?  

Posted in Surplus Electronics | 2 Comments

Hitachi CP-x445 Blue Washout Problem

Posted on December 14, 2011 by admin

After about 4-5 years of use in classrooms and as rolling stock we are seeing a blue and/or yellow washout effect with these projectors. We think the blue and/or yellow haze problem is because of several factors. Dust buildup inside … Continue reading →

Posted in Electronics Repair | Tagged | Leave a comment

NEC VT695 Projector Design Flaw

Posted on December 14, 2011 by admin

Found a defect with these NEC VT695 projectors. The projector fault is when the status light flashes red as if the lamp cover is off even if it isn’t. There is a design defect in which the tab (on the … Continue reading →

Posted in Electronics Repair | 19 Comments

NEC MT850 Projector Problem

Posted on March 10, 2011 by admin

Believe it or not we still use these old ass projectors at my work. Why? Cause they still work well in most situations and we have lamps that need to get used up.  Noticed a strange problem with several units … Continue reading →

Posted in Electronics Repair | Tagged , , | 2 Comments