#OLD LOWREY ORGAN MODELS GENERATOR#

InLowrey put on the market the famous Organoan organ-like keyboard placed on the front of a piano keyboard.

#OLD LOWREY ORGAN MODELS GENERATOR#

In the late s, the Eccles-Jordan circuit was developed, a very stable generator that was a Lowrey exclusive. Frederick Lowrey produced a working model of an electronic organ inand until World War II, experimented with many different tone-generating systems. Got it!Inwhen the vacuum tube was invented, research into the art of electronic music began almost immediately. Look Inside Flashback - Lowery Organ teardown In otherwords these nodal voltages are the nominal DC voltages a repair technician would expect to find with a DC voltmeter while all circuits are in proper working condition. I suspect that the large number of voltages you cite are actually DC bias point values on the schematic to assist troubleshooting and not actually seperate supply output voltages. Do they need to have loads connected? How do I set this up as a bench project? Unfortunately your schematic picture is not very ledgible. I can't risk damaging the restored boards at this point. I want to set the project up as a bench project outside of the organ. There is enough room for multiples to get to original values. I will mount the new caps on boards in the same places as the originals on top of the chassis with stand offs. I won't loose anything by trying but I am crossing into new territory. So why not replace the caps now? I've acquired a second C power supply for the organ that I will use as a test to see if I am up to the task and I wind up with stable voltages. They will eventually fail and I will have to do it anyway. The power supply is working wellвЂ¦ all voltages are on the mark and there is no hum but it doesn't make sense to leave 30 year old caps in after doing all this work.

The organ is beginning to sound like new but I am at a crossroad and I need help. I've just replaced all 18 front sliders too. I've also replaced over of the original ICs with new generics and they are working well.

I am already far enough along in this restoration to know that with help I can finish the job: I've replaced all of the electrolytics on all of the boards except for the power supply.

Old lowrey organ models