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Thanks Scott and several others for the replies. I took the scanner from my C3 Cleaned it well, as per the bulletin, and installed that. There was a pretty good amount of oil in it. That is working

The scnners are the same but the wiring is different. That's incorrect. Broken or shorted ones, maybe.

And also hard to listen to it's sound ;-)! As many, if not all Hammond organs of those times, it has been a desperate trial to approach the TWG organ sound without a real TWG. Best regards!

I'm quite sure that any pan shaped scanners from the -2's on are the same, also in M-2, M-3, and M-100. To my surprise, I even found a pan scanner in a T series organ (TTR-100) with self starting

Tried removing 6550 - SUCCESS! I have a Leslie branded 6550 which works great in either slot, and a Chelmer 6550 which breaks down in either slot after a few minutes. I will order a new matched pair.

If the problem was in the organ, in the "Main" position, the popping and crackling would only be heard from the organ speakers, the Leslie would be silent. In Ensemble, the noise would be heard from

Then the problem is in the organ.

It happens in any MEE position. I will first try the 6550's idea. I really hope it isn't capacitors :( I have read something about the 470ohm resistor connects to OC3 in various articles. If I did

Precisely my point. I think.

If the Leslie makes a noise when the switch is in Main only position, then assuming the switch is correctly wired, then the noise is most definitely not coming from the organ. If there is a noise only

The coupling capacitor replacement tip is going into the right direction. Could also be a bad cable or bad soldering joint. What the flashing of the OC3 is concerned: this is pretty normal. That’s

If the POP appears when the MME switch is in the 'M' position (Main only) then the noise is coming from the organ, is it not Chris?

It sounds like you need to replace the coupling capacitors and/or suppression capacitors. This is a schematic for a 122 amp, but that part of the circuit should be the same as a 145.

Probably a bad 6550 valve, sometimes you can see flashes inside the bad valve. You could try running the Leslie with just one 6550 installed. Assuming that only one of the two valves is bad, it will

Hi! Hope you can help me with a problem that has developed in my Leslie 145. When it warms up after 5 minutes say, the Leslie starts popping and cracking this happens consistently with or without any

Thank you Scott. I am going to dig out my A-143 and take the scanner out. Get that all cleaned out and sealed and take that on the job to be sure. I think that will be my best approach. rich reid

Thanks Eric. That sounds like "zapping" like what is done for the percussion. I saw a youtube video of someone doing that. I believe they used batteries instead, 2 or 3 9volt in series. Burning the

As I get this list in digest form only, I suspect that somebody has already answered this by now, but here goes anyway... I have a C3 that was "motorboating" (choppy sound when any vibrato was turned

For the record, that won't fix it if the problem is just too much oil in there. It often is.

No need to remove it. You can zap it, to burn off the zinc hair growth between the stator plates and the back housing. It can be done with padded down b+ with a resistor or a series of 9 volt