I have posted recently about a repair I have in progress for an acquaintance who heard I worked with old organs through the organist at our local Methodist...
A little followup work on google this morning has led me to the spec sheet for the diode. When I applied the spec's to a mouser search the result says the...
A bridge, of course, is four diodes interconnected. What you have to worry about is the voltage rating (PIV) and current ratings. As long as you meet or...
Thanks, Bill for a valuable lesson.  If the new attempt to fix the organ doesn't take I'm not certain the owner is willing to go on much farther. I tried...
I'm always sad when these old organs start experiencing problems. A bit like people, things start going wrong, and in the end they pass away. But let's not...
Hello, Bill, Â The organ is a Yamaha 405S and I've already received the service manual with schematics from Jan who wrote the Mother of all Organ Lists if...
Cut off my last thought,  Sorry!  My speculation is that being I can only use 1 + and 1 - I'll use a jumper to connect the other open leads on the...
If it only has two leads, it is NOT a bridge. DO NOT short the leads together. DO NOT insert the bridge in there at all. TL, you need to get a tech involved...
Having worked on old PCBs in the past can I strongly urge you to make sure you not only remove the obviously burnt area of the PCB, but also make sure you are...
Thanks Bill.   No tech's in this area these days.  Last one cost me $300 and didn't diagnose the right part.  I made that repair through the help of...
Thanks for your help. I've just learned from Bill C. that the recommended sub part is not acceptable either.  Things aren't looking hopeful for this...
Just want to pass along to Bill C a nod of thanks for great advice and concern for the difficulties I've encountered in trying to help another family save...
You know, it's not dead yet! I can help you though it, but you are going to be putting in all the hours, I'll just be asking you to confirm things, and making...
I was going to say that as well. A dead PSU is probably the easiest thing to fix provided it hasn't popped the rest of the instrument. What you do need to do,...
The owner isn't willing to spend much more, so I don't know how far I can go. Bill. Do you have some suggestions?  I think I'm just one capacitor and one...
Got the message about the Ham radio network. I have a friend who was into Ham radio some years ago.  I'll check to see if she has any contacts. I had...
Give me more information. What are the symptoms of the fault, and what leads you to suspect the diode and capacitor? The burned component, BTW, is probably not...
Bill, on my first examination of the instruments the lights came on, the leslie rotor would turn, but there was no sound.  I have the schematic that shows...
OK Paul, The thing we have to worry about with a power supply, is if it is giving out the correct voltages. Diodes on power supplies are not critical things,...
Thanks for that information, Bill.  Unfortunately, the repair project is over.  Got the call from the owner about an hour ago.  They are going to part...
Let's hope she finds a good home. Bill ... From: T L DURHAM To: electonetalk@yahoogroups.com Sent: Friday, September 18, 2009 2:20 PM Subject: Re: [Electone...
I have some Questions My Questions are: 1. What Year did the Maas Organ Company Add Paul Rowe's Last Name and change the Name to Maas-Rowe? 2. Is there a...
I have just bought an EL70 which appeared to have a functional floppy drive until I did the test at home which showed "ERR":it would only read a 720kb not a...
Here is a tasty little treat IF you remember how to win Tic Tac Toe. Click the link _http://tinyurl.com/2uof4m_ (http://tinyurl.com/2uof4m) Vaya Con Dios...
Hi, I was just wondering if anyone would be able to help me or give me some advice on what l could do. I have a Yamaha EL 90 and have a problem with a...
I no longer have an EL90, but you're in luck as I think I have the disk you want on my hard drive. No sorry I have the origenal factory registratioin disk. If...
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