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Hey folks,
I recently completed foldback and tapering on my upper manual and foldback on my lower manual.
I made some guides to help me get the contacts in the right place and to the right frequencies. I am attaching the guides in PDF. If you print them on card stock you can cut them out and slot them into place on the manual. Make sure to print the PDF "Actual Size" vs. fit so this will work.
I also attached a picture of what it looks like in place. Made it very easy to do both jobs and get it right.
For those of you considering these efforts, I can tell you that the difference is quite noticeable, especially on the upper manual. The tapering adds a lot of volume to the upper octave, and the best way I can describe the foldback is it adds "cut" to the sound with all the drawbars pulled out.
Just FYI, I didn't do the normal foldback. I added 34 Ohm resistors in series with the 16 Ohm wires to get a total of 50 Ohms of tapering on those contacts per the tapering guide for the B/C/A/RT organs. The foldback is audible but much quieter than it would otherwise be, but still adds to the tone. I might do my next one without the extra resistance to see the difference.
Tom
I recently completed foldback and tapering on my upper manual and foldback on my lower manual.
I made some guides to help me get the contacts in the right place and to the right frequencies. I am attaching the guides in PDF. If you print them on card stock you can cut them out and slot them into place on the manual. Make sure to print the PDF "Actual Size" vs. fit so this will work.
I also attached a picture of what it looks like in place. Made it very easy to do both jobs and get it right.
For those of you considering these efforts, I can tell you that the difference is quite noticeable, especially on the upper manual. The tapering adds a lot of volume to the upper octave, and the best way I can describe the foldback is it adds "cut" to the sound with all the drawbars pulled out.
Just FYI, I didn't do the normal foldback. I added 34 Ohm resistors in series with the 16 Ohm wires to get a total of 50 Ohms of tapering on those contacts per the tapering guide for the B/C/A/RT organs. The foldback is audible but much quieter than it would otherwise be, but still adds to the tone. I might do my next one without the extra resistance to see the difference.
Tom
Attached Files
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