New Organ Build Topsy 3

[Harold Whipps]

Hi Ted,

They're extraneous. Compare it with the Simple CMOS Register Control. It has the same tremulant circuit.

[ted heid]

thanks

[graham wheeler]

[QUOTE=Jay Caughron;233044]Well I am about to close up the main windchest. I have all the pallet valves install and have checked them to make sure they all work. Going to get it installed and check for any leaks and make sure it all works under pressure.

Attachment 48313 Attachment 48314

Not much action on this thread at the moment ,how many are still working on it?? or are you all finished.

Hi Jay, i am just setting out my main wind chest and in your photo above you have 5 pallet valves at the end ,(opposite end to the bass pipes) what pipes are they for, and what are the 2 holes/pallet valves 3/4 inch apart next to them for?
cheers
Graham

[Jay Caughron]

Graham The 5 valves are for the 5 counter melody pipes that are on that side of the case. The other 2 are for the glockenspiel and Celeste block out.

I havent heard much form other builders ether but I do know there are a few building as I have sent out some parts for them.

I got stopped because of the cold and now I have been to busy doing honeydoo's to get back on it but I'm gona get there

Jay

[ted heid]

looking at tremulant and vibrato circuit, using tremulant as example when midi 58 and 56 are played together the outputs of ic2a and d are low preventing midi 58 and 56 (notes f and g) from playing when tremulant is active. Is that correct?

[Jay Caughron]

This is what my go to guy told me Ted

When both 56 and 58 play together it latches a circuit on the board on which in turn turns on the tremolo. For the short time necessary to start the tremolo, those two pipes should not play. As soon as the tremulant is on, and the dual input is removed, the pipes will play, provided you are only asking for one at a time.

The cancel pulse which is another independent note, turns the trem off.

Jay

[larry merlau]

hey jay yur supposed to be a wood worker not a electronics guru

[Jay Caughron]

hey jay yur supposed to be a wood worker not a electronics guru

That's why I have a go to guy

[ted heid]

makes sense I guess. thanks

[Harold Whipps]

Hi Jay,

Yes, that's how it works. They only have to be on for a very brief time. You would not notice any interruption in the playing of music. They would most likely be activated at the beginning of a bar or a break in the music score anyway.

We're slowly awaking from our hibernation.