I have been gradually building up my 3/4 manual Hauptwerk system for about 4 years now, using midi-hardware.com equipment for the MIDI and SAM control systems. I have bought two sets of SAMs via ebay. The first set, of about 40 from the UK, are old Kimber-Allens and I have recently made great progress in sorting out the required electronics, with a lot of help and advice from Roman Sowa of midi-hardware.com. They are essentially ready to be mounted and used.
The second set came from the USA: 53 SAMs in superb condition on one rail that had to be cut in two for shipping but with the very extensive wiring all still intact. I don’t know what make they are. They are labeled “T&B-1”, so possibly Taylor & Boody. I have been trying to understand all the wiring and I have been successful with the reed switch side of things. However, the high-current electromagnet side is not so simple. While I have managed to actuate some of the tabs using my 12V supply, I haven’t been able to do this in a consistent way, or to figure out which connections do what.
Each SAM has two very thin long wires coming out of it, which I suspect is for some sort of control system that switches the common high-current supply to the magnets when they receive a logic signal. (There is definitely a working common earth connection for all SAMs, and I think also a common positive.) I think that this might work with my MIDECO decoder, and I have obtained some flickering tab responses in my testing, but I don’t really know what I’m doing. If this is what those two thin long wires are for, it would be great to avoid having to install a thick positive high-current wire to each SAM from my MIBO current booster board that can fit on the MIDECO.
I am hoping that someone can identify the SAMs in the attached photos and give me advice on the wiring options. My project is pretty much stalled now and has been for months as I don’t know how to proceed. I could just go ahead with the 40 Kimber-Allens, but the US SAMs are in such great condition it would be a shame not to use them too (they weren’t cheap either!). I already have the MIDI equipment to read and operate up to 64 SAMs.
thanks
Andrew
(I lived in London until last year, and am now living in Melbourne)
Image embedding from Google Drive unfortunately didn't work, so here are direct links that you will have to follow.
https://drive.google.com/open?id=0BwtUs6wYhB3dUmx0YWllTkRMODg
https://drive.google.com/open?id=0BwtUs6wYhB3dSVdkc2VwUEVBM3c
https://drive.google.com/open?id=0BwtUs6wYhB3dUWNIcF9hWnRCelU
https://drive.google.com/open?id=0BwtUs6wYhB3dLW5xWG5Mb2NraXM
The second set came from the USA: 53 SAMs in superb condition on one rail that had to be cut in two for shipping but with the very extensive wiring all still intact. I don’t know what make they are. They are labeled “T&B-1”, so possibly Taylor & Boody. I have been trying to understand all the wiring and I have been successful with the reed switch side of things. However, the high-current electromagnet side is not so simple. While I have managed to actuate some of the tabs using my 12V supply, I haven’t been able to do this in a consistent way, or to figure out which connections do what.
Each SAM has two very thin long wires coming out of it, which I suspect is for some sort of control system that switches the common high-current supply to the magnets when they receive a logic signal. (There is definitely a working common earth connection for all SAMs, and I think also a common positive.) I think that this might work with my MIDECO decoder, and I have obtained some flickering tab responses in my testing, but I don’t really know what I’m doing. If this is what those two thin long wires are for, it would be great to avoid having to install a thick positive high-current wire to each SAM from my MIBO current booster board that can fit on the MIDECO.
I am hoping that someone can identify the SAMs in the attached photos and give me advice on the wiring options. My project is pretty much stalled now and has been for months as I don’t know how to proceed. I could just go ahead with the 40 Kimber-Allens, but the US SAMs are in such great condition it would be a shame not to use them too (they weren’t cheap either!). I already have the MIDI equipment to read and operate up to 64 SAMs.
thanks
Andrew
(I lived in London until last year, and am now living in Melbourne)
Image embedding from Google Drive unfortunately didn't work, so here are direct links that you will have to follow.
https://drive.google.com/open?id=0BwtUs6wYhB3dUmx0YWllTkRMODg
https://drive.google.com/open?id=0BwtUs6wYhB3dSVdkc2VwUEVBM3c
https://drive.google.com/open?id=0BwtUs6wYhB3dUWNIcF9hWnRCelU
https://drive.google.com/open?id=0BwtUs6wYhB3dLW5xWG5Mb2NraXM
Last edited by Andrew_Melbourne on Sun Oct 01, 2017 4:56 am, edited 1 time in total.