Music rolls for player pianos and player organs, etc., are rapidly dying. A growing movement is emerging to equip such instruments with a set of e-valves in...
Terry, starting a new group on Friday, 13 is a good start! My activities in e-valves date back more than 10 years and can be investigated in Terry's...
As sources of components suitable for midifying instruments come to our attention, their URL addresses should be added to our Links page. To view what I've...
Hi, I moderate the public Castlewood Organs Yahoo Group and the private Castlewood Organs owners/constructors group. You might want to consider making this...
Terry, Thanks for starting this group. We need to keep these old pneumatic marvels alive and playing beautiful music. Although I am rather short on time right...
To get this discussion group started, documentation is needed from people who have successfully fitted an e-valve system to their instrument. Walter Tenten has...
Thanks to Terry Smythe for starting this group! I'd like to bring up a subject that I've been thinking about: Solo Orchestrelles are designed to play 2 ranks...
... Within the large batch of 58n Orchestrelle rolls that I scanned back in October 2004, there was a single 116n roll, which I did scan. In the days...
... Yesterday, when I expressed my confidence in our ability to scan 116 rolls and produce useable midi files, I neglected to mention a significant shortcoming...
I have downloaded hundreds of songs from A-rolls. I don't know if they include the information besides notes. I haven't figured out how to see if they are...
Greetings D.L., As far as I know, in the cases where there is a simple single line tracker bar, the holes are assigned to MIDI numbers in the order in which...
Michael Barisonek has kindly provided a few pics of his Orchestrelle, along with some brief comments. He perceived a method whereby a pressure operated...
All Electronics in Los Angeles area, has available a 24vdc solenoid clapper, priced at $1.65 each. See: http://www.allelectronics.com/cgi-bin/item/SOL- ...
I don't think the 24V operation would be too much of a hangup. Most of the MIDI controllers out there seem to be able to switch that high, and if not, a...
Terry, I just looked at your pic. Nice idea, and should work fine. One thing I should have thought about is that the 24v operation isn't the REQUIRED...
Greetings Terry, Before designing my e-roll system, I experimented with a lot of ready made solenoid and relay units. Many things worked but most were very...
... Thank you. My limited knowledge of electronics is a real impediment. Following your suggestion, I ran this little solenoid clapper against a number of...
Peter Coggin's design is the nicest one I've seen yet, and one that I'd like to use when my supply of organ magnets runs out. Does anyone know if the maker,...
Greetings Terry, My experience is that data sheets for solenoids are almost worthless for our needs. Experimentation is what counts. Dimensions and coil...
... The BLP solenoid is really looking most attractive to me! The price (with RS components) is in the range of surplus components, the required power is about...
OK, I have a general question here. What difference does it make if the valve doesn't act linearly. Most of the valves that OSI supplies are angular action as...
Greetings Craig, valves designed specifically for this sort of use such as the reisner are different from an adapted solenoid. if i am remembering correctly,...
Walter's observation that a data sheet is available for BLP's Series 45d solenoids prompted me to try again. My browser of choice (Avant) failed to display...
Bob is right. You should be able to operate it at a lower voltage. From the picture, the armature opens up too far anyway. With it mounted and the gap...
When we were adding pianos to pipe organs we used normal player pianos or reproducing pianos and a set of Reisner magnets with the standard screw caps. These...
I went poking around in the Organ Supply Industries web site and have pulled down a douple of PDF files for the Reisner 601 and Reisner 601A Magnet Valves....
The #601 OSI valves are about $5 US. #601-1 are a little more. There is a %5 quantity discount for 500+. I bought 40 last year for a MIDI street organ I...
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