•While the radio certainly lured people away from player pianos and basically changed the entertainment industry forever, the fact that players made a come-back in their (basically) original form some decades later suggests that the image of a player piano as an entertainment device never really die...

•Joyce Brite had requested info on removing scratch sounds from vinyl and LP recordings. Back in the "Good old days" (1970s, I guess) there was a company which produced an audio device which sampled incoming signals (phono record signals, e.g.) on a constant basis (many times per second). When the s...

•Last Month a client bought in one of these instruments for restoration. The problem here is that out of the 8 or so rolls that are with the device, none of them are complete and some are damaged to the point that though they can be used for templates and remastered, they are unplayable. These rolls...

•Ray, The Wurlitzer automatic roll changer really does work, as I am sure many respondents to your question will say here. It is not just a storage device, but really does automatically change and play five rolls in succession. As Q. David Bowers reports in his "Encyclopedia of Automatic Musical Ins...

•Doug Mauldin wrote: > On one of these organs an access panel was removed revealing some of > the inner workings, including the tremulant. I could see a pneumatic > device oscillating at a rate of about seven Hertz ("Alpha waves", > anyone?) and which clearly corresponded to the tremolo heard in the...

•I am currently looking to sell an original Seeburg Mortuary Organ on eBay, and in the ad I mention that the tracker tubes can be "teed" into a electric-pneumatic device that opens a hole to atmosphere when triggered by the midi-reader. This is similar in concept (exactly the same, actually) to Larr...

•Phil Dayson wrote in 020307 MMDigest, "I guess I could put a fuse in-line with each solenoid but I would hope there is a better solution." Even though the device described is not a pipe organ, the wiring of it could probably be construed to be similar enough in terms of scope and applicable charact...

•I've been reading this thread with some interest, I suppose because I have spent a lot of time in casual research and development of electromechanical devices over the years. I'd be glad to lend such help as is appropriate, but I'll need to know a few things: 1. What is a PowerRoll, i.e., what does...

•When I mentioned an electronic chip idea, what I had in mind is a "microcontroller" with internal or external ROM, driving a speaker. There are a number of such devices on the market, e.g., Motorola, Parralax Stamp, Atmel, etc. A Google search for microcontroller should turn them up. One version of...

•Andy, Never mind getting them out of the piano -- keep them out of the house and shop. I have found a great little device that plugs in a wall outlet, that emits a frequency that we cannot hear, but the rodents cannot tolerate. One drawback is not to use this device if you have a pet hamster or pet...

•Folks, Back in the 1960s when I was involved in restoring numerous reproducing grands I invented a device that was extremely useful. To my knowledge, there has always been a device on the market in the piano supply house catalogs called a "Miller Truck". I owned one; it's mainly used for flipping a...

•The risk of using PayPal or any debit card is small, but when disaster strikes it will be a nightmare. If you must use such a device, have a separate account with as little money in it as you can get by with. True credit cards pose no real risk. I decided long ago to stay away from the debit system...

•Don Winter wrote: > The risk of using PayPal or any debit card is small, but when disaster > strikes it will be a nightmare. If you must use such a device, have > a separate account with as little money in it as you can get by with. > True credit cards pose no real risk. Other than making the credi...

•Richard Vance has made a point that there is a difference between solenoids and electromagnets; I must point out that the technical difference is different than he suggests. An electromagnet is a device which is usually made of ferromagnetic material (like iron) and a coil of wire which converts el...

•-- non-subscriber, please reply to sender and MMD -- I have a Melville Clark Apollo grand piano, serial No. 17800. It's in the most incredible condition except it doesn't have the "player device" -- the entire player mechanism is needed. Any ideas where I can find one? Thanks! Paula ...

•It might amuse some of you to know the "other" history of this little ditty. It seems that in 1924, the Metropolitan Opera, as a fund raising device, offered a recording made by a variety of the then members of the Aeolian (Duo-Art) organization. As some of you may know, the tune had become ubiquit...

•Nanartsy@aol.com wrote: "I have a Conway piano with an Artrio-Angelus mechanism. The piano needs to be rebuilt and the man whom I've commissioned is recommending the removal of the reproducing mechanism, to be replaced by a digital Pianomation device. "I'm torn. The Artrio-Angelus is touchy and req...

•> We treat air like water, so, can you make a device that is similar > except that the steam is replaced with pressurized air, and instead > of a water supply line you would have a vacuum line? It's not exactly what you want, but you can buy an air-powered vacuum pump from Harbor Freight Tools: htt...

•The Morse report gives patent number 1,085,989 for the Duo-Art perforators. Looking this number up on the US Patent Office web site (www.uspto.gov) shows that it's not right -- this patent is for a "Signalling Device" by SL Martin and WA Smith! It was granted on the same day (February 3rd, 1914), s...

•Julian Dyer noted in 030228 MMDigest: > The Morse report gives patent number 1,085,989 for the Duo-Art > perforators. Looking this number up on the US Patent Office web site > (www.uspto.gov) shows that it's not right -- this patent is for a > "Signalling Device" by SL Martin and WA Smith! It was g...