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#2
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In article ,
KLR wrote: With the AMI - the adjustment is possible to have so that the record doesnt touch the magazine guides when replaced. This is tricky to very tricky on some machines, but really worth it. It also helps ensure good loading and unloading of records.... As for the turntable - the record is not "held" onto the spinning turntable - but is actually held in the gripper slightly above the turntable - and then dropped (about 1/32" or so) to the surface. Yep. Another adjustment that when it's right makes the machine nice on records. It takes effort, but it's worth it. The same happens when picked up - it is raised quickly and replaced. Really quick on my F! I think I might put a resistor in there to slow it down a tad - it's VERY fast right now... The same comments on the turntables and grippers would also apply to rock-ola. Magazine rack is not as good though as I feel the gaps are wider and the recards seem to "rattle" round a lot during rotation which cant do them a lot of good. Also many rock-olas have a stainless steel strip underneath the carousel to stop the records falling out and they scrape along this strip (edge though) as the thing turns. AMI uses a belt and pulley arrangement to stop this happening.. *misc grumblings about rock-olas deleted* Actually, my 1493 slightly tilts the recors in the rack to promote easier sliding as they go around. Needless to say, removing and polishing the hell out of that strip is a good thing. In any case, it gets the edge, which isn't a biggie. Older Rock-Olas used a rack belt, and even older ones used some weird thinge. Seeburgs are good on records - they push from the edge and clamp in the center. Wurlitzers are like this too, actually, Wurlitzers I don't think really touch the records anywhere else. This is the 50's type, the stack types generally murder records if you don't use support discs, the later type I have no idea. 78rpm AMIs converted to 45 don't touch the record anywhere but at the edge where the ring grips them, and the center hole. A touchy setup, but really cool once it's working right. You REALLY have to adjust the hell out of them, but they do work amazingly well once they're adjusted right. -- To email me, chage 'usermale' to 'usermail'. |
#3
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The same happens when picked up - it is raised quickly and replaced.
Really quick on my F! I think I might put a resistor in there to slow it down a tad - it's VERY fast right now... Hmm, the E had a 20 ohm resistor in series with the gripper motor.... not sure about the F Have you replaced the old selenium rectifier with a silicon bridge? This tends to give you a bit more zip... Cheers, Don Oregon Jukebox --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.489 / Virus Database: 288 - Release Date: 6/10/03 |
#4
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In article ,
"Don Lanway" wrote: Have you replaced the old selenium rectifier with a silicon bridge? This tends to give you a bit more zip... Oh yes it does..... It's the fastest AMI in the east now! Seriously, this thing *flings* the record out faster than you'd imagine. I know they were 'crisp' when new, but this is a bit too fast I'll probbably put another resistor in there to just hold the line down a bit - it's around 35 - 40 V at times. I'm not sure if you can still get the type of selenium used in these things - I DO know as a fact (because we use them at work), that seluniums ARE still made. -- To email me, chage 'usermale' to 'usermail'. |
#5
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"Philip Nasadowski" wrote I'm not sure if you can still get the type of selenium used in these things - I DO know as a fact (because we use them at work), that seluniums ARE still made. They have their place, like everything... it's my impression that they handle spikes, overloads and heat better than silicon rectifiers... but I could be wrong. My Dad still has a Lincoln welder with a huge selenium stack in it... 100% duty cycle, 400 amps, at about 30VDC... of course we never push it that high... 1/4" 6018 rod runs smooth as butter though! Built in the fifities, must be over five hundred pounds of copper and steel laminated core in that baby, LOL! Hmm, trip down memory lane... um.. oh yeah! Welded up a part for the old man's wurlitzer with it! Just to keep it kinda on topic... --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.493 / Virus Database: 292 - Release Date: 6/25/03 |
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