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Post by greenmartian on Dec 6, 2023 15:44:05 GMT
I am sure this question has an easy response, but it is not in my service manual. The AMI "H" I am restoring is a manual select 100 with Letter/Number options of A-K and 1-10. However, the Playmeter-Annunciator seems to be the same one used on the 200 selection models and, therefore has Letter/Number options of A-K and 1-20. How do I set the Playmeter to have the Annunciator Drum not count and include the Numbers 11-20 in the selection process? Obviously, when these are included the Playmeter will count the records incorrectly as it turns with the Magazine and the record indicated as playing will not match the record which is actually playing. I suspect the positioning of the Counter pins within the Annunciator Drum would be the likely correction, but I have not been able to correctly determine the appropriate inclusion or exclusion or positioning of these. As always... any and all help would be greatly appreciated.
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Post by jukenorman on Dec 6, 2023 17:38:58 GMT
I'm not really sure if I understand your question! The annunciator aligns with the drum so that record A1 indicates A1 on the annunciator and so on. The playmeter (popularity) is incremented by a solenoid when a record is placed on the turntable. Since you cannot make 11-20 selections, they will never be placed on the turntable so the playmeter solenoid will never operate for them.
Norman.
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Post by greenmartian on Dec 8, 2023 2:56:58 GMT
I guess I was confused by the magazine on both the 100 and 200 having 100 slots, but the 100 only using every other slot for records which makes every other slot in the magazine empty. However, the playmeter runs in coordination with the magazine and if the numbers are sequential, the 200 would count them in natural order but the 100 would need to count them and by-pass ever other number when counting. I was, and still am, confused how the same playmeter counting 20 records in each letter group (A-K) for 200 songs can indicate the proper sequence of play as the 100 play with only 10 records in each letter group (A-K) 100 songs. If all the unused slots came after the used slots in each letter group (A-K) I could understand the playmeter to magazine numbers matching, but, with every other slot being left unused, the matching numbers seems somewhat illogical. I don't understand how the playmeter can just ignore every other record slot when each of those slots (11 - 20) IS represented on the playmeter wheel. Thanks for the response Norman. I guess I just don't understand the physics of two wheels with 200 slots/pins corresponding to each other but the smaller wheel counting only one-half, every other one, of the pins as they turn synchronously to each other. This old mind can't wrap around the analysis of that. Thanks! :-)
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Post by jukenorman on Dec 8, 2023 12:02:02 GMT
Sounds like you don't have the correct annunciator strip.
Norman.
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Post by greenmartian on Dec 16, 2023 20:00:25 GMT
I have this entire restoration completed and this is one beautiful pink and black machine with sound quality that is exceptional for a mono box. However, I still can't get the annunciator drum number to match up to the number selected from the magazine and playing on the TT. The annunciator is linked to the magazine by a rubber hose clamped, by typical hose clamps, to both its camshaft and that of the magazine. In theory, each complete turn of the magazine results in an equal full turn of the annunciator drum. This, however, is not the case in actual function. After only one complete turn or selection, the number selected, and accurately being played, is not the number displayed on the annunciator. Even when I press the 'reset lever' button for a full turn of the magazine, which resets the playmeter, the counter showing what is playing does not match the selection. I have tried tightening and loosening the clamps in numerous combinations, but the results remain unchanged. Any solution or suggestions would be greatly appreciated! :-)
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Post by jukenorman on Dec 17, 2023 11:21:46 GMT
This is a query that would be much more easily resolved if we could have look at it! My memory is that there is a fine adjustment that can be made by loosening three screws to align the annunciator? If that doesn't give enough adjustmant, again my memory is that the annunciator can come off and be moved a gear tooth or two as a rough adjustment before making the fine adjustment? Maybe if you posted some pictures, it might become clearer exactly what your issue is?
Norman.
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Post by greenmartian on Dec 24, 2023 4:08:42 GMT
Norman... I appreciate your suggestions and I'll try to find the adjustments, rough and fine, to see what changes are possible. In another AMI question, the 'H's TT motor was shorted out. It was a 115 volt 50 cycle motor and the only other AMI replacement motor I have available is identical in size, shape, and appearance and fits the mounting plate exactly as the original but it is a 115 volt 60 cycle motor from a "J". Can I use this motor even though the cycle is 60 not 50? Will the record speed and thus the sound be altered.
Thanks,
Marty
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Post by jukenorman on Dec 24, 2023 11:31:05 GMT
To the best of my knowledge, I don't think there's such a thing as a 115V 50Hz turntable motor for an AMi H - it's the same motor as 60Hz but with a sleeve - usually a spring - on the motor shaft to increase its diameter. So if you want to use the J motor on 50Hz, fit the motor shaft sleeve from the H motor.
Norman.
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