Most small desk fans use these motors. I like them because they are very easy to service, and they are nice and simple and reasonably durable if looked after.
Haha! That is a coincidence. Yeah I few drops of oil in the front bearing is all they really need. Thats what I do with my modern proline desk fan. I give some fresh oil every month. But now the rear cover doesn't line up anymore since the plastic tabs that hold it in place have worn away. I just run it with no cover on it now.
l do this with the extractor in my bathroom,but do both ends.There's a felt pad that acts as an oil reservoir on that one,it still clips together well but the screws went rusty years ago!
hi if i take out the motor and end up with a large coil on one side, can i wind another coil in the hole where the motor was and end up with a transformer. for example running 240v on the large coil side would produce high amps on the secondary side. if if reversed the inputs i should get like a few KV's outa this?
This was probably fitted with two coils (they're identical resistance) so that it could be run on the 220/250v european mains,with the two in series,or on the US/Canadian 110/127v systems.Usually the decks had a voltage selector for all four!When running on a 60cps system the
stepped drive pulley would need to be smaller as the frequency determines the speed,or the record would go too fast!
Some BSR ones had a winding on them to run the amp,especially in the cheaper decks!
Yes I think the Garrard Ultra we used to have had a similar motor. From what I remember it would have to run constantly as the amp was powered off it as well.
@AG3304 My JVC Nivico console stereo is 50/60 Hz and as such came with different size drive pulleys for the record deck shaded pole motor. The reel to reel tape deck came with different size pinch rollers for the same reason. That motor is a permanent split capacitor type but the capacitor does not need to be changed for 50 or 60 Hz. Both motors run off of 100 volts (Japan standard) from the main power transformer. That is tapped for 100,115,210 and 240 volts.
@AG3304 In regards to the BSRs having a winding on the motor to run the amp, such was the case with a GE child's record player I once had. Very minimalist design, at most 3 transistors in the amplifier to drive a 22 ohm speaker.
@Nivicoman l even saw one rigged up to an Alba stereo player years ago.But there wasn't enough oomph to drive the amp without much distortion and the little power lamp flickering.Sound was greatly improved when l fitted a transformer!
@AG3304 Another point with the GE child's record player motor-connecting that amp supply winding to 24 volts AC made the motor spin normally and there was enough voltage on the main winding to light a 6 watt fluorescent tube with no ballast.
@Nivicoman A sort of motor - alternator l suppose,such things were used on some older electric commuter or subway trains where the supply from the third rail or overhead was DC.A DC motor drove an Alternator to run the flourescent tubes,with a DC dynamo part charging the control supply batteries for the train.These also would run tungsten emergency lamps for if you "lost the juice" and the MA set stopped.
great motors especially the ones made by bsr birmingham sound reproducers, they run forever !!
DOWNONTFARM 2 years ago
Just a spot of oil every now and again,and,as you say,they run forever!
AG3304 2 years ago
Most small desk fans use these motors. I like them because they are very easy to service, and they are nice and simple and reasonably durable if looked after.
MrMoterKid 2 years ago
Funny thing.Just serviced one the other day!
AG3304 2 years ago
Haha! That is a coincidence. Yeah I few drops of oil in the front bearing is all they really need. Thats what I do with my modern proline desk fan. I give some fresh oil every month. But now the rear cover doesn't line up anymore since the plastic tabs that hold it in place have worn away. I just run it with no cover on it now.
MrMoterKid 2 years ago
l do this with the extractor in my bathroom,but do both ends.There's a felt pad that acts as an oil reservoir on that one,it still clips together well but the screws went rusty years ago!
AG3304 2 years ago
Mine didn't have that. The rear bearing in the fan was all enclosed in metal. I could only oil the front bearing.
MrMoterKid 2 years ago
hi if i take out the motor and end up with a large coil on one side, can i wind another coil in the hole where the motor was and end up with a transformer. for example running 240v on the large coil side would produce high amps on the secondary side. if if reversed the inputs i should get like a few KV's outa this?
Pyromadness 2 years ago
l suppose you could,but you'd be better off modifying a transformer l think!Frying tonite!?:-)
AG3304 2 years ago
shaded pole motors are great that one is much better :)
TheLaurencekid 2 years ago
A very neat and compact thing,made years before Philips went cheap and nasty.
AG3304 2 years ago
This was probably fitted with two coils (they're identical resistance) so that it could be run on the 220/250v european mains,with the two in series,or on the US/Canadian 110/127v systems.Usually the decks had a voltage selector for all four!When running on a 60cps system the
stepped drive pulley would need to be smaller as the frequency determines the speed,or the record would go too fast!
Some BSR ones had a winding on them to run the amp,especially in the cheaper decks!
AG3304 2 years ago
Yes I think the Garrard Ultra we used to have had a similar motor. From what I remember it would have to run constantly as the amp was powered off it as well.
oldgamingfart 2 years ago
There was probably a motor like that in a Garrard deck,they didn't know if they were a motor or a transformer!
AG3304 2 years ago
@AG3304 My JVC Nivico console stereo is 50/60 Hz and as such came with different size drive pulleys for the record deck shaded pole motor. The reel to reel tape deck came with different size pinch rollers for the same reason. That motor is a permanent split capacitor type but the capacitor does not need to be changed for 50 or 60 Hz. Both motors run off of 100 volts (Japan standard) from the main power transformer. That is tapped for 100,115,210 and 240 volts.
Nivicoman 1 year ago
@Nivicoman Your JVC Nivico console sounds a very versatile machine indeed!
AG3304 1 year ago
@AG3304 In regards to the BSRs having a winding on the motor to run the amp, such was the case with a GE child's record player I once had. Very minimalist design, at most 3 transistors in the amplifier to drive a 22 ohm speaker.
Nivicoman 1 year ago
@Nivicoman l even saw one rigged up to an Alba stereo player years ago.But there wasn't enough oomph to drive the amp without much distortion and the little power lamp flickering.Sound was greatly improved when l fitted a transformer!
AG3304 1 year ago
@AG3304 Another point with the GE child's record player motor-connecting that amp supply winding to 24 volts AC made the motor spin normally and there was enough voltage on the main winding to light a 6 watt fluorescent tube with no ballast.
Nivicoman 1 year ago
@Nivicoman A sort of motor - alternator l suppose,such things were used on some older electric commuter or subway trains where the supply from the third rail or overhead was DC.A DC motor drove an Alternator to run the flourescent tubes,with a DC dynamo part charging the control supply batteries for the train.These also would run tungsten emergency lamps for if you "lost the juice" and the MA set stopped.
AG3304 1 year ago
Cool motor! I've never seen one with a dual coil before
coolbluelights 2 years ago