Old Dual Idler TTs

[Gordon Steadman]

I picked up a couple of old Duals today for peanuts. Both of them are attached to some crappy old amplifiers all in one box. I only want the motor units and am about to strip out all the electrics but..... I am not sure if the motors are mains or if they work off part of the transformer and at what voltage. I don't remember my 1019 having a transformer but you never know your luck - if you don't know what you are doing!!

The models are 1010 and 1211. The arms are total crap too but then I intend to use them for test decks with various home made arms fitted.

[Firebottle]

If you've still got the 'crappy old amplifiers' connected then power them up and measure the AC voltage across the motors with your meter. That is if the motor windings have 2 wires.

Be careful my good chap.

If there are 3 wires coming out of the motor winding then this might be used to provide a lower voltage feed to the 'crappy old amplifiers', whether they are valve or SS.

Feel free with more questions, any photos would help with multi wire motors.

:) Alan

[Audio Al]

Hi Gordon
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Normally at this point I would jump in with a humorous comment ,
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But today I think I need to be more positive
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And ask for some extra information / technical data

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Were the ordinary or dry roasted peanuts :D

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:door:

[Gordon Steadman]

To Al, its always a joy:)

To Alan, care is my brother's middle name. He, like you is an electronics engineer. In order ensure his safety, he used to ask me to 'put your finger there':eek: Shocking!

Pics attached and I have the service manual!! I intend stripping out all the gubbins as the arms on these are rubbish. One of them doesn't work at all but has a good plinth and the one in the pics has the heavy platter and works. So its swapsies plinthwise. I'm going to set it up so that I can swap arms easily.

The manual (which I will send you via email) 'seems' to indicate that there is no power supply as such, just a capacitor across the switch. I assume the voltage selector will merely put a resistor across to reduce voltage so in theory at least, I should just be able to connect mains to the switch!! Some hopes huh! The grey lead is to the motor!~!

[Firebottle]

Looking at the manual it seems that the motor is multi voltage 110/150/220V, so mains in when set for 220V is just the ticket.

:) Alan

[Gordon Steadman]

Looking at the manual it seems that the motor is multi voltage 110/150/220V, so mains in when set for 220V is just the ticket.

:) Alan

So I just have to figure out which is the mains in wire:lol: Its a nice ribbon with at least ten wires! It seems a safe assumption that it will be red and black - maybe - perhaps!

I'll feel braver in the morning and have a play.

Thanks Alan

[Gordon Steadman]

I found the mains voltage in and wired it up, plugged it in and was rather pleased with myself as the deck ran happily from that so junked all the crud. Lubricated it all and left it running for an hour or so this morning and it was fine.

Just got back from delivering and setting up a hi-fi system for someone I know and switched it on again and went to make a coffee. Came back to a nasty smell and smoke pouring from the motor:eek: ...oops.

The other deck is a 110 volt jobbie. Oh well, shit happens. The platter and bearing are really good so it going to be invention time to get a decent test deck going. The ex AR platter and bearing I use are noisy as hell so drive me nuts when I am listening to them in spite of the fact that it is only for testing out arms.

Made a good profit this morning so I get €10 less as that is what I shelled out for the two Duals:lol: