I've been offered an old kenwood DD turntable for next to nothing. No idea what model as I have yet to see it but I understand that it is designed to run of 110V AC.
Is it possible to adapt it to run off 240V AC by just replacing the mains transformer or is it more complicated than that?
Is it possible to adapt it to run off 240V AC by just replacing the mains transformer or is it more complicated than that?
You may be able to find a suitable replacement mains transformer or just use an auto-transformer to step down the 240V to 120V.. If the table has a stroboscope for 60Hz only (unlikely) you may have a little trouble setting speeds..
Yes, a step-down transformer seems the easiest way forward, (I hadn't even thought of that that option!).
From what I recall it does have a strobe ring on the outside of the platter. Is there any way I can get this to work in the UK? Seems as a shame not to be able to use the strobe .🙁
From what I recall it does have a strobe ring on the outside of the platter. Is there any way I can get this to work in the UK? Seems as a shame not to be able to use the strobe .🙁
I've just come off the 'phone from the current owner of said turntable and he informs me it's a 3070.
He just want's shot of it as he cannot use it due to the 110V AC configuration. I figure it would be worth having a play with so I think I'll buy it and see what happens.
He just want's shot of it as he cannot use it due to the 110V AC configuration. I figure it would be worth having a play with so I think I'll buy it and see what happens.
Some (most?) turntables that use a line-powered neon strobe have two sets of markings on the platter for 50 and 60 Hz operation.
dangus said:
This tt has unfortunately only one set of markings. Is there a way I can get the strobe to work properly by using another light source??
Hi,
count how many times it turns in three minutes. 100T+-0.25T should be good enough.
Forget the strobe. It changes with the mains frequency.
count how many times it turns in three minutes. 100T+-0.25T should be good enough.
Forget the strobe. It changes with the mains frequency.
AndrewT said:
Good idea. I think I was just after the pose value with a nice big strobe on the tt 😎 but so long as it sounds good then that's all that maters.
Since it has a strobe, it will have an adjuster. If it had a synchronous motor you would have had to change a pulley size. You can always make a strobe disk to suit 50Hz to sit on the turntable, or you could get someone to make a little strobe light operating at 120Hz - that would have pose value!
I ran an American Garrard deck in the UK for several years using a mains light bulb in SERIES with the motor. It glowed dimly and was only slightly warm - it was mounted inside the box. It's cheap and very easy to do, but you need to know what you are doing.
You could have it outside in a nice desk lamp and make a feature of it! It's also possible to use a lamp dimming type circuit but they tend to be electronically noisy and may give you grief in the audio department.
I ran an American Garrard deck in the UK for several years using a mains light bulb in SERIES with the motor. It glowed dimly and was only slightly warm - it was mounted inside the box. It's cheap and very easy to do, but you need to know what you are doing.
You could have it outside in a nice desk lamp and make a feature of it! It's also possible to use a lamp dimming type circuit but they tend to be electronically noisy and may give you grief in the audio department.
Do a search on this forum and you will find an LED strobe I designed. It can do 50Hz or 60Hz depending on crystal choice.
lt_texan said:
Maybe I am thick but I have tried to search for Strobe by EC8010 and learnt a lot on threads read but no strobe circuit... Can anyone point / link me to the right thread?
Hi spikeyfaz again!
I, remember I used 2.2 microF or 3,3 450V for 110Fan to 220V.
Regards zeoN_Rider
I, remember I used 2.2 microF or 3,3 450V for 110Fan to 220V.
Regards zeoN_Rider
FYI, with Lenco turntables, you can't move them across the pond- having a different mains frequency (50 v 60 Hz) causes the spindle to turn at a different speed (or something like that - the idler arm runs off the spindle?). I don't know if this will be a problem with your turntable, but maybe someone else does...
The motor pulley on the Lenco is replaceable for 50/60Hz operation. Hard though to get the part these days I'd imagine.
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