Goldring Lenco GL75 Transcription Turntable 

It's great that you have restored a GL75 Actually, you should change speed without it running, in the off position the idler is pulled away from the motor and turntable (unless you have lost a bracket that pulls it down from the turntable) No harm should come to it if changed during use, as the motor shaft is mostly tapered, not stepped.

On the tone arm, there's a straight bar with lines which goes into a hole on the arm The coiled arm fits into a hole in the base pillar, mine looks like a stiff stretched spring (it's probablu original) I didn't have the bias weight for mine, so i have a small (m6) nut on a thread

I don't know, but i guess the v blocks get worn at the bottom in time, haven't chhanged mine I came across several videos about the tone arm, and how to change the blocks Search for 'lenco tone arm' and there's a whole li9st of vids.

Yes I did see the videos and that prompted my question as to why and when they need changing. , I just put an album on now and it plays well . I will leave well alone until I notice something unusual. Thanks

I'm not familiar with that one, but while looking for info i came across this forum thread www.lencoheaven.net/forum/index.php?PHPSESSID=m6n4d8inhs443gdo354nik89m0&topic=2179.0

@@sparkyprojects thanks Sparky!

Sorry i haven't, that's the one with the electronic strobe speed control.? In general, if you have to clean the drive spindle etc, only use a scourer if possible, any sort of sanding can reduce the diameter. oil should ideally be 'sewing machine' oil, and very thin grease for bearings

I'm assuming it's basically the same construction, on the underside on the side of the shaft tube is a small screw, be aware that it is very short and can easily get lost.

Thanks for the quick reply. So in your video when you removed the platter with the shaft attached you had removed the small screw from the underside already? Do you think I damaged anything removing the platter from the shaft itself?

@@baijanshahzada1119 The top of the shaft is a taper i think, as long as you lifted it evenly you should be fine Just check the run out (wobble) while its running Easiest way to remove the platter from the shaft is to lift it and place several wedges around it to provide support, then hit the top of the shaft gently with a hammer (use a wood block on the top of the shaft to prevet damage) Don't hit too hard, you don't want to dislodge it, not drive it through the base

All tonearms are different, but basically disconnect the wires at each end, remove the tonearm, there's usually a couple of screws at the pivot, you should be able to carefully get access to the wires, solder the new wires to the old ones so when you pull the old ones out, it will pull the new ones through.

Make sure the bearings on the motor etc are oiled (3 in 1 oil or other light oil) The turntable should have spring mounts to isolate it from the wood base. this should reduce any mechanical noise. The hum you get through the speakers is most likely a ground loop. Carefully check the part i talk about the audio connections, the screen of the audio should NOT be connected to the turntable chassis, but the chassis should be connected to mains ground.

@@sparkyprojects hi. Great video. I have the mains ground connected to the motor. Will that serve? It has a contact crimped and is fitted to one of the motor screws.

@@simonheffernan1767 For electrical safety, yes, that's fine Though i would also recommend connecting a wire to the metal chassis, the motor is mounted on rubber,

As long as the motor is set for 240v (i assume you are UK), then no, the motor runs direct from the mains, the cartridge should be wired to cables to plug directly into your amplifier. When you wire the audio cables, be sure to only connect them to the cartridge wires, don't connect the screens to turntable ground, otherwise you may get hum.

@@sparkyprojects Thanks that's realy helpful.

@@sparkyprojects Hi my turntable has arrived in the post today from eBay. I have to make a plinth for it as it was taken out of an old radiogramam . It looks fine a wonderful GL 75, however the four mounting bolts on the mounting plate that go through springs have been bent a bit in tranzit. I'd like to send you a photo to ask your advice but I don't know how I could do that, should I just bend them back it looks possible? Also the wiring for the cartridge his just two of what looks like the original wires and I don't know how I'm going to connect them up to RCA plugs. Obviously soldier them, but as the wire looks so unlike interconnect I'm unsure as which is negative and positive and so on.

Are you set up for Google hangouts ? It may be easier for me to see and explain connections If the bolts will straighten then go for it

@@sparkyprojects hi thanks for your reply, I will set everything up for Google Hangouts. and then be in touch, your help is very much appreciated thank you.

If you look @10:44 you can see where the power cable is wired, Basically it should go to the switch and motor, The RCA cables go to the tagstrip. Go ahead and send me a photo sparky-projects.co.uk/contact.html

@@sparkyprojects Thanks I have only seen this I'll take a picture tomorrow and send it on