Building high-end 'tables cheap at Home Despot II

Hi Justubes,

That would be L-75, L-78, L(GL)-88, L-(GL)-99.
There are other earlier models with heavy platters, but plastic idler wheels which are prone to warping like the L-61, L-68 and L-70 which shouldn't be dismissed as out of hand. I've got an American badged Bogen/Presto L-61 that has sounded great in unplinthed, temporary duty.

Retread the idler tire with an O-ring and it was off and running. Currently getting this wheel re-built after finding a reasonably priced re-building service.

If you're in the hunt, make Blue-In-The-Face's site a "Favorite":
http://www.btinternet.com/~a.d.richarson/hifi/lenco/heavy_lenco.html

Hi Fishwinker,

Been brooding about what could be causing your motor vibration ... and I'm still brooding ...

In the meantime, take a look at 4yanx's post from a while back and see if it applies.

04-27-05: 4yanx
"As a further aside, we've found that the proper "tension" placed on the nose end screw is such that it the cupped end just seats onto the end of the rotor spindle and allows free travel of the "springy" doo-dad (less than a millimeter). Too little tension causes slop and too much causes restriction. It is a very fine line and impossible to "see". It helps when you get it right to have one person hold the motor casing with one hand, and a small screwdriver set in the slotted end of the screw with the other, while a second person FIRMLY tightens the hold down nut. In our experience, tightening that nut otherwise almost always results in the screw tightening a bit along with it and mucking up the works. Too, if the nut is not secured tightly enough, it backs off - the screw along with it. On out first couple, the doo-dad was so frozen that we didn’t even know it was supposed to “give”. Getting the proper tension was a BEAR until we discovered that."

Is there a numeric designation on the GL Delta Lady?

Hi Mario,

Thank you very much for your continuing support. I've been listening to it as-is a lot today, and I love it. However, now that it's running, I've realised that it seems to be running too fast - the slider needs to be a lot closer to 33 than 45 when I'm playing a 45. If there's nothing wrong with the motor, and unless something very strange has happened to the electricity supply, I'm thinking that this must mean that the whole rotor/cone assembly is too far towards the nose bearing. I'll try adjusting the nose screw again tomorrow, but I honestly couldn't find any particular point at which the vibration reduced. It really is quite pronounced, and you can actually feel the plinth vibrating when the motor's running(the transport screws are completely free and the motor is suspended freely on its springs).

Hi, Fishwinker,

Another suggestion, I have run into a Lenco that actually had the cone assembly bent so that the rotor/cone assembly wobbled sideways, which also caused the idler wheel to wobble back and forth. To diagnose this, take the platter off, tun on the motor and see if there is any wobbling in the idler wheel or rotor/cone. If so, unless you can manage to straighten it out, you'll probably need a new motor, unfortunately.

Hi Fishwinker,

From your wiring above it seems like you have a European motor set for 220v. What is your local a.c.?

Is the Lenco in it's original plinth, with the springs intact?

Have you removed the motor to test on the bench? Did it still vibrate badly?

Apologies if you've mentioned this already, just trying to catch up.

Regards