LENCO - GL75 Project

[Alex_UK]

That 120rpm record sounds amazing given that it is almost as old as its revolution speed! Also notable that it play from the inside to the outside, the opposite of how most records play. Fascinating!

[Barry]

The Refelrence Lenco Pt CXIII - A picture paints a thousand words.

So here is a picture of the stock Lenco. It's hiding a few secrets! I thought I'd detail what's been done so far.




1. The platter has had a little polish. It's still not great and is a work in progress. I'll polish it a little every day or so until I'm happy with the finish. OK this is not strictly going to improve the performance of the deck but it sure looks nice!


3. The platter mat. This was filthy, so the disc has been polished and the mat has been cleaned and treated to some Autoglym rubber repair.

Looking good Andrew, but I wouldn't use anything other than warm soapy water and a nail brush to clean any rubber turntable mat. After all your precious records come in direct contact with it, and any 'additives' could damage the vinyl.

[Wakefield Turntables]

Looking good Andrew. What did you use to polish the platter and are you using an M55E with this one?

I used a bench polisher and alongside several different polishing agents. It's still a work in progress and needs some more elbow grease. I've spent a fortune buying elbow grease from Halfords . I'm honestly not sure Brian what I'm going to use. Might be nice to try something a little different.

That 120rpm record sounds amazing given that it is almost as old as its revolution speed! Also notable that it play from the inside to the outside, the opposite of how most records play. Fascinating!

There are a few modern day records that play outside / in. I think Jack White released one.

Looking good Andrew, but I wouldn't use anything other than warm soapy water and a nail brush to clean any rubber turntable mat. After all your precious records come in direct contact with it, and any 'additives' could damage the vinyl.

Thanks Barry. I never really give it much thought but thanks for the heads up.

[Wakefield Turntables]

The Reference Lenco Pt CXIV - If you know you know!

Sunday night, it's a bank holiday and another update. Well, it's a day off and an excuse to see what stuff I have lurking in the garage. Such oppotunities enable my to clear a little more space in the garage only to be taken up again in the attic! So the Lenco moves another step forward in that I have a few new things and routed out a few old things! The stock Lenco has benefitted from some TLC, it's still far from complete and still needs things like the tonearm, motor and platter refurbishing. I do these jobs when I feel like doing them, this is a fun project and not a chore. The platter is probably one of the most ignored part of any resto. I always check the underside of my platters for some clues. Here's the current stock platter



Now can anyone spot the two big problems here? Well firstly look at the amount of rubber on the underside of the platter, this will need cleaning away. Secondly, what does this say about the status of the idler wheel, assuming that it's still the same idler wheel. I haven't even bothered with checking the idler wheel at the moment, that's a job for another day. This platter needs a very good clean. Presently, that's exactly what's happening but in small sections, it's a labour intensive job but hopefully one which will yield good results. The idler arm and wheel can wait for another day.

And here with have a photo of probably the only new part to be installed on the stock deck yet. New rubber bushes for the mounting springs on the plinth. As you can clearly see the old ones are completely knackered and probably offer no isolation whatsoever which prevents me from trying to get the deck sounding like something new and original which has just been released from the factory.



The stock 75 has taken all the attention so far but here is the exciting bit. The first picture of the beginnings of the reference 75.



Bamboo from another old project. I'm not spending silly money on Panzerholz or Permali. Bamboo is excellent and gives great results, take my Garrard 301 build as a reference. Now you can see the exciting bit, it's a PTP 5 kit. I have always said that I think the ultimate distillation of the Lenco GL75 has to be the PTP 5. It offers so many things that I wanted to with the original Lenco build which started this thread and now this moves these ideas forward and I can experiment to see if I can get the deck sounding any better than all that experimentation what went on all those years ago. I found some solid core copper cabling which I'll use, well it's free and solid core (according to some) sounds better than litz based power cables (WE SHALL SEE) , forgive the sceptical nature of my post. Finally we have an idler arm and wheel, these will not be staying "stock" for very long and let's just say we have some nice new things on order. I'll say no more until they arrive.

Well that's about it. Stay tuned!

[Jimbo]

Great to see a PTP5 build and I am sure it will become an awesome project with major sonic potential. Always wanted to hear one and may indeed build myself one someday.

[Wakefield Turntables]

Great to see a PTP5 build and I am sure it will become an awesome project with major sonic potential. Always wanted to hear one and may indeed build myself one someday.

I got this one at a slightly cheaper price 3rd hand! There is no time limit on this one, just a bit of fun to pass the weekends away.

[Jimbo]

I got this one at a slightly cheaper price 3rd hand! There is no time limit on this one, just a bit of fun to pass the weekends away.

Great project to have ongoing and as you say fun one to do in your spare time. I thought I would have a lot more time in my retirement to crack on with projects but I seem to have so much going on now it is nearly as difficult to fit stuff in as when I was working!

[Barry]

Andrew, what is the PTP-5 kit for a Lenco GL75? Is it the bits and pieces shown in the last image?

[Wakefield Turntables]

Andrew, what is the PTP-5 kit for a Lenco GL75? Is it the bits and pieces shown in the last image?

Here you go Barry every you ever needed to know about PTP! http://www.ptpaudio.com/ptp-audio.html Many hundreds of people have built wonderful TT's based around thids design. All you need is the gubbins from a Lenco GL75, a plinth, a few bits of wire and your away!

[Jimbo]

Another PTP project and this is the best one I have seen. If I did one it would basically be this.

https://www.lencoheaven.net/forum/in...?topic=38364.0