The LarryLenco

lofreek · 7th October 2011, 05:45 PM

I completed it earlier this year and forgot to show it off here at diy!

kevinkr · 7th October 2011, 07:07 PM

Very cool. Give us some detailed description now that you have posted the pictures.

The arm looks very interesting and the whole thing looks like it was executed with a high degree of care.

Appears your tone arm has an air bearing?

lofreek · 7th October 2011, 07:22 PM

A friend had a Lenco L75 which had been unused for decades. I bought it and held on to it for a couple of years while I plotted what to do. Lenco Heaven was my major resource. I reasoned that if I purchased the top plate from Peter Reinders, I would be able to dispense with the laminated plinth, which would simplify construction and possibly yield a better result. I like maple, so I purchased a 4" thick maple block from Timbernation. I milled it out on my drill press using forstner bits. I did a lot of soul searching about what arm to get and decided on the Trans Fi Terminator, which is a linear tracking air bearing arm.

I was very fortunate that the idler wheel had no flat spots nor had the rubber gone wonky, and the motor was dead silent. So, once I got the motor springs and wiring sorted out, no noise. It's a wonderful turntable.

lofreek · 08:44 PM

Lencos have an unusual drive system. All aspects of it need to be correct. The geometry of the idler wheel is crucial. If not tangent in both vertical and horizontal planes, it emits a scrubbing noise which will be clearly audible. Mine was way off! It is very easy to remedy, however. The motor springs cannot be bound up, and the motor power wires must not be pinched between the motor and the plinth. Once those issues were successfully dealt with, no noise from the motor.

vinylkid58 · 7th October 2011, 09:13 PM

That's a very nice looking table. Congrats!

jeff

Nanook · 10th October 2011, 12:51 AM

is that a pnp5 I see?

woodturner-fran · 10th October 2011, 09:03 PM

Very nice - I just picked up an L75 today that I intend fitting to a PTP. This is my second lenco, I use another in a heavy damped plinth I made a few years ago.

They are superb performers, on a par with the best I've heard. I'd love to hear one up against a 401 or 301 someday - I reckon it would equal them.... and the lencos canstill be had for small $$

Fran

Salas · 10th October 2011, 09:12 PM

Very nice indeed. Did you put this one through the Itch yet? Can it readily work?

woodturner-fran · 10th October 2011, 09:28 PM

No - all I can tell so far is that it runs. It's slow to come up to speed so and I can feel a little play in the motor spindle so it all needs a good service. I fit a teflon disc to the bottom of the main bearing as well which takes down the noise another bit as well...

This is a project to work on over the winter!!! I gave €70 for it, and the PTP is about the €100 mark I think, maybe more.... but still for some some effort you have a fantastic TT for small money.

The other lenco is hooked up to the itch though and very shortly I'll be putting on an album - "larry jon wilson" - superb album!

Fran

Fran

Salas · 10th October 2011, 09:36 PM

Nice winter project. A labor of love. Wishing success.

7th October 2011, 05:45 PM	#1
lofreek diyAudio Member Join Date: Jan 2006 Location: Missouri	The LarryLenco I completed it earlier this year and forgot to show it off here at diy!

7th October 2011, 07:07 PM	#2
kevinkr diyAudio Moderator Join Date: Sep 2004 Location: Boston, Massachusetts Blog Entries: 6	Very cool. Give us some detailed description now that you have posted the pictures. The arm looks very interesting and the whole thing looks like it was executed with a high degree of care. Appears your tone arm has an air bearing? __________________ www.kta-hifi.net

7th October 2011, 08:37 PM	#4
lofreek diyAudio Member Join Date: Jan 2006 Location: Missouri	Lencos have an unusual drive system. All aspects of it need to be correct. The geometry of the idler wheel is crucial. If not tangent in both vertical and horizontal planes, it emits a scrubbing noise which will be clearly audible. Mine was way off! It is very easy to remedy, however. The motor springs cannot be bound up, and the motor power wires must not be pinched between the motor and the plinth. Once those issues were successfully dealt with, no noise from the motor. Last edited by lofreek; 7th October 2011 at 08:44 PM.

10th October 2011, 12:51 AM	#6
Nanook diyAudio Member Join Date: Feb 2004 Location: Chinook Country.Alberta	great looking table... is that a pnp5 I see? __________________ stew ☮ -"A sane man in an insane world appears insane."

10th October 2011, 09:03 PM	#7
woodturner-fran diyAudio Member Join Date: Jan 2006 Location: Ireland	Very nice - I just picked up an L75 today that I intend fitting to a PTP. This is my second lenco, I use another in a heavy damped plinth I made a few years ago. They are superb performers, on a par with the best I've heard. I'd love to hear one up against a 401 or 301 someday - I reckon it would equal them.... and the lencos canstill be had for small $$ Fran __________________ Visit www.tirnahifi.org!!


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7th October 2011, 07:22 PM	#3
lofreek diyAudio Member Join Date: Jan 2006 Location: Missouri	A friend had a Lenco L75 which had been unused for decades. I bought it and held on to it for a couple of years while I plotted what to do. Lenco Heaven was my major resource. I reasoned that if I purchased the top plate from Peter Reinders, I would be able to dispense with the laminated plinth, which would simplify construction and possibly yield a better result. I like maple, so I purchased a 4" thick maple block from Timbernation. I milled it out on my drill press using forstner bits. I did a lot of soul searching about what arm to get and decided on the Trans Fi Terminator, which is a linear tracking air bearing arm. I was very fortunate that the idler wheel had no flat spots nor had the rubber gone wonky, and the motor was dead silent. So, once I got the motor springs and wiring sorted out, no noise. It's a wonderful turntable.

7th October 2011, 09:13 PM	#5
vinylkid58 diyAudio Member Join Date: May 2005 Location: Victoria, B.C.	That's a very nice looking table. Congrats! jeff

10th October 2011, 09:12 PM	#8
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Very nice indeed. Did you put this one through the Itch yet? Can it readily work?

10th October 2011, 09:28 PM	#9
woodturner-fran diyAudio Member Join Date: Jan 2006 Location: Ireland	No - all I can tell so far is that it runs. It's slow to come up to speed so and I can feel a little play in the motor spindle so it all needs a good service. I fit a teflon disc to the bottom of the main bearing as well which takes down the noise another bit as well... This is a project to work on over the winter!!! I gave €70 for it, and the PTP is about the €100 mark I think, maybe more.... but still for some some effort you have a fantastic TT for small money. The other lenco is hooked up to the itch though and very shortly I'll be putting on an album - "larry jon wilson" - superb album! Fran Fran __________________ Visit www.tirnahifi.org!!

10th October 2011, 09:36 PM	#10
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Nice winter project. A labor of love. Wishing success.

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