Garrard lab 80 wiring....

Nanook · 16th July 2005, 09:16 PM

I had asked here for comments regarding modifying an old Lab 80, and basically it was suggested that I not do it. However the thing was free, and not a high end "collectable" model, so I think I will do it anyways, hopefully creating a fun , manual garrard Lab 80, (no mechanicals, no electronics, just an on off switch and the speed selector)

The motor has three wires going to it. Red , Blue and Green.
The Green is a chassis ground, I assume the Red is AC positive, the Blue AcC negative.

Am I correct or will this be a shocking experience?

As usual, any and all help is appreciated.

EC8010 · 18th July 2005, 01:22 PM

You might be right, but I doubt it. Garrards typically connected the on/off switch in the middle of the motor, so those wires wouldn't corrrespond to mains. If there's a neon strobe light, one of those wires might be a 90V tapping using the motor as an autotransformer. There are various possibilities. I suspect that you haven't actually found the mains input to the motor.

Could you take a photograph of the underside?

dnsey · 18th July 2005, 03:23 PM

The mains connections are usually to a terminal block, under a clear plastic cover.

Nanook · 18th July 2005, 10:06 PM

here's what's under the plinth of the Lab80. I guess I could just wire the motor to a switch directly as long as it is rated for 120V, 10 amps or something like that (don't know the voltage rating on the motor but it is a North American one)

attached is a sketch of the circuit as seen from below. Thanks to any and all...

Nanook · 19th July 2005, 06:40 AM

so I took the plunge and just hooked up the wires. Red to +120V, blue to - (return), and green to ground. My god, this is what everyone means about these Garrard motors.... completely silent (ya it was spinning).

So the next step is a fuse, a good switch and remanufacturing the idler wheel..

randytsuch · 29th July 2005, 12:52 AM

Hi,
I just took a chance, and bought one cheap from ebay. I also got a good deal on a rb250, so I am going to see if I can mount it. The seller said it probably needs a new idler wheel, so I am going to look for a place that refurbs them.

Randy

Nanook · 29th July 2005, 03:40 AM

You may try the turntable factory
Although I have never seen any of his work, He has posted here and at other sites regarding the work he does. He also was kind enough to send me a very prompt personal email response to a question that I had, and I can only imagine how good his customer service is. I have to believe that this is the basis for his business If his customer testimonials (provided on his website) are even remotely true (and I have no reason to believe that not to be the case---anyone here have personal experinces?) his customers must be very happy.

http://www.theturntablefactory.com/

There are others out there as well.

I am in no way associated to the turntable factory

"watch out where the Huskies go and don't you eat that yellow snow"

randytsuch · 29th July 2005, 05:49 AM

They look like the place to send for a complete refurb.
I have this delusion of refurbing it myself. I have found a few places on the net that say they can repair old idlers, have to pick one of them, and send it out.

Randy

johnny c · 27th November 2009, 06:23 PM

i have the whole manual for the Garrard lab 80 turntable if anyone needs the info,i also have a lab 80 turntable in working condition,it just needs a little work and i haven't had time

16th July 2005, 09:16 PM	#1
Nanook diyAudio Member Join Date: Feb 2004 Location: Chinook Country.Alberta	Garrard lab 80 wiring.... I had asked here for comments regarding modifying an old Lab 80, and basically it was suggested that I not do it. However the thing was free, and not a high end "collectable" model, so I think I will do it anyways, hopefully creating a fun , manual garrard Lab 80, (no mechanicals, no electronics, just an on off switch and the speed selector) The motor has three wires going to it. Red , Blue and Green. The Green is a chassis ground, I assume the Red is AC positive, the Blue AcC negative. Am I correct or will this be a shocking experience? As usual, any and all help is appreciated.

18th July 2005, 01:22 PM	#2
EC8010 diyAudio Moderator Join Date: Jan 2003 Location: Near London. UK	You might be right, but I doubt it. Garrards typically connected the on/off switch in the middle of the motor, so those wires wouldn't corrrespond to mains. If there's a neon strobe light, one of those wires might be a 90V tapping using the motor as an autotransformer. There are various possibilities. I suspect that you haven't actually found the mains input to the motor. Could you take a photograph of the underside? __________________ The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...

19th July 2005, 06:40 AM	#5
Nanook diyAudio Member Join Date: Feb 2004 Location: Chinook Country.Alberta	Garrard Lab80 wiring....con't so I took the plunge and just hooked up the wires. Red to +120V, blue to - (return), and green to ground. My god, this is what everyone means about these Garrard motors.... completely silent (ya it was spinning). So the next step is a fuse, a good switch and remanufacturing the idler wheel..

29th July 2005, 03:40 AM	#7
Nanook diyAudio Member Join Date: Feb 2004 Location: Chinook Country.Alberta	idler wheels... You may try the turntable factory Although I have never seen any of his work, He has posted here and at other sites regarding the work he does. He also was kind enough to send me a very prompt personal email response to a question that I had, and I can only imagine how good his customer service is. I have to believe that this is the basis for his business If his customer testimonials (provided on his website) are even remotely true (and I have no reason to believe that not to be the case---anyone here have personal experinces?) his customers must be very happy. http://www.theturntablefactory.com/ There are others out there as well. I am in no way associated to the turntable factory "watch out where the Huskies go and don't you eat that yellow snow"

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18th July 2005, 03:23 PM	#3
dnsey diyAudio Member Join Date: Mar 2004 Location: Shropshire, England	The mains connections are usually to a terminal block, under a clear plastic cover.

29th July 2005, 12:52 AM	#6
randytsuch diyAudio Member Join Date: Jan 2003 Location: LA	Hi, I just took a chance, and bought one cheap from ebay. I also got a good deal on a rb250, so I am going to see if I can mount it. The seller said it probably needs a new idler wheel, so I am going to look for a place that refurbs them. Randy

29th July 2005, 05:49 AM	#8
randytsuch diyAudio Member Join Date: Jan 2003 Location: LA	They look like the place to send for a complete refurb. I have this delusion of refurbing it myself. I have found a few places on the net that say they can repair old idlers, have to pick one of them, and send it out. Randy

27th November 2009, 06:23 PM	#9
johnny c diyAudio Member Join Date: Nov 2009	i have the whole manual for the Garrard lab 80 turntable if anyone needs the info,i also have a lab 80 turntable in working condition,it just needs a little work and i haven't had time

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