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Garrard sp25's disco driver 80

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jbl_man View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jbl_man Quote  Post ReplyReply Direct Link To This Post Posted: 13 January 2013 at 11:12am
While we are on the subject of old Garrard turntables,does anyone remember their direct drive disco turntable? it was more or less a copy of the early technics SL1300 (which of course later became the SL1200 with the slider pitch control,instead of the rotary ones).....Garrard introduced it shortly after their belt drive era...just after the Zero 100sb and 86sb and sp25 mk5....i cant remember the model number,it only seemed to be around for a year then vanished.....would have been around 1978-79 i reckon.


Edited by jbl_man - 13 January 2013 at 12:44pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mhamplification Quote  Post ReplyReply Direct Link To This Post Posted: 13 January 2013 at 12:23pm
Originally posted by jbl_man jbl_man wrote:

While we are on the subject of old Garrard turntables,does anyone remember their direct drive disco turntable? it was more or less a copy of the early technics SL1100 (which of course later became the SL1200 with the slider pitch control,instead of the rotary ones).....Garrard introduced it shortly after their belt drive era...just after the Zero 100sb and 86sb and sp25 mk5....i cant remember the model number,it only seemed to be around for a year then vanished.....would have been around 1978-79 i reckon.


Ian was it the DD131

http://www.ebay.co.uk/itm/GARRARD-DD131-TURNTABLE-/251212932398?pt=UK_AudioTVElectronics_HomeAudioHiFi_Turntables&hash=item3a7d75252e
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jbl_man Quote  Post ReplyReply Direct Link To This Post Posted: 13 January 2013 at 12:40pm
Well done Sir!  Yep that's the one Martin,they didnt seem to catch on, (maybe to expensive new?) so doubt if they sold many....people probually just paid the extra few quid and bought the Technics.




Edited by jbl_man - 13 January 2013 at 12:42pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jbl_man Quote  Post ReplyReply Direct Link To This Post Posted: 13 January 2013 at 12:47pm
And here is the SL1300,you can see the similarity.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote funkyparrot Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2013 at 4:36pm
Originally posted by ollie80 ollie80 wrote:

Yes they were used in Radio stations for DJ idents wernt they.  Nice to have them on a mobile show.  

Hi John! Did you have them specially recorded for you?  ie your name check etc?
 
Long gap in between question and answer, but I've found some of the old jingles and I'm trying to find a way to make them audible, but you can't include audio files, trying to post a link to my website is also causing a problem. 
try www.funkyparrot.co.uk/page8.html  ignore the state of the page and click the blue note. It works!
 

 



Edited by funkyparrot - 17 May 2013 at 4:57pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote unsound Quote  Post ReplyReply Direct Link To This Post Posted: 24 October 2014 at 7:23pm
Hi.  New member and stuff.  I used to mobile at Nottingham University (my better known disco was "unsound" and after I sold it I set up "universal joint" built mostly out of spare parts.  

Unsound used SP25mk1s with Deram cartridges and a custom-built mixer.  The best bit was the amp - Radford SC22P preamp and Radford STA100 power amp (2*KT88s per channel).  First speakers were 4 Baker Group 50s but we got fed up of blowing them up, then we tried Celestion G18Cs, then Goodmans 12Ps (in two 4*12 columns).  

Universal joint used a de-auto'd AT60 and a 2025 with 9TAHCs, a virtual earth mixer I built that was never quite right, and an old Geloso 30 and a Linear 50 (both with 2*EL34s) and speakers were on each side a random 15" and a random 12" that I happened to have lying about - in cabinets made of inch mahogany ply that I got for the price of chipboard when someone ordered it in a local woodyard and then vanished.  

Anyway, I'm here about the disco driver 80s.  I just bought on ebay a sort of console - no mixer in it - with two disco driver 80s.  Alas with 9TAHCs in.  Anyway - how do I set up the tracking weight, and how do I get at the cartridge securig screws  to change the whole cartridge - the headshell seems not to come off?  
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GregM Quote  Post ReplyReply Direct Link To This Post Posted: 24 October 2014 at 7:38pm
Hi Unsound, welcome to the forum

You bagged the £54 'console' then, well done one of us anoraks was going to, I'd only for the SP's alone.

I'm sure there's a 'proper' way to do it, but I tend to:

Slide the whole counter weight towards the back of the arm, moving small amounts at a time until the headshell end lifts off the stay, then move the weight back until the whole arm is floating on the pivot point.

I then hold the silver part of the weight still while turning the black numbered bit around until the 0 (zero) is facing up. This gives you a fully balanced arm with zero weight on the stylus.

Then I turn the whole weight (silver and black bits together) back along the a towards the headshell until
2.5 is facing up - this gives you 2.5 grams weighting on the stylus.

In battle you may need more than 2.5 grams or get away with less, but that is console, club floor, music style and speaker location to console dependant....
Remember, if you don't want to hear the answer, don't ask the question!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote unsound Quote  Post ReplyReply Direct Link To This Post Posted: 24 October 2014 at 7:48pm
Yes it was that one.  

Many thanks.  I'd love to get a pair of the white round Derams in there but they are as rare as rockinhorsepoo.  Into a really high impedance they sounded quite good and the big thing was the tip mass was really low and the tracking weight quite low (we ran about 2 grams) so when oafs jogged the console the damage to the vinyl was relatively slight!  But as I said, it looks as if getting at the cartridge securing screws could be tricky.  My other option would be some cheap magnetics and a pair of phono preamps.  

I did once see a sort of "gallows" arrangement.  The mobile operator had a frame about 7 feet high that was bigger than the console, and the console was suspended on string from teh frame.  Result - when oafs jumped about there was no lateral displacement so no jumping.  But changing the records and switching teh switches was tricky!  

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Post Options Post Options   Thanks (0) Thanks(0)   Quote woody2 Quote  Post ReplyReply Direct Link To This Post Posted: 25 October 2014 at 1:11am
Originally posted by unsound unsound wrote:


I did once see a sort of "gallows" arrangement.  The mobile operator had a frame about 7 feet high that was bigger than the console, and the console was suspended on string from teh frame.  Result - when oafs jumped about there was no lateral displacement so no jumping.  But changing the records and switching teh switches was tricky!  



fairground rides used to hang the decks off bungees
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jazomir Quote  Post ReplyReply Direct Link To This Post Posted: 25 October 2014 at 12:34pm
Originally posted by jbl_man jbl_man wrote:

And here is the SL1300,you can see the similarity.


I had the SL1700 for many years - pretty much a SL1300  but with no control knobs above the Start contol on the RHS. Gave me stirling service for 20 odd years.
For sidefills, can we have two enormous things of a type that might be venerated as Gods by the inhabitants of Easter Island, capable of reaching volumes that would make Beelzebub soil his pants.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote funkyparrot Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2014 at 8:42am
Anyone interested in this? NJD twin deck. Sitting at £45 at the mo. Ends today, be quick, if you are...

www.ebay.co.uk/itm/Wow-L-K-Retro-Vintage-70s-80sNJD-disco-turntables-decks-in-North-Norfolk-/321558234205?pt=UK_AudioTVElectronics_HomeAudioHiFi_Turntables&hash=item4ade5d445d
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Post Options Post Options   Thanks (0) Thanks(0)   Quote unsound Quote  Post ReplyReply Direct Link To This Post Posted: 04 November 2014 at 7:42pm
Gaining slowly.

It appears to be a design function that the arms are stiff to move in and out when on FULL lift.  The SP25s did not do that.  

One Sonotone 9TAHC is mullered (fork broken).  I have sourced a secondhand one after some hunting but I think I will put two magnetics in in stead, really cheap rubbish for now.  I no longer appear to own any really high input impedance preamps and trying the surviving 9TAHC into the nearest disco mixer's aux in gave the right level but a truly horrid squawking high-mid.   I mean I could run into a 1meg DI box and use the +20DB boost and indeed I have a 4-channel one but it would be a bit Heath Robinson.  

I hope that that will not too greatly aggravate the switch-on-and-off-spark-crack from the DPDT (why?) switches the original builder put in.  I have got a couple of 0.1muff spark quenchers off ebay, and will bypass the negative side of the DPDT switches and use the quenchers on the positive side.

Original builder also for some eccentric reason wired the DIN output sockets earth 2, left 1, right 5.  But the twerp on ebay who sold me some DIN to phonos failed to tell me they were non-standard - let to 1&4 commoned and right to 3&5 commoned, so actually they work with it!  

I probably need to source a graphic EQ as well - both of mine are built into PA rigs.

A couple of spare drive belts would probably be prudent, too.  
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