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PostPosted: Fri Jun 16, 2017 4:43 pm 
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Joined: Mon Jun 01, 2015 4:49 pm
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Location: Coquitlam, BC, CA
I bought this for "parts or repair" and did in fact repair-I made pinch rollers for it until I can find some real ones, and a few other tweaks. There's many features on this old deck, and a lot of adjustments too... I like it!


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PostPosted: Fri Jun 16, 2017 5:37 pm 
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Joined: Tue Feb 28, 2006 6:38 am
Posts: 231
Location: GTA, ON, CA
That's a nice deck and worth restoring!

Are you a member at the Tapeheads forum;

http://www.tapeheads.net/forumdisplay.php?f=6

Through that forum, I found a source for belts and cam motors for my Nakamichi decks.


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PostPosted: Fri Jun 16, 2017 9:37 pm 
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Joined: Tue Apr 15, 2008 8:18 am
Posts: 6556
Location: Toronto, ON, CA
Dual made great decks and I am not sure why the direct load feature was not more popular. Pioneer had it in the late 1970s as well.

The lack of a door allowed for dramatic improvements in sound quality as well as pitch stability. I still have a large number of tapes made on a couple of Dual decks.


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PostPosted: Sat Jun 17, 2017 10:39 pm 
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Joined: Mon Jun 01, 2015 4:49 pm
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Location: Coquitlam, BC, CA
This one is one of my favourites, it was pretty high-end for the late 70's and it has a rare auto-reverse system that doesn't flip anything, it just reads the tape in reverse! A couple of oddities though are that the transport has to be completely disassembled to adjust the solenoids although I've found a couple of ways around that and the fact that it doesn't have a chassis! Other than the panels there's two C-channels and a brace from the rear to the side. Mine doesn't have the cross brace either but it's still a heavy beast. The rear has a DIN jack, output level pots and a port for an IR receiver, now that and the remote would be pretty cool. Anyway I'm going to get right into making or finding new pinch rollers, I don't think they're the right durometer (too hard) and trying to jam them harder into the capstans isn't the way to run a deck.


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PostPosted: Sun Jun 18, 2017 7:23 am 
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Joined: Fri Oct 30, 2015 7:52 pm
Posts: 303
Location: North Gower, ON, CA
rustee wrote:
I bought this for "parts or repair" and did in fact repair-I made pinch rollers for it until I can find some real ones, and a few other tweaks. There's many features on this old deck, and a lot of adjustments too... I like it!


Yeah, THAT is a really neat machine, I'm jealous.
Ott.


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PostPosted: Sun Jun 18, 2017 11:46 am 
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Joined: Mon Jun 20, 2011 6:19 pm
Posts: 421
Location: Eastern Passage, NS, CA
I do remember this deck very well, the Dual C 839 RC, one of the top deck sold in the late 70s, and early 80s. I almost bought one in 1980 while stationed in Germany, going for the Aiwa AD-6900 instead.
If you like this medium, you have a very nice cassette deck in your possession, not only nice, but also one of the best.

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A force de contempler la mer, on fini un jour par la prendre.


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PostPosted: Sun Jun 18, 2017 2:11 pm 
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Joined: Mon Jun 01, 2015 4:49 pm
Posts: 393
Location: Coquitlam, BC, CA
I also have the service manual in English which is of course a wealth of information. 20 VRs and 8 inductors to adjust-but really the left channel needs a tweak, that's all. Of course I'd like to give it a full alignment if I could find a tech I trust, I don't know any yet.


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PostPosted: Fri May 04, 2018 12:34 am 
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Joined: Mon Jun 01, 2015 4:49 pm
Posts: 393
Location: Coquitlam, BC, CA
I just pulled this out today, it wasn't quite working up to standards but I realised I had over-adjusted a solenoid and that I should reclean the belts, although they were advertised as new. Works like a hot damn, so easy to work on! Somehow I missed how to take out the solenoid assembly the easy way-and it's right in the manual. Well maybe I'm getting better at it, but back then I did make perfectly good pinch rollers for it, they weren't the problem.


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PostPosted: Fri May 04, 2018 6:08 am 
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Joined: Mon Mar 10, 2008 6:48 pm
Posts: 324
Location: London, ON, CA
Still have and use a Dual c939 deck. Matches the Dual 721 I also have. One of the knobs broke off the 939 about 5 yrs ago but got lucky. A seller on ebay had a whole bunch of parts for it for under 10 bucks.

stereo3


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PostPosted: Fri May 04, 2018 11:21 am 
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Joined: Mon Jun 01, 2015 4:49 pm
Posts: 393
Location: Coquitlam, BC, CA
Dual did make many cassette players I was surprised to know,likely more popular in Europe. The 839s bi-directional transport is too cool, I'd take that over tape monitoring any day! I have a Dual 1209 turntable to go with it as well, they'll both end up in an old 1960 tube console that has a Dual 1007 in it. I mean, if I ever get around to it.


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