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Post by MartinT on Apr 11, 2015 23:19:55 GMT
Take care, I bought some for some experiments making floating feet. They are extremely powerful and can break up if allowed to snap together. Don't let them near your watch, either!
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Post by ChrisB on Apr 12, 2015 7:15:23 GMT
And you intend to pass a cartridge over these magnets?
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Post by Mr Whippy on Apr 12, 2015 8:03:22 GMT
With shielding, and enough clearance. Might work as good as this bloke's effort:
Even gets it to run backwards. Neat.
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Post by Mr Whippy on Apr 12, 2015 11:55:13 GMT
Anyone got or had a Meridian 201 preamp? Bought one with a missing output socket (left).
Time for another Youtube link, I think.
There was a better one with footage from a Caterham 7. It's gone though.
My fav Chris Rea vid. Great sound and I do like his no-nonsense workman-like style of playing.
Great sound and visuals - and marriage of the two.
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Post by Mr Whippy on Apr 13, 2015 19:40:56 GMT
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Post by Mr Whippy on Oct 25, 2016 19:00:58 GMT
A PROJECT! - WITH - PICTURES!! OH YES... Well, I got me Revox 790, armless, recent-ish. It was a bit of a bargain at £54 + £20 carriage. In a bit of a state (and still is). Stripped it. Cleaned control panel, platter and plinth. Plinth had a light bloom with grazes showing dark. Initially went over it with a scouring sponge, which only seemed to make matters worse, so went over it with a Brillo Pad which gave an even finish and and polished it with silicon car dash pad to get a nice finish. The soldering iron was brought out of retirement and I rebuilt the power supply. Basically it's three three pin voltage regulator stages with one for the motor and two for the arm. It still in need of some clamping diodes, so haven't tested to see if the motor actually works. Bought some mains cable to replace what was fitted. Supposedly 6 amp rating, but it looks really nasty, so I'll have to get something else Stripped the Nextel coating on the chassis as it was marked and looked tired. Most came off in the bath with water, but the section under the platter will need paint striper. Not sure what to replace it with just now. The mains suppressor capacitor was pretty shagged - but hadn't actually shorted, and has been replaced. Polished the dust cover with Duraglit Wadding and looks quite a bit better. The fittings are snapped off, which does allow it to be reversed. In normal use the front has a flat face and the rear is sloped. It doesn't look right to me so I might reverse it. That's about it for now.         |
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Post by MartinT on Oct 25, 2016 19:55:32 GMT
Great update - keep them coming.
You could go for an industrial Hammerite finish to replace the Nextel?
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Post by Mr Whippy on Nov 14, 2016 23:56:48 GMT
Bit of a sod for diving into the guts of something before the current item interest has yet to be got working. Still to get diodes and power lead for the the Revox - not to mention the top plate being painted, plus an arm fitted. Anyway. About 18 months ago I spotted a Yamaha P2100 amplifier and thought - A-ha! Reading around, found some used it in their system, despite it being intended for the professional market. Decided to keep an eye out for one. What came up tended to be pretty bashed, which I imagined would be the case, and a bit more than I was wanting to pay. Recently, though, one came up in not bad condition and faulty which I won costing about £60 + £30 carriage. On arrival, the top was whipped-off and I was quite taken aback by the size of the transformer - it's HUGE! A MONSTER!! Really! I then saw one channel wasn't connected, and then saw the driver stage showing signs of obvious distress. Further ferreting about, I deduced - oh yes - that the output stage had made the ultimate sacrifice with all four output devices shagged. The fuse was still intact, so it wasn't all bad. In bits now and looking for some parts, in particular some power resistors: wirewound 0.47R 5W. Standard ones easy enough to get hold of, but the original ones have mounting legs for stability and I would like to get replacements, if I can. None on eBay or Farnell. Wondered if anyone knew of a source for them. Will probably end up using standard ones with ceramic beads to offer some stability.      Love this bloke's videos. |
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Post by MartinT on Nov 15, 2016 6:03:58 GMT
That looks like a hunky bit of kit. Try Mouser for the parts.
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Post by alaska on Nov 16, 2016 10:15:06 GMT
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Post by MartinT on Nov 16, 2016 10:44:52 GMT
In what world was that poster created?  |
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Post by Slinger on Nov 16, 2016 17:57:40 GMT
Bloody Theme for bloody Young bloody Lovers? Bloody ear-worm, that's what it is, or whatever the equivalent is when you keep finding yourself picking up a guitar and playing snatches of it. My old band used to play several Shadows numbers, but unfortunately not that one, so I never learnt it.
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Post by Mr Whippy on Nov 16, 2016 20:04:19 GMT
It does have that effect, Mr S.. One of my 3 fav Shadows' tunes with Atlantis and Wonderful Land being the others,
Found this and was quite surprised at it being in stereo. Good sound:
Sounds just like Hank. Was lead to Mr Springer from young Chloe Chalmers version. She does OK for just being 13 at the time:
Sorry Chris, but Al C's version of Apache didn't cut the rug for me. Like this traditional take though:
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Post by pre65 on Nov 16, 2016 20:06:59 GMT
Posting error. 
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Post by Mr Whippy on Nov 16, 2016 20:16:43 GMT
I have to do it manually and I can't tell what is a lower case L, or a capital i.
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Post by Mr Whippy on Nov 17, 2016 16:49:57 GMT
That looks like a hunky bit of kit. Try Mouser for the parts. Aye. It's quite hunky.  Quite fancy the P2200. Basically, an extra set of output transitors, power supply increased to +/- 80v from 50v, and, of course, the meters. Oh yes... Had no luck with the emitter resistors from Mouser. In the end went for these:  Bit of an overkill being 100Wers, but they were cheap for what they typically cost. Output trannies aren't cheap these days. The ones Andre mentioned elsewhere are £13 each from Farnell. After much ferreting about I've gone for some MJ21193/4s at about £5 each. Might have found the cause of the output failure. A tant capacitor in the bias stage is shorted:  A couple of diodes seem a bit dodgey too. Strangely enough, the techy guy in the video found the same on his P2200. And so the cost steadily rises. Looking forward to getting it working, though. Couple of great tracks from Dion's comeback album of '89. Did a great acoustic set on Rodger Scott's Radio 2 show at the time. Taped it but lost a bit of top-end on it with frequent playing on a portable: Love those tympanies... Listen out for his recollections of Howlin' Wolf. Quite amusing: Is that really cuddly Paul Simon!?! Some nice opening shots: |
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Post by Mr Whippy on Dec 7, 2016 21:02:46 GMT
A week with no internet. However did I manage?... It did prod me into a bit of diy activity. This time I was detoured from the P2100 to a Technics SL-P1200 CD player. To be honest, I made the detour a couple of days before losing the www and was really pleased at getting one to work (I do have 6 in total. I just like the design). Faults found with the motor drive panel and switches on the control panel:    ] Somewhat motivated, I checked all lasers and found that 3 of the 5 non-working (I bought Jerry's which is the 6th), and found 3 lasers working, which was a bit of a surprise, leaving 2 not. One was the from the first I bought, and the other was from the last one bought. The laser in this one appears to have been a scrapper from another as the ribbon cable was snapped in two and torn elsewhere and the case cracked and broken. It will be interesting to see if the laser from a 111 can be made to work. Interesting to find that all the four springs on the laser chassis all have different compression rates and are coloured-coded:    Never heard this before. From 1973. Absolute - STONKER!!! And another: |
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Post by MartinT on Dec 7, 2016 21:08:47 GMT
Nice motor, that. Like a miniature version of the SL-1200 motor.
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Post by Mr Whippy on Apr 23, 2017 23:44:32 GMT
What a day! What a day, I've had. Replaced the panel switches on a SL-P1200 (25). Put the panel back, and found the "Stop" was sticking. Thought the switch must be faulty so out came the panel and another switch fitted. Panel replaced - and still the same. Out with the panel and looking at the switch cover, found it had been damaged and glued at some point and was sticking on the bottom edge of the surround. Put a drop of oil on, and replaced it. Worked. But then I found the "Next Track" didn't work. Panel out once again and checked the switch was OK. Saw 3 dry joints on the ribbon cables that connect the panel to the main board. Renewed all 45 joints. That's it, I thought. Panel back again, but still not working. Panel out one more time and a look with a magnifier. Checked it 1,2,3, 4 times and found a small bit of solder flashing shorting two joints. Cleaned it off and replaced the the panel yet again. This time, it worked. Thank God. Done the same four times previously without any trouble.  JUST the laser to sort out now. Fitted one from another player. Some can fit a laser from any old player - without issue. Not me. Not me. I have to suffer. Do you ever wonder why your life has to be the way it is? I do. Some discs would play OK and some wouldn't. It was also noisey and taking time reading discs. Also, it was noisy when stopping, and took some time to do so. Girding me loins, I tried adjusting the height of the laser platform that positions the disc above the laser. Didn't help totally. So, that only left fiddling with the laser presets. Not really a good idea, having no test gear to help. Did have me mobile through, and took a photo of them to go back to. Well, I was on HOURS! For quite some time it was much worse than it was originally. Luckily, however, at some point I got "in the zone". All the easy discs were playing and it was just Sarah McLachlan's "Mirrorball", Stephanie Kirkham's " That Girl" and The Blues Band's "Official Blues Band Bootleg Album, that had to be awkward. The Gods began to smile and I got the real pig, "Mirror ball" to play. I then tweaked them for "That Girl", and got it to play OK. At this point, I tried all the discs I had at hand, and all played without problem. Not only that, there was no noise when the laser read the TOC and it was reading the discs faster. It was also zipping from track to track again without noise as the servo wasn't having to flog it's guts out. Lastly, when it stopped, it did so in a gnat's whisker, and also without noise. Previously it took some time for a disc to come to rest. I was really chuffed. |
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Post by MartinT on Apr 24, 2017 5:20:09 GMT
My SLP-1200 was the same, it skipped on some tracks but not others. I had to return it in the end.
You are VERY BRAVE fiddling with those pots. Once down that path, it's very hard to get back to a working area again. Well done!
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