DIY power supply for Technics SL1200/1210

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First, though, I very much now agree with Marco that the PS mod lifts the deck to another level. As I listened to a wider range of music and the new supply bedded in I was more and more impressed. Significantly more dynamic contrasts, more solid and deeper bass, more focus in the mid and treble.

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Excellent, John. I'm glad your PSU is doing the biz now it's running in. I was a little surprised at your earlier reticence ;)

The effect of power supplies is just *so* fundamental in all areas of hi-fi. As far as the 1200/1210 is concerned the fact is you haven't 'heard it' until you've added a decent off-board PSU!

Marco.

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Originally Posted by Marco

The effect of power supplies is just *so* fundamental in all areas of hi-fi.

Marco.

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It would be interesting to hear from someone with more circuit knowledge than I have, regarding the technical merits of the internal 3-transistor regulator in the Technics deck. Anyone?

John

genuine congrats to you jonners. I wish I had the brains/balls to take a soldering iron and a set of snips to my kit in the search for improvement. Alas I don't. The saving grace for me is that you have started to notice a real improvement with a psu. My ps1200 should clear customs soon and I'm glad to hear it wasn't £2mil wasted

Thanks, Muffinman. I've just heard that the Barking Audiophile Tax has been revoked so your final bill will be considerably less than £2m. :) Give the new supply a bit of time to settle in and I think you will be well pleased.

John

I see that Sound Hi Fi have recently posted details of their SL1200 power supply on their website. Interesting to see that they are critical of the internal regulator in the deck, and their approach is also to bypass it completely: http://www.soundhifi.com/sl1200/SL1200%20PSU.htm

John

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Originally Posted by jonners

I see that Sound Hi Fi have recently posted details of their SL1200 power supply on their website. Interesting to see that they are critical of the internal regulator in the deck, and their approach is also to bypass it completely: http://www.soundhifi.com/sl1200/SL1200%20PSU.htm

John

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Impressive.

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Originally Posted by jonners

I see that Sound Hi Fi have recently posted details of their SL1200 power supply on their website. Interesting to see that they are critical of the internal regulator in the deck, and their approach is also to bypass it completely: http://www.soundhifi.com/sl1200/SL1200%20PSU.htm

John

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It would be very interesting to compare it with the KAB PSU; I know how significant the effect of that is on a 1210. I think I might make a trip to Sound Hi-fi at some point and bring my KAB-modified deck along to compare with their modified version. I'm sure the exercise would be educational for both parties ;)

Their Jelco S-shaped detachable tonearm (shown in this month's HFW) also interests me.

Of course I would also do a full write-up of events on the forum :)

Marco.

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Originally Posted by Marco

It would be very interesting to compare it with the KAB PSU; I know how significant the effect of that is on a 1210. I think I might make a trip to Sound Hi-fi at some point and bring my KAB-modified deck along to compare with their modified version. I'm sure the exercise would be educational for both parties ;)

Their Jelco S-shaped detachable tonearm (shown in this month's HFW) also interests me.

Of course I would also do a full write-up of events on the forum :)

Marco.

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All the Jelco arms look interesting:

http://www.jelco-ichikawa.co.jp/e_tone_arm.htm
http://www.jelco-ichikawa.co.jp/img/...m-sa750_01.jpg

Yep, it looks a bit more 'substantial' than the Technics arm. I've no idea whether or not it would sound any better, though. I guess there's only one way to find out!

Marco.

is there a schematic for a DIY PS?

i'm wondering if there was something at DIYaudio on this?

i'm gonna check it out straight away