337alanT system

Mark you are absolutely right my battery phono is not the safest bit of DIY Ive ever done and I already blew a set of opp amps because of it.
Still it will be redundant shortly I hope as battery's are a PINA as well.

Alan

update on the paradise phono stage, it is up and running now and playing some sweet music :)
It still a work in progress on some parts to get it working at its best, but as it is its still better than any other phono stage I have so I am happy but I will keep tweeking as one does with DIY :D
fist mod will be the transformers are producing to much input voltage which is just producing too much heat at the shunt regs so I will get a couple of 18v transformers and also couple the internal heat sinks to the outer case heat sink with some 6mm aluminium plate.

http://farm8.staticflickr.com/7367/1...f085d0c5_z.jpg
phono 1 by 337alant, on Flickr

http://farm6.staticflickr.com/5491/1...6a6a0612_z.jpg
phono 3 by 337alant, on Flickr

http://farm8.staticflickr.com/7422/1...43470464_z.jpg
phono 5 by 337alant, on Flickr

http://farm4.staticflickr.com/3679/1...f101a197_z.jpg
phono 4 by 337alant, on Flickr


Alan

Very nice Alan!
Do you have any links for the PCB's/kit and boxes? (Sorry if i've missed it in a previous post?)

ATB Mike

Mike
This is a link to the Paradise thread over on DIYAUDIO
http://www.diyaudio.com/forums/group...stage-121.html
The cases are from Modushop biz
Galaxy Maggiorato GX288 230 x 280 mm x 80mm deep
http://www.modushop.biz/ecommerce/cat037_l2.php?n=1

others have used the nice Naim style shoe box cases from audio flat
http://www.audioflat.co.uk/shoebox_case.htm
I think Andrew also sells them on ebay ?
and here http://theartofsound.net/forum/showt...-case-for-NAIM

Alan

Thank you sire!
I'll scavenge those in a wee while!
Atb Mike

Couple of new additions to the Reel 2 Reel collection, a Revox A77 and a Revox PR99 Mk2
Both are in good condition but needing attention the A77 needs a new capstan motor which I have but haven't had time to fit it yet and the PR99 plays well but is in need of calibration to sound its best.

http://farm3.staticflickr.com/2787/1...ae09018b_z.jpg
IMG_1119 by 337alant, on Flickr

Alan

Update on my paradise Phono
I have just replaced the power supply transformers due to an annoying buzz from mine and excessive heat at the shunt regs from the supply voltage being unnecessarily high.
I replaced them with a couple of 18-0-18v encapsulated torroidal from ebay these are dead silent and now the heat sinks are only hand warm
https://www.flickr.com/photos/695089...n/photostream/
https://farm3.staticflickr.com/2912/...d9361bd4_s.jpgPar 2

I also did the DDCR earthing under my Garrard and at the Paradise input and had to lift the ground connection in my pre amp and the result is I now also have complete silence with the pre amp flat out, so good result but I think with this grounding scheme comes a slight loss in transparency and air? may need to do some more work on that and experiment a bit.

Another result recently was the continuing process of teaching myself how to calibrate a Reel 2 Reel Player
The Revox PR99 Mk2 has now had a new cal/decal switch fitted and I calibrated the input, reproduce and record levels and Biased it for the Maxell UD XL1 tape and its now sounding very nice indeed.
[/img]https://www.flickr.com/photos/695089...n/photostream/[/img]

I tried to do the same about 6 months ago without a signal generator and made a mess of my Tascam BR20, fortunately I have now got that working better than ever as well
[/img]https://www.flickr.com/photos/695089...n/photostream/[/img]


Its still a work in progress though as I don't have anyone to show me exactly what to do, I'm only learning this from reading and the od Youtube video

Alan

Cant quite belive it but I have just bagged 2 more of the excellent Tascam BR20 Reel 2 Reel players off ebay with stands.
http://www.ebay.com.au/itm/2-x-Tasca...vip=true&rt=nc

ones a full Record/Playback machine and the other is a playback only but by the look of them they are mint condition, just hope its not empty boxes when I pick them up LOL.
I love these machines they are superb
Alan

They look great...I only have a akai one; not in same league...I agree with you that R to R is a fantastic medium .....at least i will be able to send mine to you for a fettling when needed:eek: