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Show Us Your Sonys!!!

For all you TA-N7B owners, I've ask EW to measure the maximum cap length that can fit in the cans on the TA-N7B. Glenn tells me it is non-trivial, so may take him a bit to get it done. Once I hear back from him I will let everyone know what the max length available to us is. Or, perhaps EW will decide to post his findings here.

I'm giving some thought to designing/building an external capacitor bank to connect to the amp using Nichicon KG Gold or Super caps.
 
It's not that big a deal if you follow the instructions I sent you (which ofcourse come from master Mirko :) ), takes about 15 minutes or so to get them out I think. I'm sure a skilled dude like EW can do it even faster.
 
Mirko:

I hate you :yes:

Please remove the rack and put each power amp on top of each other, then I will hate you more :yes:

Then put the yamahas vertically and the sony on top of them. Then I will hate you much more. :yes:

I was just about to order a beautiful rack for my kenwood tt, xa7, 5650, tae88 and tons of cabling but I canceled this after looking at the picture.

Enjoy both listening and looking :thmbsp:

And a sonic report please to finish vfet movie if you will be able to listen to rather than continuously looking at them. It was 5 years ago that I saw a unique page mentioning an amp called ta-8650 in japanese characters. Then only one page by Howard in english in whole internet mentioning 4650 that I made one of my best friend's in Australia through his site. I bought 1 nonoriginal 5650, then 4650 power module still to be able to hear vfet sound, after blown speakers then finally my mint 5650 when there was no info on vfets. I sent all info I found up to then to Axel saying hi while his terrific site was almost empty. And now finally this pic! the cover pic for the book is from Mirko Axel.

PERFECT :yes:

my 5650 : it does not shine now as it did in its first 6-7 months. I have never seen such shining vintage equipment, in soft cottonlike appearance, no plain silver pioneer. I think I should use its cleaning cloth:yes:
 

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EW confirms (thank you very much :thmbsp:) that there is plenty of room for a 120mm long cap. That is good news and the hunt continues for the best available (without breaking the bank, of course). Thus far, the new 27,000uf Chemicon is the winner. http://www.chemi-con.com/files/U36DU36DH9.pdf But, we've only just begun.

Glenn, please take a look on a closeup of the "Granite" base:
Did you get now my subtle German humor ... ??
Now I see the B-1. Didn't recognize it in the first pic without the C-1 face.

Edit - OK, placed the order for the caps mentioned above. If you want in on this you best speak now or forever hold your piece. They are $15, each, plus shipping, taxes, etc. Let me know ASAP as there is a 20 piece minimum and ordering a 'few' in the future will not be possible.
 
Extended Chimney

I tried and I found another tricky solution to help better heat transfer using already available method inside the amp. No help to make the room colder of course:D

I put a cartoon chimney on top of amp:
After turning the amp, 45 minutes later, the amp was not as hot as before. Both the top and especialy bottom part was colder. When I put my hand in the opening under the amplifier betwen amp and table to control the temperature of bottom part, I noticed air flow and I felt coldness on my fingers suddenly. I can say this was effective as %20-25 on top and %45-50 on the bottom.

Then I removed the cartoon box chimney:
After 10 minutes the amp was warmer and one screw on the bottom part was only touchable for half a second only and I just hit my elbow to wall when tip of my finger got burned. Touching to that never took 1 minutes. I tested how air flow changes under the amp, putting the chimney and removing it continuously. Yes chimney helps better air flow, this is noticable.

Then I put the chimney again:
It took 15-20 minutes for the amp to get colder. It takes 3-4 seconds now for me to test that burning screw under the amp without geting burned but it is not dangerous now. Bottom part is like seaside on the beach with continuous wind.

chimney is the cartoon shipment box of a radiator. It is 38 x 17 x 67 cm.

I will test again tomorrow but this is effective. I dont want to remove it while listening now. A widescreen tv prevents it from being seen on a table constructed having a chimney especially when amp is in lower shelf in a multishelf table. Almost hidden chimney.

This may be due to the specific room conditions too.

A dangerous try!! with any possible sideeffects, but works.

http://en.wikipedia.org/wiki/Chimney
so this chimney causes according to the formula approximately a 0.02 cubicmeter/second air flow, and this equals to 72 cubicmeter/hour airflow. Ti=35, Te=30, C=0.65

when I look at the link below, I saw that this pc fan causes 76.2 cubicmeter/hour air flow ! almost equal
http://www.pc-fan.pl/product_info.php/products_id/231?osCsid=51cce005cb616c0e4772c037eb5b0b91
or these:
http://www.svc.com/af12025l.html
http://www.quietpcusa.com/Noctua-He...ized-92mm-Fan-CPU-Cooler-NH-U9F--P135C35.aspx

am I right?? If so this is effective without any noise and interference.

EDIT: In a 3 floor building including roof, if you have a ready chimney of a stove,oven etc, constructing a pipe from closed system rack to that, you get 4 pc fan with the danger of soot and smoke on to the system. Or simply you can put the system into your unused, really unused fireplace of whole building, some valve units or decorative pentods with vfets would look good :) But a decorative chimney-rack in front of the wall with wide TV gives practical 2 pc fan preventing noise, interference, replacement of fans every year.

mesut
 

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I tried and I found another tricky solution to help better heat transfer using already available method inside the amp. No help to make the room colder of course:D

I put a cartoon chimney on top of amp:

that's so ghetto LOL

You know, they make very thin laptop coolers.
 
Beautiful Sony's Mirko,Just Remarkable that you can gather them all together like you do!
I have downloaded your Photo's and will use them as Screensavers~Thanks and Enjoy,Mark.
 
TA-N7B owners - have ordered the new 27,000uf/80V caps. Delivery is 7 weeks. If I missed anyone, please get in touch with me so your needs can be added to the order. Now I am only one (1) 2SJ18 with rank 5, 6 or 7 away from having my TA-N7B rebuilt.
 
mesut_BALCI: interesting setup... but as Damage says, I am sure there are more elegant solutions :)

Glenn: thanks for the order, and hope you can still find that 2SJ18 bugger!
 
yes, one possible wallpaper usage by me too. terrific picture, you are wonderfull Mirko, does it worth? yes of course, and if you dont want some of them one day, you can easily sell just using AK.

Giving equal or more air flow of a pc fan, decorative glass pipes as multy chimneys extending from the top of amp which sits in lower shelf would look wonderfull and maybe more practical to me than a fan in long term usage. 2 decorative suitable big vases as chimneys on the table would be decorative solution too. Only holes to table for vases and covering for opening betwen table and top of amplifier. Cut one rectangular area, drill holes to it, place long pipes to this, put this on top of amp, use a plexiglass for cut rectangular area of table,drill it the same way for pipes to go through, also use some suitable decorative gold rings aroudn pips to hide drilss to plexiglass. Possible 40cm of extensions on the table. One time decorative and maybe much better solution than bigger heatsink, lowering the bias etc. Maybe a near light shines well through these at night too. Strange ideas to work on when it is the top point affordable to reach and there is nothing to do more on equipment.

Is there anyone here replacing chips inside sony cd players and getting good result?

Glenn: ta-n7 worths every effort, you have a ta-n7 and only 1 missing 2sj18 now for you to get wonderfull musical experiences.
 
TA-E77ES Preamp

Popped the top on my TA-E77ES to see what makes her tick. Must be the digital model as I've not found a single main-spring anywhere. But, what I did find was an excellent quality parts build. Those nice power supply caps are Nichicon's Great Supply caps. Not many pieces from the factory came with anything that good (other than the TOTL Yamaha gear, of course). Very nice build on this unit.

SonyTA-E77ES001.jpg
 
Glenn,

It looks like you have the rare non-digital version: TA-E77ES ?
Otherwise you should have S/PDif i/os back right.

Sony used those caps on the TA-F555ESII and the original TA-F777ES in '83, probably in others as well sonce those remote early 1980s times.
Can't remember what's in my E80ES but I think they were (and quite probably still are) Elna "For Audio" (?) or those Nichis ?
 
Here is a pic of the rear of the TA-E77ES. It has the ability to switch three video inputs, similar to switching a tape input/output. But, has no processing capability. Also, as I do not have an owner's manual, what are the two sets of inputs on the top-left of the pic that are marked "Adaptor" used for? This is also a dual-voltage model.

SonyTA-E77ES003.jpg


Nice preamp Y B-2. How's she sound?:scratch2:
Sounds and functions great. Just noticed (thanks to Restorer-John's tip) that there is a low level buzz when I turn the volume all the way up with no input. John has the fix which I will do as soon as the service manual arrives.

Also, a nice TAE-8450 preamp on eBay. Pretty rare.
 
Nice pre Glenn !

I think the Adapter in/out's are for use with an EQ of sorts, if I recall well...but not entirely sure.
 
Per Axel's TVK, 1987-9 and it is the rare non-D (digital) model. Have the matching TA-N77ES, as well. They make a great pair with the amps big red meters.

Here is my latest Sony. Is the TC-2850SD dolby cassette player. Wife said she wanted a cassette player to record her students (HS French teacher). So, just viewed this as an opportunity. :yes: Oh, yeah. Was $15.
 

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Good grief! It's my old TC-152SD come back to haunt me! Sony's first, and one of the very first, portable stereo cassette recorder with Dolby B with Cr02 capability, circa 1974. The later 153SD had a bail covering the piano-key switches, so I'm at a loss as to the age or chronology of this one. It's the spittin' image of the 152.

The 152 used a 120 microsecond playback EQ for the newly- introduced CrO2 tapes; this allowed it to get out to 15kHz at -20dB, which was amazing at the time. In fact, the whole thing was amazing. In the space of two Philips 150 Carry-Corders you had high-quality stereo recording capability. Screw some ECM-16 tietack mics in your ears and you were a portable binaural recording unit.

And don't forget one of the earliest examples of a ferrite head. Sony called it "Ferrite & Ferrite". It had extra ferrite.

By the way, the CrO2 playback standard was later changed to 70 microseconds which gave better S/N but killed the extra headroom. C'est la vie.

Of course, like all things Sony of the era, mine developed an endearing little hiccup. Every once in a while, without warning or pattern, the motor would suddenly lose speed, then catch itself and servo back up to speed again. On playback this would make a nice CHEEYOOF! sound that ruined more than one interview/field recording/mix tape. Eventually I took it to a nice concrete floor it hadn't met and introduced them.

But when it worked, it was great. Hope yours is a debugged version.
 
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