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Show Us Your Sonys!!!

pm 94 will always be the most good looking design to me. I still like one thing on its class A sound better than vfet sound, oily sticky smoothness of hits. 5650 plays more accurate with better fidelity when volume knob is when under horizontal position, it is noticable sometimes so I cannot increase volume. At that time it sounds purily like classA in addition to vfet advantages. With tae88, sound is in another level.
 
I have noticed at least 2 TAE-8450 with white side panels. They seem to be
the European versions, am I right?
 
totem, this is very interesting information. Mine, a European version, appears to be original as the panel has a numbered sticker with Sony importers logo of that time. Why they're white is a mystery to me. Maybe demo machine, beats me :scratch2:

Oh and hi to you too Axel :wave:
 
Hello Samuel !

The CD-94 you have was distributed in Japan in several versions, like the later PM-99: slightly different side finishes, a little badge added etc strictly for the japanese market.
The ES units have in the US a little "ES" badge added at the bottom right corner ; Sony's early FET units had an "F" badge added at the top right corner... only in Japan.

So the white panels may be "distributor version" - custom made for a market, specific reseller or, indeed, demo...
 
Axel,

you should also post the other stuff, in order to shock us all !

Stoffie,

it looks a little bilt like, as if you have to unmount the complete main PCB, before you can access the two potentiometers. Drilling a hole could be an alternative, but where to drill ?


Totem, Samuel,

The woodpanels on all my 8x50 series units have no number or logo printed on them. If your white panels have such labels, it´s most likely, that these parts were available only as accessories.
 
Unda Maris said:
It looks a little bilt like, as if you have to unmount the complete main PCB, before you can access the two potentiometers. Drilling a hole could be an alternative, but where to drill ?

The woodpanels on all my 8x50 series units have no number or logo printed on them. If your white panels have such labels, it´s most likely, that these parts were available only as accessories.
Click to expand...
Pulling the board is not helpful as it does nothing about moving the pot so that the metal support can be removed.

In stating that drilling is an alternative, are you saying that it is OK to spray Deoxit inside an Alps volume pot?

The side panels on my TAE-8450/TAN-8450 pair have nothing on the inside face. But, they will soon be replaced with oiled ribbon mahogany (see pic in post #709). Sent the wood and old panels off to merrylander today for him to make up. The new panels will be almost twice as thick as the old ones, which should also add a nice touch. More pic's when they all back together.
 
OK. Thrity minutes of work looking through the magnifying lamp, a hot soldering iron and plenty of solder wick and, bingo......the Alps is out for inspection. A little tedious, but not as bad as it could have been. Here are some pic's. First the nudies, top and bottom. And, then the Alps.

TA-E86Btop.jpg

TA-E86Bbottom.jpg


What's the consensus? Deoxit good? Should I order some of that new Deoxit that is supposed to be harmless to the various parts inside pots?

TA-E86BAlps3.jpg
 
Got it. Thanks!! That **** costs as much to ship as it does to purchase (hazardous material). Same with all Deoxit products, unfortunately. Glad it goes a long ways.
 
Hey B2, what are the 8pin DIP ICs on the board? I've repaired a few ALPs black beauty pots by removing the wiper balde spring altogether and shifting it down a fraction of a mm when the scoring on the plastic film was too bad for spraying. Alps blues have the same problem, the wiper is too sharp and scores the film especially with excessive knob twiddlers
 
restorer-john said:
Hey B2, what are the 8pin DIP ICs on the board? I've repaired a few ALPs black beauty pots by removing the wiper balde spring altogether and shifting it down a fraction of a mm when the scoring on the plastic film was too bad for spraying. Alps blues have the same problem, the wiper is too sharp and scores the film especially with excessive knob twiddlers
Click to expand...
Thanks for the tip. Hopefully, I won't have to disassemble to that point, as the bottom on the blue is open and is easy to hit with Faderlube by simply removing the vinyl cover on the bottom side (once removed from the PCB). I will defintely be doing some measuring before putting all back together. Don't want to do this twice.:no: Sure do miss the test gear I used when in research (recording scopes to several 100MHz, MCA/SCA, chart-recorders, etc.).

Only 8-pin DIPs are the Fujitsu switches.
 
Well, after a long winded, extensive overhaul process (which we could have never done without Mirko's great advice), and some hiccups along the way, my N7 is now again in top condition.

It's playing right now. Well, wow... I am hearing so many things I have never heard before, I don't know the right words to describe...

Will post some more pics when I finally get my rack to put everything in.
 

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Kristof - Beautiful work!! Makes me wish for a TA-N7B of my own. Will be doing similar things to a B-2 shortly and will try to do as well with the photography on same.

Also, did anyone watch this crazy TA-F6B auction? Two nutty bidders and one happy seller. Or, was it worth it? http://cgi.ebay.com/ws/eBayISAPI.dl...MEDW:IT&viewitem=&item=190077438659&rd=1&rd=1

BTW - There is a TA-E88 listed on eBay. But, I haven't been to Viet Nam since 1969. :D
 
Been doing some low volume listening, some jazz, some 80's rock, some classical, it all sounds very very nice. It's already way past midnight so can't test it at normal listening levels. That will have to wait until tomorrow. Anxious ! :D

There is a TA-N7B on the UK Ebay right now, shipping would probably be insane to the US though...

Now only remains to take out and clean the pot on the pre, but I don't feel ready for that yet :D (Mirko scared me).

Good luck with your B-2 project Glenn !

And 500 bucks for a TA-F6 does seem quite excessive !
 
Stoffie:

giving serious confidence for an 30 years amp, it looks like a new bought krell :sigh:

me too, me too:banana:

there is a ta-n7 ta-e7 combo here in Turkey in another city in the sell locally. If he sells only ta-n7, I am planning to buy one selling my unique tuner, mini alnico monitors, my passive attenuator, and some cables, but I still dont know. I like 5650 sound more than ta-f7 which is tiny ta-n7. 5650 power section althogh lack power, a bit speed and relaxed sound of ta-f7, sounds better in most of midband even with higher resolution at some areas and noticably more musical in full pleasure. Also is not ss-like at all, that seems to me more natural. It seems 5650 is more suitable to sony x559, 779, xa7 series players than ta-f7, I dont know. If I dislike resulting sound or loose curent balances, I will loose my rare alnico monitors, extremely succesful passive.

Or when passive throgh rec out buffer sounds better than tae88 line stage itself(when it cannot create virtual room at some records enogh, then buffered passive sounds himm yes better to me, much much more open, more relaxed, more musical, joyful, tiny bit moe energic, lacks resolution a bit and that first rate presentation), I can switch to passive arranging everything and adding a button to passive box so that I can add a passive active mode to tae88.
 
Stoffie said:
Been doing some low volume listening, some jazz, some 80's rock, some classical, it all sounds very very nice. It's already way past midnight so can't test it at normal listening levels. That will have to wait until tomorrow. Anxious ! :D
There is a TA-N7B on the UK Ebay right now, shipping would probably be insane to the US though...
Now only remains to take out and clean the pot on the pre, but I don't feel ready for that yet :D (Mirko scared me).
Good luck with your B-2 project Glenn !
And 500 bucks for a TA-F6 does seem quite excessive !
Click to expand...
Most amps sound better loud. The trick is to get them to sound good at reasonable (low for me ~70-75db) listening levels.
Am afraid it will be a while until I can afford one. Then I'll fly over to carry it back in my luggage. :yes:
Unless the TA-E88B is considerably more difficult than is the TA-E86B I've been working on, it will be a piece-of-cake compared to what you have just accomplished.
Thanks. Got everything for the B-2 except the binding post mounting blocks and silver hook-up wire on order (all Cardas rhodium over silver connectors).
 
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