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Old 19th November 2012, 12:27 PM   #111
Trebla is offline Trebla  United Kingdom
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Quote:
Originally Posted by regal View Post

I was hoping by now digital amps would be competetive by now just because I like small and efficient, but I'm tired of waiting. Looking at the DIY efforts they just don't make sense yet.

For the money I don't think anything could beat a used $350 Adacom GFA so thats what I'm going to buy.
Class d amps (not digital), can be good. Even some of the cheaper ones have surprising abilities.
All this thread is doing, is pointing out that there are good designs from way back when.
I've never encountered an "Adacom", so i couldn't comment.
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Old 19th November 2012, 01:28 PM   #112
regal is offline regal  United States
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Originally Posted by Trebla View Post
Class d amps (not digital), can be good. Even some of the cheaper ones have surprising abilities.
All this thread is doing, is pointing out that there are good designs from way back when.
I've never encountered an "Adacom", so i couldn't comment.
Thanks, I did mean class D. To me its an interesting comparison and I think this thread has some merit for us DIYers

For under $500 bucks the best I could do class D would be something like a TAS5630 which really only does 100W per channel into 8 ohms (and thats really pushing it.) The old amps do much better. FYI the $500 Adacom is a NP design.

If I had the time I would wind my own torroids for a class D build and delve into that world or build a traditional SS amp, but really its not realistic to think one can do a decent 150W 8ohm per channel amp for the $350 I'm going to spend on the old Nelson Adacom GFA 555 (just wish it wasn't so big and heavy ).

I'll keep my DIY efforts for my headphone rig cause ultimately the quality of a system is dictated by the drivers, and I know I can't afford speakers that would justify the time and money for a top notch amplifier.

Just saying old amps have a place for us on our journey toward audio nivana

Last edited by regal; 19th November 2012 at 01:32 PM.
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Old 19th November 2012, 01:55 PM   #113
ilimzn is offline ilimzn  Croatia
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Originally Posted by regal View Post
the old Nelson Adacom GFA 555 (just wish it wasn't so big and heavy ).
ADCOM not Adacom. Getting names right helps a lot
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Old 22nd November 2012, 12:33 PM   #114
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I have replaced my McIntosh MA6100 and Marantz 2250 with dirt cheap Chinese 2020 chip amps and my listening pleasure has increased so much, it's unbelievable.
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Old 22nd November 2012, 07:30 PM   #115
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My pride and JOY.

After having used several "chibased" junk in our livingroom for years, my wife decided that THIS one was the one to use.

Click the image to open in full size.
__________________
Sooner or later you end up with TANDBERG
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Old 22nd November 2012, 08:19 PM   #116
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Originally Posted by lanchile View Post
The most common problem with SMD components is that some of them are so small that to troubleshoot or to replace them is a pain in the a$$! You must have Good eyes and steady pulse and do not mention those ic's that have so many legs the size of a hair...
My wife got me one of these as an 'aging' joke almost 20 years ago. I showed HER and started using it and now wouldn't be without it (one at work, one at home). Now and then someone at works asks me how I can work on the tiny stuff and I give them the visor. It's no big deal as long as your hands don't shake (too much). It IS 'fun' replacing ICs with .5mm lead spacing.

OptiVISOR

Bausch and Lomb Magna Visor is good too

Magna Visor ? Hands-Free Visor with interchangeable lenses : Bausch + Lomb

G
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Old 22nd November 2012, 08:36 PM   #117
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The old Tandberg receivers are lovely, and I have a soft spot for the old Japanese "garden of lights" receivers with the wonderful flywheel tuning knobs before varactors and digital displays took over. I'm curious about the guts of the Tandberg stuff - anything special?
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Old 22nd November 2012, 09:27 PM   #118
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Originally Posted by TANDBERGEREN View Post
My pride and JOY.

After having used several "chibased" junk in our livingroom for years, my wife decided that THIS one was the one to use.

Click the image to open in full size.
Hello

It's a superb TANDBERG amp.

I have myself a TANDBERG cassette deck.

Bye

Gaetan
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Old 22nd November 2012, 09:34 PM   #119
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Hello

Here's my last aquisition, a Sansui 881 receiver, nice built and superb look.

Bye

Gaetan
Attached Images
File Type: jpg Sansui 881-small.jpg (47.4 KB, 146 views)
File Type: jpg Sansui 881 inside-small.jpg (73.7 KB, 146 views)
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Old 22nd November 2012, 10:50 PM   #120
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I was looking for circuit details on the Tandberg, not a testimonial... I'll search around myself.
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