Accuphase E-202 Integrated Amplifier Restoration & Service Tips

[@davidbailey6350]

If you get the Time Tony, a part two with dampening info would be excellent to watch… I must say I’m dumb as a stick when it comes to electronics but I do greatly enjoy watching your videos and I do learn something each and every time.

[@FireandFrostHVAC]

The devil is in the details, you’re correct in pointing out how well made that amplifier was put together. Glad to see it was on your bench and got the respect it deserves. I vote for part two schematic / dampening video. Great video, thanks Tony!

[@pulsar7058]

Extremely instructive and clear. Not a pro here, but God do I benefit from your expertise as an amateur tinkerer! Thank you very much ❤

[@mackfisher4487]

Tony, I vote for part-II if you have the time. I subscribe to your channel because I learn something every episode, and schematics are the chief way I learn.

[@HipocratesAG]

I vote for Part 2 with schematic time ;)

[@therealdjryan]

Thanks Tony. Informative as always. A video on damping would be useful to me

[@Luckiestmanalive-bb1mi]

Me, too. I have a valve amplifier with a damping factor of 14 and I would like to know if I can change it or what, if any, difference it should make!

[@FreqBand]

I'm in the midst of restore/aligning a T-101. Didn't see any vids on this unit. All new caps, relay, shielded wire for audio, output jack upgrade. Accuphase was out of my price range in the 80's......but still holds value today !

[@patmeadows4759]

Another great and informative Vid. I own an Accuphase E202 and the matching T101 Tuner. Both have been fully restored in 2019 (partially restored 15 years ago with some leaky transistors and reflowing some of the boards). I am the original owner of the E202. They are classic pieces. Sound phenomenal today and for many years to come!

[@robfors]

Thank you for your time, dedication, and passion for this equipment! Excellent video, very well covered, and the explanations were spot on! Take care!

[@kenielsen]

I'd like another video on the damping factor option👌

[@christian-robinson]

Your videos are always informative and a pleasure to watch

[@ronge1000]

Thanks for the video! Would love a part 2!

[@mistermac56]

Excellent restoration. Accuphase is known for quality and pricey equipment, but as the old saying goes, you get what you pay for. They entered the market later than Marantz, Sony, Pioneer, etc., starting business in 1972.

[@haraldlonn898]

YES PLS do a deep dive.

[@mikepxg6406]

I have never seen one of these its great, almost a military style of build quality. Thank you Tony a great job.

[@haraldlonn898]

Now that we have warm white LED I see no problem. Thanks for great videos.

[@PossibleAudio]

This video was very helpful and entertaining! I learn something new every time I tune in. Thanks!

[@mr.salisbury2435]

It’s amazing how much things have changed on caps- I am restoring an old Telefunken 1960s which has axial caps with a plastic adapter so they can be installed like radial caps

[@AndrewLittleboy1]

As soon as I saw that missing volume knob I immediately thought of 'mend it mark'.😊

[@makgou9148]

Accuphase is top shelf inside and output. I love my t100 c200 & p300 trio, bought new in 76'

[@dell177]

i restored a T101 tuner a few years back and the build quality was superb as was the performance.

[@stevesmyth4982]

Notice the PCB mounted ceramic disc caps have little plastic stand offs for strain relief, remarkable build quality throughout, the layout is well designed for heat management and excellent quality components. Such a well designed amplifier will run reliably for a very long time, thanks for the video, Tony.

[@erikdenhouter]

I agree, a really peace of art. It comes from a time that they were SO close of perfecting reproduced sound, that they really didn't look at spendings any more to get there. Tony I asked it before: when having a variac, why do you never set the mains at the proper voltage before you set the bias for the main amp ? Almost all is unregulated, so there's a linear relation. I must say that I don't know if the bias comes from a regulated supply in this one, but most of the time it does not.

[@BrianxMoy]

What an impressive piece of gear that will surely outlast us all. Anybody currently trying to sell them will like this video

[@59seank]

I have an E-202 and the matching tuner. I purchased them off EBay about 7 years ago and had them shipped to the Accuphase depot in California to be tuned up. I was surprised that Accuphase still supported them. They sound great. I also bought an Accuphase P-300 amp and the matching preamp. Both need repair.

[@tomaszczyzyk6148]

Great video,thank you 🙂

[@pglick123]

I have my original T-101 and E-202. I recently replaced the power capacitors (1 was bad). I haven't gotten any further though. I have to clean the controls and replace meter lights, but it does work. I haven't finished watching the video yet, but I hope to learn what you do!

[@pglick123]

What type and where did you get the meter LEDs?

[@pglick123]

I am interested about the damping factor (adjustment?). I did not know about that.

[@jasonkilo8167]

A dampening video would be great.

[@gamerpaddy]

accuphase and revox are really nice to work on. all of them. 70..80s marantz, technics, pioneer etc. are the worst, cables going all over the place, have to take apart everything to get to certain sections. they had no idea what they are doing but all of them have one in common, they messed up soldering badly. i never had anything from that era without cracked solder joints.

[@ibrahimkocaalioglu]

yes damping factor 👍👍👍

[@scrappy7571]

double yes!

[@dennbash]

I vote for part 2

[@carlveilleux5744]

Part 2 please, and please include a small part on your pen turning on the lathe!!

[@IAWAF]

Looks great!

[@welderfixer]

That amp looks like it could have been built by HP back in the day. Can you imagine if HP actually had an audio line of products?

[@martinsmartins187]

Yess!!! I too vote for part 2.

[@alanrkanter]

At 9:27 you say or if it's a fluke... DUH it's TWO flukes ! Back in the 70s our store was a dealer for these (as well as a warranty servicer) and I agree these were very well built and sounded great. And, you did mention the 2 flukes just after I typed this.

[@dh-_1011]

Re: your meter. I feel the same way about my Fluke 27FM. That dude’s been with me a long time and I trust that guy.

[@nicodenhaak3961]

Same here. Bought my first 87III way back, just added a second one because it's handy for serviceing amps. These meters are the best. Reliable and really fast.

[@oldradiotvsc9836]

Excellent job! I would be interested in learning more about damping factor and how it affects sound, especially since I know I like and like working on tube amps.

[@thulinp]

The fluke stand is called a tilting bale. A guy in UK 3D prints them in ABS to sell.

[@NovaluxStereophonic]

Love the subtle Fluke humor… audiofile 😂

[@adamwatford5234]

Yes, more tech.

[@nancy4don]

Where did you get that extra-long "colonic" straw for your aerosol cans? Would love to get some myself.

[@nicodenhaak3961]

Is this set for your own collection Tony? If so congrats M8. Great score. Love to have a set for restoration, to add to my own growing collection.

[@Dr_G_HiFi]

Please Tony make a Damping factor video. Thanks!!!

[@joelima201]

The Japanese McIntosh. Yes, to part #2, please.

[@petertimp5416]

🙏👍 Tony!!!

[@cauf6182]

Hello Tony Do you perhaps have a link to the deoxit video ?

[@Davor-hifi]

I did try google it and search on youtube but nothing came up. So yeah some link would be great.

[@erikdenhouter]

I assume it is this: kzbin.info/www/bejne/jKG1o4NpqNaEgtk

[@jyrik6654]

I'm here for the damping factor. 😉

[@puciohenzap891]

Never use sand paper on relay contacts, unless it's like 3000 grit or higher. I prefer using a tiny bit of silver polish on a piece of cardboard.

[@yo3429]

Hurray for the audiofile! :)

[@afnDavid]

21:39 Fairly sure that those CEW (85L) capacitors are made by Panasonic (Matsushita) not Elna.

[@samt4202]

Not sure if you cleaned the damping control switch or not. I suspect you did but did not show it on video.

[@GregPeace22]

cool

[@VikasGupta-bx5qv]

yes on damping factor

[@nancy4don]

Hey - isn't part of the "tube sound" also at least partly due to the outputs going through transformers? You can tell I have no idea...

[@danhorton6182]

I know this video is six days old and you likely will not see this Tony, but those gray film capacitors they used throughout this are known to be very poor quality. They are used throughout the Marantz gear as well and they are known for failing pretty often. I restore a lot of Marantz gear, I’d say at least 20 pieces a year get full all out restorations. Whenever I see those gray flat film capacitors they are always removed and replaced with whatever you want, generally I’ll use Wima. Also, I hope you change out many of those transistors. I saw many of the C1451/1452 and A809/810 transistors that you left in and they an extremely well known as problematic. And yes, I would’ve 100% replaced those tantalums. Being as old as they are it, it’s very likely they will end in failure as they are growing tin whiskers internally.

[@williamland3772]

Bring on the dampening factor!!!

[@JerryPemberton]

Almost 11 minutes in when I noticed that you are using a shattered glass transition in the video. I hope it's not foreshadowing of bad things to come with this beautiful amp.

[@jansen2810]

I am very curious where you get the SM, they are very hard to come by, if not impossible.

[@davidwolverton4858]

SM?

[@user-mv5bu2kk8b]

Service manual ​@@davidwolverton4858

[@josephlalock8378]

33:00 hey tony. you also missed a grey axial cap in the middle of the board. :)

[@sirsuse]

Part 2 please

[@user-mv5bu2kk8b]

Sp true one board at a time power test ... etc

[@dzee9481]

Tony I remember when a lot of companies in the US sent off there electronics to Japan, US folks hated losing there jobs in the assembly of the boards here. But I have to say the Japan is more precise and conscious about what they build and assemble. In comparison to products made in China. Today things built in Japan is no longer cost effective like China. Now with the new US government in 2025 and beyond will cost US consumers at least 25% higher in the current products being bought, since most of these products are NOT made in the US. Sad. I would have to say your price for repair on these beautiful equipment will cost more.

[@nicodenhaak3961]

Tantalum capacitors ALWAYS go bad at this age now, i'm sorry. False assumption. You might want to revisit that eq board Tony. I didn't have one single tantalum cap that was remotely in spec in every repair where i encountered them in the last 5 years. Leaky and lost capacitance... Cheers from the Netherlands.

[@Dutch-linux]

the best color for analog level meters is blue for the lights that just looks awesome

[@marcvdfv8431]

almost all of those metal can transistors are prone to leakage...

[@danhorton6182]

I am very shocked he left those. You could read right on the side of one “C1451” which is well documented to be troublesome

[@adrianfisher9641]

Can you remake this and sort out the focus. It’s a great video but you need to get a better camera or fix the focus.

[@nabman_]

@xraytonyb Tony, you literally asked for like and subscribe at the 'foot note''. LOL Another great video. Love your work.

[@99osla]

does damping factor make any audible difference ?

[@danhorton6182]

In the bass response it does. Higher the number the better the transient response. Basically tighter more accurate and better overall bass

[@jdmccorful]

Enjoyed, the work is excellent! Thanks for the tutorial.