Enjoy your show. Love these amps. Still got my SX880 i bought new in 1979
@mfr588 ай бұрын
Colds are just your body detoxing. Glad you have a sensible attitude about it.....Best. M
@thomaskendall4528 ай бұрын
Tony, the old saying is, "if you treat a cold, it'll last a week; if you let it run its course, it'll last seven days." Happy New Year!
@jaybats78658 ай бұрын
Hey Tony….so glad to see your post for the next video of this series I just love your vids…thanks for the fun😃😃😃😃
@Tomcat7218 ай бұрын
😎 Cool Thanks for doing this (1280) again! I'm actually listening to this through my 1280 😊. I have the one with the International voltage selection in the back panel. Some do not have this.
@FOXBODYCENTRAL8 ай бұрын
You doing one!!!! Right on man . I had man done . I couldn’t find the time to complete myself
@scrappy75718 ай бұрын
Tony, Have a fantastic New Year!
@martyh93098 ай бұрын
Tony, love the videos. You do what works best for you, but I do appreciate the longer videos myself. 😁
@patmeadows47598 ай бұрын
Happy New Year Tony. Your videos of the past year are much appreciated and excellent (as usual). I use makeup removal pads for cleaning damped with 99% alcohol. Cheap and excellent
@philipslighting82408 ай бұрын
Thank you Tony. Good luck for the New Year. Mike.
@airmann908 ай бұрын
Excited for more. Happy new year!
@FireandFrostHVAC8 ай бұрын
Happy New Year Tony! 🎉
@g.fortin32288 ай бұрын
Love it Tony.. this is going to be a great series. Especially love the knowledge of sub's and modding to improve or get around the unobtanium situations ! Happy and healthy New Year to you. I do like the multi-series of shorter vids.
@tonygustafsson85508 ай бұрын
happy new year, wishing you and yours an awsome 2024 🔉
@PrimeHiFi8 ай бұрын
Looking forward to the next video, Tony!
@CrispyCircuits8 ай бұрын
Well, I am feeling bad today. It's not a cold. Stomach a little upset and I feel a bit dizzy. Sucks I have to go get a regular prescription, too. Clearly Pioneer was thinking ahead. You can see the outline of a microSD card where the Pioneer name is on the boards. Hahaha. I'll go check out more of your transistor videos. I've never seen those types before. Happy New Year.
@gabrielhamburger88238 ай бұрын
Happy New Year Toni and God be whit you . NEVER GIVE UP Toni of your DREAMS !!!
@alexw8908 ай бұрын
Be well Tony!! Happy New Year!
@marcdrouillard40558 ай бұрын
Hi Tony. I am sure that the paint type coating on the heat sink assemblies interferes with metal to air heat transfer! I would expect that stripping the coating off them and maybe black anodizing them would improve thermal management.
@jim99308 ай бұрын
Emissivity is only a very small percent of heat sink effectiveness. Area is 50x more important. Coatings are for corrosion resistance and appearance. The difference between black anodized, black enamel, black lacquer, or plain aluminum is not worth the time to measure - smallest tiny draft or orientation (convection) require laboratory test conditions - a bumblebee would mess it up.
@kenielsen8 ай бұрын
Pioneer must have had a deep partsbin since each borad doesn't match exactly... I've done several early 90's Acurus poweramplifiers, and in almost every amplifier one will find different part-brands (same values though) used for one channel then the other. I never found difference between the channels when measuring should be mentioned, but always wondered if they went short on supply and ordered widley to keep stock on parts😅 //Good video👌
@NicoJeanRas8 ай бұрын
One of the most interesting videos I have seen about the transistors. One would think there are standard practices out there. Pioneer claims ISO9000?????
@ronenshaul12178 ай бұрын
Hi Tony, I own a Pioneer SA-9800, I think that you own it too. Its power transistors, the 2SC2526 (npn) and the 2SA1076 (pnp) are RET.
@dzee94818 ай бұрын
Tony I know one thing about the difference between products made in JAPAN and others made in China. I remember in the old days that goes back in the 70's, Americans had this thought that products from Japan was garbage similar to what we think of today with products from China. It sad that Japan does not manufacture the electronics you are working on today. I know that the design was a product of American ingenuity. Today we do have that anymore. Anything you buy today is made to be thrown out.
@TurntableGuy8 ай бұрын
How are you finding the Wurth electrolytic capacitors? I've been using them for a few years now (at quite a savings $$$) with good results.
@xraytonyb8 ай бұрын
So far, I've had very good results with them. Thumbs up!
@RickMahoney20138 ай бұрын
Tony can you point out just the amplifier section of a receiver ? Thanks.
@ohmbug108 ай бұрын
That's what he's working on in this video. The big transistors on the black heat sinks are the finals. The circuit boards have the multiple stages. Basically, they have a differential pair and then multiple sections of current amps, one driving the next. Each big black heatsink and the circuit board is the power amp for one channel.
@dhpbear28 ай бұрын
25:36 -This may be a dumb question: Is the paint sandblasted off before the powder-coat is applied?
@t1d1008 ай бұрын
I think that it is chemically stripped off in a dip tank... Think caustic chemicals, high heat and complete removal.
@jaghifi8 ай бұрын
My 1280 also has different color caps from factory
@t1d1008 ай бұрын
👍
@NiHaoMike648 ай бұрын
Would it help to cook the heatsinks on a hot plate before disassembly so that the thermal grease would be thinner?
@ronbradshaw74048 ай бұрын
Happy New Year Tony!!! :) . The red caps you are using are Wurth's right?. Do you know that these guys make just about everything fron dish soap to parfumes?. I'm not sure i'd thrust em for caps...
@schorse10008 ай бұрын
That must be a different company at all. Würth products are super high quality and most of them are only available for business customers.
@nabman_8 ай бұрын
@xraytonyb Hi. What would you recommend for high thermal conductivity paint for diy heatsink painting? Thanks and best wishes foe 2024.
@davids46108 ай бұрын
Happy New Year Tony.... From your accent (PA), I would guess you know the lebanon bologna cure for your cold.
@xraytonyb8 ай бұрын
I'm not aware of that one, but I much prefer Lebanon Bologna to plain old Jumbo ;))
@TheTrueVoiceOfReason8 ай бұрын
But which flavor Lebanon? And why is the double smoked only in sweet??
@davids46108 ай бұрын
@@TheTrueVoiceOfReason One of the great mysteries! I always go for regular but I've heard the sweet is good for flu.
@TheTrueVoiceOfReason8 ай бұрын
@@davids4610 I guess I'm SOL. I prefer regular over the sweet. LOL
@NicoJeanRas8 ай бұрын
With powder coat, you won't need the mica washers.
@kevkabluebird10328 ай бұрын
Are broken mica pads a huge problem? I've seen some old amps with broken pads (not fully delaminated nor fully broken in pieces) and they seem to work just fine? I guess the temps could be a problem if the amp is driven 100%? Best wishes from germany!
@xraytonyb8 ай бұрын
I usually replace any mica pads that have cracks in them. While they will most likely still work (as long as they aren't cracked all the way through), I don't want to risk them cracking further and allowing the transistor case to short to the heat sink.