Hello Mark! Silver plating the power switch contacts, after perfectly recreating dome shaped surfaces on both contacts... I have not seen anyone on UA-cam ever go through that much fine, precision work to restore a vintage power switch! You are clearly in a league of your own. Beautiful attention paid to every detail, to the point that you even consider the next repair person, when reattaching component leads speaks volumes to your ethic as well. I love your work. I am so happy that I found your channel. Please keep it up as this is really great stuff! Thank you for showing all of us how it should be done proper! Fred
Mark, that re silvering of the contacts was a brilliant move! That is what I like about your channel. Inventive! Love it! Keep up the good work and your channel will grow, you are up there with the best!
You should add decoupling capacitors on the 78xx voltage regulator on both the input and output as close to the regulator as possible. They have a tendency to oscillate at a few hundred kilohertz without any decoupling.
I love the engineering that went into making these old units. (I say 'old' reluctantly because I remember when these were the latest thing!) Made to last, and made to be repaired - something so sadly lacking in so much of today's tech. Just love the extra mile Mark always goes when restoring or repairing them. One of the very best techs on UA-cam for this kind of stuff.
Fair play Mark, nice to keep the original switch going. Artisan electro-mechanical repair! I was going to do the same for my Arcam A60 power switch, then luckily found the exact same switch is still manufactured in the Uk, 45 years later!!
I worked in a dept. store and sold a TON of these receivers...and the bigger siblings as well. They were quite good for the money and super attractive designs.
THAT’s my old man’s receiver!! I really love that heavy block of a tuner dial on that beast. And I’m happy to see a view from under the hood. Mine never had that color glow to it so yeah that LED mod is different. Oh my!? The days when knobs and dials had strings wrapped around cogs and strung all in and around the inside. Thanks for a very long life expectancy of these old Pioneers and Yamahas, nobody will ever need another newer model!! Those good ‘ol days, when they used those offset encoders and string wound around little pulley wheels, and those stacks of plated tuning capacitors with ceramic insulation. Single Damned tuning cap is the source of half of the cost and half of its weight…
Never seen anyone doing all that work to the contacts points, silver plating and all that. Fantastic work! And another good news is you got yourself a new subscriber! Hurray!
This is probably their best analog receiver lineup overall due to appearance, performance, and ease of service. All have discrete outputs save for the oddball SX-650 which uses SanKen SP-40W modules.
The ions in the silversolution can only travel to the target and deposit there, when the cotton swap (in the stainless steel holder) TOUCHES the target. As soon as you take thw swab off, the deposition proces stops. Just fyi
Hello Mark! Silver plating the power switch contacts, after perfectly recreating dome shaped surfaces on both contacts... I have not seen anyone on UA-cam ever go through that much fine, precision work to restore a vintage power switch! You are clearly in a league of your own. Beautiful attention paid to every detail, to the point that you even consider the next repair person, when reattaching component leads speaks volumes to your ethic as well. I love your work. I am so happy that I found your channel. Please keep it up as this is really great stuff! Thank you for showing all of us how it should be done proper! Fred
A Japanese screwdriver? Googles
This is the best hifi repair restore technician in the world, breathtaking work .
The joy of finding a Mark video that I forgot to watch. The guy is a genius and therapy!! Thank you Mark!!!!
These are some of the best repair videos on UA-cam. The silver plating was above and beyond what anyone would do. Subscribed!
"It smells strong, and it's deadly... oh, ICE CREAMS!"
Mark, that re silvering of the contacts was a brilliant move! That is what I like about your channel. Inventive! Love it! Keep up the good work and your channel will grow, you are up there with the best!
Techmoan sent me here.
You should add decoupling capacitors on the 78xx voltage regulator on both the input and output as close to the regulator as possible. They have a tendency to oscillate at a few hundred kilohertz without any decoupling.
What a patient and resourceful person !
I love the engineering that went into making these old units. (I say 'old' reluctantly because I remember when these were the latest thing!) Made to last, and made to be repaired - something so sadly lacking in so much of today's tech. Just love the extra mile Mark always goes when restoring or repairing them. One of the very best techs on UA-cam for this kind of stuff.
Fair play Mark, nice to keep the original switch going. Artisan electro-mechanical repair! I was going to do the same for my Arcam A60 power switch, then luckily found the exact same switch is still manufactured in the Uk, 45 years later!!
I worked in a dept. store and sold a TON of these receivers...and the bigger siblings as well. They were quite good for the money and super attractive designs.
THAT’s my old man’s receiver!! I really love that heavy block of a tuner dial on that beast. And I’m happy to see a view from under the hood. Mine never had that color glow to it so yeah that LED mod is different. Oh my!? The days when knobs and dials had strings wrapped around cogs and strung all in and around the inside. Thanks for a very long life expectancy of these old Pioneers and Yamahas, nobody will ever need another newer model!! Those good ‘ol days, when they used those offset encoders and string wound around little pulley wheels, and those stacks of plated tuning capacitors with ceramic insulation. Single Damned tuning cap is the source of half of the cost and half of its weight…
Never seen anyone doing all that work to the contacts points, silver plating and all that. Fantastic work! And another good news is you got yourself a new subscriber! Hurray!
And I always thought I went the extra mile, but silver plating the power switch contacts is almost unbelievable. Wow
This is probably their best analog receiver lineup overall due to appearance, performance, and ease of service. All have discrete outputs save for the oddball SX-650 which uses SanKen SP-40W modules.
The ions in the silversolution can only travel to the target and deposit there, when the cotton swap (in the stainless steel holder) TOUCHES the target. As soon as you take thw swab off, the deposition proces stops. Just fyi
Hearing the birds in the background was nice. That seems like such a peaceful workshop, coming from an automotive technician.