My dad just gave his that he bought in Okinawa while in the military. It was working great and until it started smoking. This is super helpful with restoring/repairing it.
@craigm.90709 ай бұрын
Thank you for your time on this unicorn! When I started my first full-time job in late 1978, my then supervisor had one of these and 2 pair of HPM-100's. Talk about a beast, these are like hen's teeth nowadays; especially in really nice condition. The slight surface & paint corrosion damage can easily be repaired; your customer will be more than pleased when this restoration is complete. Really looking forward to the next video of the amplifier section...enjoy your weekend!
@SDsailor79 ай бұрын
That is a Monster receiver! Huge thing. and it probably weighs a ton!
@ShazeemKhan9 ай бұрын
Beautiful unit. I never saw this one (receiver, not video lol)
@SDsailor79 ай бұрын
That toroidal transformer is massive.
@garygranato91649 ай бұрын
wooooowzers i love ROTEL they made some top class equipment, the best thing is most dont even know how good they are, so you can get them cheap. :)
@alexismethenitis9 ай бұрын
Excellent work, as always. Thanks.
@TurntableGuy9 ай бұрын
Beast of a unit. I have a RX-802 in storage.
@Poppinwheeeeellllllieeeeez9 ай бұрын
Loving the regular content lately. Makes me feel like I'm not the only one constantly working on turntables.
@essdee91437 ай бұрын
Hi Trevor, I've found a tiny ball of blue tack pushed into the switch hole before mounting on to the switch shaft to be a great option.. The blue tack finds it's own places to grip inside the switch knob and it's not permanent..
@tenminutetokyo26439 ай бұрын
What a beast! Jam in modern LEDs.
@SDsailor79 ай бұрын
Excellent work like always!
@TrevorsBench9 ай бұрын
Thanks
@theaustralianconundrum9 ай бұрын
Yes. Very impressive expertise. @@TrevorsBench
@Poppinwheeeeellllllieeeeez9 ай бұрын
Thanks for the 1000hz warning. My wife is not a fan and lets me know it. Xray tony keeps a lager trigger operated iron for large heat sinks when desoldering. Brave move with the torch around the tuner cord. I use an eye dropper on the grounds on the tuner to avoid spraying the fins.
@R.AudioElectronics9 ай бұрын
Definitely need a higher wattage iron
@johnboyle14259 ай бұрын
A Wen or Weller soldering gun would make quick work of the solder points on the tuning capacitor box. Most of my work is with the older tube rigs and I've used both of these guns for many years. However, a Weller iron is used with printed circuit boards.
@myradiovideos9 ай бұрын
SO RIGHT!!! When he got out his TORCH for unsoldering I nearly fell off my chair.... It will do the job, but it definitely needs to be in the hands of a Skilled Knowledgeable Technician, and he is definitely that person!!!
@retro_tech8 ай бұрын
I only recently discovered your channel and I'm catching up a bit on some of your videos. Really enjoying them and loving your work so far! In this video and some others I've seen, I heard you mention a list of bad transistors which you always swap. Could you share that list and how you compiled it? Excellent job on this receiver, by the way!
@TrevorsBench8 ай бұрын
The list I keep talking about came from the AudioKarma forum. Search there for "top ten worst transistors" or something like that. Credit goes to Dlucy and other contributors of the forum, not myself
@retro_tech8 ай бұрын
@@TrevorsBench Thanks! I'll have a look.
@stefanegger9 ай бұрын
did not see the video but good video again!!! REAL REPAIR VIDEO, hands on not this theory math crap. AWESOME BEST CHANNEL EVER and you are so nice and staight forward, really refreshing. Not as good as harman/kardon but still a nice unit. PS: You should not touch the big capacitors like that, they may can zap you. They look dangerously huge.
@Poppinwheeeeellllllieeeeez9 ай бұрын
Hilarious
@chaber64199 ай бұрын
I'm surprised there's not at least 2 old Weller soldering guns in your collection. Torch does make for a more dramatic video though.
@TrevorsBench9 ай бұрын
I have weller gun soldering irons, the torch is fastest
@chaber64199 ай бұрын
And takes skill to avoid disaster. Then you mentioned plasma cutter...In addition to the spot welder, I'm really curious what else you're getting into. Cool stuff as always. Thanks for the vid. @@TrevorsBench
@TrevorsBench9 ай бұрын
@@chaber6419 One of my other hobbies is vintage car restoration so I have a lot of tools for autobody and mechanics
@chaber64199 ай бұрын
Got it. I transitioned to vintage audio after selling off my 60s cars. Looking forward to channel #2; Trevor's Garage.@@TrevorsBench
@Poppinwheeeeellllllieeeeez9 ай бұрын
@@TrevorsBenchcool. I rebuild 70s motorcycles.
@michaelaue74119 ай бұрын
I have this model and the same thing was happening with it and it came down to being the push buttons and the RCA inputs and I used needle nose pliers and pinched the ground sleeve and it is working grate
@steveoszman87469 ай бұрын
Thanks!
@TrevorsBench9 ай бұрын
Thank you, much appreciated
@geirendre9 ай бұрын
Could that stuff that leaked from the Elna caps be some kind of sealant that has leaked out during production? Like when they were soldered to the PCB? Didn't look like it did any damage to the PCB...
@TrevorsBench9 ай бұрын
I'm pretty sure it was electrolyte. About half the caps had no residue
@jubemarsh22029 ай бұрын
Are you going to replace the blue Tantalum caps?
@TrevorsBench9 ай бұрын
No, they will be left as they are working fine
@martyh93099 ай бұрын
On the phono bored where you had the dual tantalum 0.47 microfarad capacitors in series, that would be . 235 microfarad. You stated that you put a 2.2 microfarad film capacitor in as a replacement. Just wondering if you meant .22 microfarad film capacitor? I was also wondering about that large yellow .047 microfarad film cap near the rear of the chassis?
@paulb46619 ай бұрын
Those were 4.7uF obviously.
@garygranato91649 ай бұрын
@@paulb4661 when you place caps in series the value is divided, so 0.47 divided by the 2 caps.
@paulb46619 ай бұрын
@@garygranato9164 Trevor replaced two 4.7uF polar tantalums that were connected in series with a single 2.2uF film, most likely polyester Wima MKT, close enough for interstage coupling.
@TrevorsBench9 ай бұрын
Maybe I misspoke but they were def 4.7uF caps back to back. These caps were at the phono stage output, just before the input selection switch
@martyh93099 ай бұрын
I understand parallel and series cap math. I went back and reviewed the video and I had definitely misheard what you said Trevor about the value. All is well in River City. 😁 Ears are not what they once were. Sorry for the churn. I am still curious about what that large .047 microfarad cap was for in the rear of the chassis. Thanks for the videos, especially on these mid to late '70 beasts!
@SDsailor79 ай бұрын
Hifiengine says it weighs 33kg
@johnsenchak14289 ай бұрын
reported for abuse !!!!!!!!!!!!!!!!!!11
@Poppinwheeeeellllllieeeeez9 ай бұрын
Eat a bowl of cocks John. 🥣 🍆
@bigmsound9 ай бұрын
@@Poppinwheeeeellllllieeeeez Maybe that's what John is missing and I don't mean in his mouth, but up his other end. John needs to eat a bowl of "poop". Maybe that's why he is so miserable besides his other mental issues.
@paulb46619 ай бұрын
Just out of curiosity; who are you reporting these to? A therapist?