Thanks for all your superb videos and the time you take to explain issues, procedures etc. I've learned a lot and currently fixing an amp for a friend after learning the general how to from you 😊 Regards Brendan

I enjoy seeing these old Rotel's getting the love they deserve to continue on with life. Very thorough t'shooting and problem solving. You and family have a Merry Christmas!

I like your minimal Xmas decorations !

The oil on the old clear PVC tubing is the plasticizer leaching out. This is the same substance that "melts" hard plastics when soft PVC cables are left sitting on them for too long.

I had the exact same issue with adjusting the bias on mine. So funny to see you going through the same issue! I left mine at 20mV.

Merry Christmas stay warm, great work.

Awesome channel

I restored my 802 about 5 years ago. It sits in storage now because I have other units that I use. Mine is the silver-faced unit.

Excellent restoration, nice to see the whole process come together. Happy New Year!

I love your videos Trevor go ahead

Using 100V caps instead of 35V is no issue....as long as same capacitance value and that they fit. That being said these replacement caps were sloppily installed, probably what the pevious tech had in stock. And the main filter caps, I would remove the old and replace with a similar diameter form-factor cap. Nice vintage Rotel.

Bias current is for the A part of class AB amplifier, working in class A at low level, thus avoidind crossover distortion. You can test if your bias current is not too low by measuring distortion at low level.

I bought the RX-402 back in 1978, cost me £128 here in the UK.

I always aim for 20 ma of current thru a single emitter resistor when unknown . Seems to be the sweet spot most of the time

Happy Holidays to you Trevor. Yes, the width is eye catching along with the color contrast of the Face plate, hard to believe 1975 (except green lighting) looks more 1980. Service Caps look good. Enjoyed the BIAS fiasco.

Great video Trevor. Merry Christmas to you and your family.!

used to have one of these, but had to get rid off it during a move, such a shame

Excellent work as always. A very Merry Christmas to you and your family!

Merry Christmas!

One thing I really do hate is soldered-in fuses!

BTW, you don't have to match the voltage rating for electrolytic capacitors - use the same or higher rating. So the 100v rating was okay. :o)

I thought the QI was a miss print with probably 13/15 mA being right. A quick look for any crossover would confirm if the QI was correct or not.

I would also assume it would be a typo for 30mA bias for each channel. Perhaps the spec is poorly written to mean 30mA for both combined. Nice job however Trevor. Always excited for your videos!

Merry Christmas Trevor. 🎅

There is usually a multiplex level adjustment for the stereo decoder to kick in only when the 19khz level in the carrier is high enough. Might need tweaking to make the stereo light behave.

Feliz Natal 🇧🇷🇧🇷🇧🇷👍👍👍👍

I saw that those 2 carbon comp resistors on each side of the power amp board were still there. Did you check them as you had mentioned? Enjoyed the work on this Rotel!

I have a Rotel RX602 which is similar to your RX802. The power button playing up. Can switch on but difficulty switching off. Need to give a hard push with the finger. Would appreciate your expertise.

What was the fascination in US with receivers ?

Maybe it's 30mA over BOTH emitter resistors?

do you have any hitachi amps or receivers to repair ? not many about.

Are those power supply caps 85 deg celsious or F?

I have read on some commments that people say that you can go higher on the voltage on the caps but don't go higher on the mfds to stay with the recommended? so now i am confused? What happens when you go higher on the voltage? Thank you

Nice video. I'm working on the same receiver that kept on blowing the power transistors on one channel because the temperature skyrockeded. Found out that the stabistor on one channel was fried, but on the other channel the bias voltage could be adjusted to be bang on 30mV. It turns out the stabistors are impossible to find, so one solution is to put two tN4148 diodes in series which ain't the best solution. Someone are talking about making a resistor circuit instead but there is no description to be found. Other say a green led diode painted with nail polish to make it voltage stable might work. Does anybody know what is the best solution to replace the stabistors?

Well if you get tired of Canada your welcome in Tennessee USA

MC... HNY... :-)

OZZY ! REPORTED FOR PLAYING COPYRIGHTED MUSIC

VIDEO IS TO LONG REPORTED

Wow very nice video as I always watch your all video I must say that you are master of the master professional electronics engineer 🎉🎉 you must be rocket science 😊 and you are the best on KZfaq no one can beat you 😊the best master professional guru and merry christmas and happy new year to you and your family ps if need help I will it you know and please kindly don't forget me 😊I am from London England thank you