How to Repair Stereo Amp - The Sansui Amp, D1212 Diode Tip and bad glue tip 

I have 4 with a pink dot, and one slightly larger with a green dot , are they all all the same ? what do I replace them with

Great is there any tips for me to know about my old Sansui 5050 receiver it needs to be recapped and tested it works but it stops working when you get to a certain loudness? I have to shut it off and turn it back on as a reset.

My Samsung receiver shuts off by itself after 20 minutes even though it’s only plugged into the wall. Which capacitor would it most likely be, please?

@tvecourse Do you know where I can find a good repair shop for a Technics SU-G91 that's in the Dallas area? Trying to find a place closer to me so shipping isn't an arm and a leg. The overload light is on and it won't work as soon as you turn it on. I've looked it up on the internet and got three different recommendations (replace the fan, re-solder all the points, and the other was something about like replacing something that looked like the tube thing in this video or something). Thanks! :)

Hi, I've got a faulty f.2624, I can't find the modern equivalent of TR9 & TR10(2sc984) can someone help me? Also the power transistor (2sc1116 & 2a747) are very difficult to replace... Thank you so much!

Good work, where are you located?

Tell the guy in the background to stop snorking.