I narrowed the problem down to R5177, the wire wound .2ohm 5watt. Any recommendations for sourcing this? Mouser part number?

I did some new test with corrections from Ron, here are my new results. Can anyone help me pin point what the problem is? As you can see (A) is still a FAIL. A) C65 + terminal and Q17 collector = FAIL B) C65 + terminal and Q27 collector = PASS C) C65 + terminal and Q15 collector = PASS D) C65 + term...

Thanks Ron,

I will take a look at that when i get to work. I was wondering if I got the polarity correct when I put them in.

Ok, here is some background. I re-capped my SHP3 amp and replaced the driver and power transistors. I had put 2 of the power transistors in upside down (don't ask) and fried them. I replaced all 4 power transistors and now, the amp produces no sound. I ran the driver continuity tests in Tony's amp m...

Ok, so I ordered new power transistors and got them installed. No smoke, but now, no sound. Where should I start looking? The mech scans and picks up a record and seems to work normally. I can here the mute/trip relay click, and the driver transistors get warm.(well 3 are warm and 1(the left one in ...

hmmm.....I was thinking that as well. I guess they are cheap enough to order some more. Any idea on where to source the black insulators on the bottom side of the heat sink?

I put the transistors in the correct placement, however, the insulators behind the heatsink have started to deteriorate and fall apart. Just to test the amp, I hooked it up and got a small stream of smoke out of the right side instead of the left side. Similar to my initial problem. I am starting to...

Ok, then that is my problem. I will correct the issue and report. Hopefully I have not done too much damage already.

What is the factory recommended stuff, so I can do it the correct way?

Ok, we all have our opinions on the components, but back to the issue at hand. I think I have narrowed down the issue to the 4 transistor on the outer chassis. When I replaced them there were two that were originally installed flipped with the writing upside down. I installed the new ones the same w...

In troubleshooting my smoking amp problem, I am wondering if thermal paste is electrically conductive. I noticed that I got a little sloppy with it. The brand I am using is GC electronics - Z9 heat sink compound. It is composed of silicon and zinc oxide.

I have seen similar components fail on newer equipment. The constant heating / cooling cycle over a period of years can take it's toll for sure. The cost of the transistors in not much, so why not replace them with newer technology and manufacturing conditions? I suppose it was not really required, ...

Ordered Tony's amp book, as well as the black and grey book. I am going to replace the 30 ohm resistor. What wattage resistor should I buy?

Ron, I am planning on buying Tony's book, but did not have the cash at the time, It's next on the list. As to the wiring, I replaced all components according to polarity. The only question in my mind were the two large 3000uf caps on the outer chassis. I am pretty sure I got that right. The resistor...

Ok, So I decided to replace all the caps in my amp from my STD3 (its an SHP3 amp) I used the parts guide posted on Tony's Arcade site. I compared the values to the caps as I removed to make sure everything was cool. I replaced the caps, and met resistors as well as the driver transistors on the driv...