I still have 1 pcb

thanks Baron the amp is still very good with Wima

After a few trial and error on Jupiter caps and Mundorf I gave up and fix the Wima back on the amp To my surprise the hum was gone. So now I am a happy APPJ owner again

This morning the tube amp repair guy call me up and asked to repair the amp myself.. I am a bit puzzled by his request thus i went over his place and he showed me one of the jupiter caps was picking up the buzz from the transformer. He asked me to repair it myself Lol So this is how the amp...

I connect a jumper cable highlighted in red because i yanked out the lead in the earlier mod but I didnt have any humming back then i will try to move one of the jupiter capacitor away from the yellow transformer and will see if the humming continues

Thanks baron Despite the hum, the amplifier works fine I can almost accept it as it does not interfere with the music I get fuller body music with this setup than what i get with the previous capacitors (wimas and panasonic) I will continue to troubleshoot it this weekend and if I'm not able to...

My turn to mod my second APPJ Fingers crossed Clean up the board And managed to fill it up But there is a continous hum coming from the left channel It doesn't change when i move the volume pot

I have ordered a new appj amp I currently have 3 tube amps and 2 hybrid But i find myself keep using APPJ and Musical Paradise MP301 Occasional use is the DV3322 and the rest is collecting dust

They sound very good with this square getter baby

This amplifier is the one i enjoyed most The 12ax7 just sound so complete in many ways as compared to other tubes I am in a dilemma now as the cost to repair vs getting a new set from aliexpress is very very close

My appj spoilt and i was about to get my second set of appj amp Nice amp

I shared the same experience with GSP They will confiscate it

Found the culprit Its the headphone jack Wiggling it will get the missing channel back

I think I have to re do the solder job my self and see if i can get it fix Labor repair service in Singapore is not cheap Thanks for your reply Baron! I appreciate it

its a mess down there