Hi Guys,
After some advice please? Hope this is ok to post here but please move if this is in the wrong place. I've recently built the 8600SVK but have an intermittent issue with the right channel.
Powered up and there was a crackle/pop on the right channel and then silence.🙁 Followed the troubleshooting guide, swapped the 300b and the right channel started working again so assumed it was a faulty tube.🙂
Readings below: TP3 & TP4 seem to be whack so i'm not sure if this help's diagnose where the issue may be.
Any comments/thoughts gratefully received.
TP1 0.8 0.84
TP2 0.8 0.82
TP3 110 98
TP4 110 103
TP5 0 0
TP6 0 0
TP7 8.7 8.7
TP8 8.7 8.7
TP9 175 167
TP10 175 168
TP11 235 223
TP12 235 226
TP13 330 335
TP14 330 339
TP15 -70 -72
TP16 -70 -72
TP17 -70 -72
TP18 -70 -72
TP19 360 364
TP20 360 366
TP21 5 5
TP22 5 5
TP23 365 370
TP24 365 371
TP25 2.7 2.7
TP26 2.7 2.7
TP27 16-22 15.4
TP28 16-22 15
TP29 385 390
TP30 385 390
TP31 -98 -98
TP32 160 159
TP33 12.6 12.6
TP34 60 59.5
TP35 6.5 6
TP36 6.5 6
TP37 12.6 12.2
TP38 300 296
After some advice please? Hope this is ok to post here but please move if this is in the wrong place. I've recently built the 8600SVK but have an intermittent issue with the right channel.
Powered up and there was a crackle/pop on the right channel and then silence.🙁 Followed the troubleshooting guide, swapped the 300b and the right channel started working again so assumed it was a faulty tube.🙂
- Received a replacement 300b, installed, and worked a dream listening to music all day.🙂
- Following morning powered up and a crackle/pop and the right channel is out again.🙁
- Took voltage reading's to diagnose where the issue may be and tested again with music on the off chance and both channels working again!🙂
- Following morning tried again and the same crackle/pop on the right and it's out of action again.🙁
Readings below: TP3 & TP4 seem to be whack so i'm not sure if this help's diagnose where the issue may be.
Any comments/thoughts gratefully received.
TP1 0.8 0.84
TP2 0.8 0.82
TP3 110 98
TP4 110 103
TP5 0 0
TP6 0 0
TP7 8.7 8.7
TP8 8.7 8.7
TP9 175 167
TP10 175 168
TP11 235 223
TP12 235 226
TP13 330 335
TP14 330 339
TP15 -70 -72
TP16 -70 -72
TP17 -70 -72
TP18 -70 -72
TP19 360 364
TP20 360 366
TP21 5 5
TP22 5 5
TP23 365 370
TP24 365 371
TP25 2.7 2.7
TP26 2.7 2.7
TP27 16-22 15.4
TP28 16-22 15
TP29 385 390
TP30 385 390
TP31 -98 -98
TP32 160 159
TP33 12.6 12.6
TP34 60 59.5
TP35 6.5 6
TP36 6.5 6
TP37 12.6 12.2
TP38 300 296
Finally got to the bottom of this - it was the 300b's. Not sure if I sent the working 300b back in error or I had 2 faulty 300b's but I have now received a replacement matched pair and everything works fine.