Hello everyone,
I am looking for a new set of KT88 tubes for my MC2000. I still have the original McIntosh tubes from 1999 which I would now like to replace. Which manufacturers of KT88 do you prefer in your McIntosh's? I still think the preamp tubes are fine. Which is why I only want to replace the KT88s.
Then I have a second MC2000. However, this one is defective. I bought it second-hand as defective. I would like to repair it. According to the previous owner, he had pulled one or two KT88s during operation !!! and caused the defect in the other half shaft. After my initial investigations of the defective MC2000, I have come to the conclusion that the Darlington emitter follower will have been damaged. My plan is to disassemble the MC2000, remove the circuit boards and replace the semiconductors Q3/Q4 and Q5/Q6 on both output stages. Part number: 132136 TRANSISTOR NPN T092. I will ask McIntosh for this part number. Alternatively I have NPN 600mW / 400V types in stock.
Has anyone ever had such a defect on their MC2000? If so, what seems to have caused it?
Best regards
Dunley
I am looking for a new set of KT88 tubes for my MC2000. I still have the original McIntosh tubes from 1999 which I would now like to replace. Which manufacturers of KT88 do you prefer in your McIntosh's? I still think the preamp tubes are fine. Which is why I only want to replace the KT88s.
Then I have a second MC2000. However, this one is defective. I bought it second-hand as defective. I would like to repair it. According to the previous owner, he had pulled one or two KT88s during operation !!! and caused the defect in the other half shaft. After my initial investigations of the defective MC2000, I have come to the conclusion that the Darlington emitter follower will have been damaged. My plan is to disassemble the MC2000, remove the circuit boards and replace the semiconductors Q3/Q4 and Q5/Q6 on both output stages. Part number: 132136 TRANSISTOR NPN T092. I will ask McIntosh for this part number. Alternatively I have NPN 600mW / 400V types in stock.
Has anyone ever had such a defect on their MC2000? If so, what seems to have caused it?
Best regards
Dunley
