Learner
Well-known member
Hi guys,
Here is the schematic of my 6sk7 tube circuit, I am trying to nail the biasing value. So far the circuit works but just a bit noisy, I noticed that the noise is low on the CRO before I plug the output into the power amp.
Additional circuit info
- I have grounded the input and output cable together.
- the op amp to grid coupling cap has been poped twice when I used a 25V electro while tweaking the cathode resistor.
-the op amp driving the grid gets burning hot after I connect and disconnect the output to the power amp, and it dies after that.
Thoughts???
Here is the schematic of my 6sk7 tube circuit, I am trying to nail the biasing value. So far the circuit works but just a bit noisy, I noticed that the noise is low on the CRO before I plug the output into the power amp.
Additional circuit info
- I have grounded the input and output cable together.
- the op amp to grid coupling cap has been poped twice when I used a 25V electro while tweaking the cathode resistor.
-the op amp driving the grid gets burning hot after I connect and disconnect the output to the power amp, and it dies after that.
Thoughts???