I have changer the 6K7 tube on a RCA BA86A1.
Checked and paired with a tube meter.
I tried with different tubes from different company.
Some produce a big hum!
When you test them, you have generally the best result with the tube tester!!!
Any one knows how to cancel this.
I just can say that when you use a RCA, it is allways good...
Best,
Olivier :shock:
Checked and paired with a tube meter.
I tried with different tubes from different company.
Some produce a big hum!
When you test them, you have generally the best result with the tube tester!!!
Any one knows how to cancel this.
I just can say that when you use a RCA, it is allways good...
Best,
Olivier :shock: