OK. The black stuff around it looked like coax insulation.audiorado said:Hi,is no coax wire,its only a piece of silver wire , that goes from tourret tag to pin 2!
Anyway, huge input caps (just visible at top of picture?) mean large stray capacitance so room for unwanted feedback.
...hi,Mona.....
...the tube that I use is one piece E80CC per chanel.I say already I have 3 pairs from this tubes from Valvo,Philips and tungsram,and with all this tubes the problem is tha same,I try the ecc82 to,becouse many people use in the way of ecc82 than E80Cc and it work perfectly,but in my preamp when I use ecc82 pait of tubes the problem is the same.I have now put the 1kohm of grid resostors in the input socket pin(pin2) and the problem is the same.
Have maaybe someone out there some good schematic for line preamp with E80CC tubes???
...the tube that I use is one piece E80CC per chanel.I say already I have 3 pairs from this tubes from Valvo,Philips and tungsram,and with all this tubes the problem is tha same,I try the ecc82 to,becouse many people use in the way of ecc82 than E80Cc and it work perfectly,but in my preamp when I use ecc82 pait of tubes the problem is the same.I have now put the 1kohm of grid resostors in the input socket pin(pin2) and the problem is the same.
Have maaybe someone out there some good schematic for line preamp with E80CC tubes???
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