A good 6sn7 with transconductance and plate current within 10% or less triode-triode ,and at least 30% higher than the minimum,not microphonic and low noise is a good candidate bu do not compare brand of 6sn7 tubes if their Gm & Ip are not within 5% of their tested reading Gm & Ip brand-brand since brand with higher test reading will always be on top..
6SN7 tube question
Hello,
I need to replace the tubes in my Rogue 99 line preamp, which uses the 6SN7 tube. I was looking at an online seller who offers the following options with an affordably priced 6SN7 for a few dollars extra:
1. Balanced Triodes
2. High Gain
3. Low Noise and Microphonics
4. Matching
Options 3 and 4 seem most desirable for a preamp. My question is whether it is worth the extra few dollars (approx. $6 per tube) or is it just a pure marketing ploy to get suckers like me to drop more dough?
I need to replace the tubes in my Rogue 99 line preamp, which uses the 6SN7 tube. I was looking at an online seller who offers the following options with an affordably priced 6SN7 for a few dollars extra:
1. Balanced Triodes
2. High Gain
3. Low Noise and Microphonics
4. Matching
Options 3 and 4 seem most desirable for a preamp. My question is whether it is worth the extra few dollars (approx. $6 per tube) or is it just a pure marketing ploy to get suckers like me to drop more dough?