koike
100+ Head-Fier
- Joined
- Mar 15, 2007
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No tweaks* - the E90CC/5920 is a drop-in replacement for the 6J6, but it is quite a bit superior - less noise floor, less distortion. An additional benefit is that they are tall enough that you can swap them out without taking the case lid off.
* Just to be sure, you need to implement both the zener diode tweak and the heater rectifier snubber caps. Those are the primary differences from the early Torpedo prototypes and kits versus now. Both make a huge difference.
I can't quite remember when I built my torpedo. I believe it has the Zener diode tweak. But regarding the heater rectifier snubber caps. I don't believe I've done that.
I think I built mine when you first released black cases.