Interesting..coud be possible do test of two triodes inside Korg Nutube ?
I am not qualify to give conclusion about flea and toob
my practical experience is only with audio vacuum tubes..
If You need something like 6DJ8 = ECC88 then professional version with two matched triodes reference is 7308
7308 E188CC JAN SYLVANIA NOS BOXED VALVE/TUBE (LC26) | eBay
In my humble opinion directly heated triodes is a Big Boyz Fun
VT-25 DHT Preamplifer – Bartola(R) Valves
there is a drekload of Russian 6Н23П (all Cyrillic) , they're practically the same as ECC88/6DJ8
also PCC88/7DJ8 , I mean - that's same tube , just different heater
I know that Tim de Paravicini is using E or P without any change , at least judging by fact that he's heating P ones with 6V3 , which is practically "E thing"
( E means heater on 6V3 as primary characteristic , while P means heater with 300mA as primary characteristic )
also PCC88/7DJ8 , I mean - that's same tube , just different heater
I know that Tim de Paravicini is using E or P without any change , at least judging by fact that he's heating P ones with 6V3 , which is practically "E thing"
( E means heater on 6V3 as primary characteristic , while P means heater with 300mA as primary characteristic )
Yes and best quality Russian equivalent of 7308 version is 6Н23П-EB ( in cyrillic) or 6N23P-EV
Thanks, guys for the comments. I did order some 6N23P from a seller near to Russia recently. I also ordered some Russian equivalent to 6BQ5 and 6L6 both of which can be operated in triode mode. I have a pair of very valuable UTC 20W toobz output transformers. I used these transformers to drive DIY electrostatic speakers that I built from scratch back in the 1980s.
Interestingly, I played extensively with toobz when I was a kid. My father was a ham radio operator and built a Heathkit toob ham radio and built his own antenna. All ham radio gear was toobz at that time even though car radio was solid state.
Now that I have access to a curve tracer, I can play much more effectively with some toobz and the the SITs, power JFETs, etc.
Interestingly, I played extensively with toobz when I was a kid. My father was a ham radio operator and built a Heathkit toob ham radio and built his own antenna. All ham radio gear was toobz at that time even though car radio was solid state.
Now that I have access to a curve tracer, I can play much more effectively with some toobz and the the SITs, power JFETs, etc.
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