Collins 26C Analysis

[Disco Volante]

Staying in b7g, the ECC91 might replace the 6C8G, seeing as the cathodes are directly connected..

 

[DaveP]

Looks like a trusty old ECC82 would also get you there

Yes you are right, it would do the job, but I was sticking to the same type, mu20 ra10k.
The replacement for the 6J7 was the single ended 6SJ7 and that has the same triode characteristics as the 6J5 and half of a 6SN7, the ECC82 comes into that class as well.
best
DaveP

 

[DaveP]

Staying in b7g, the ECC91 might replace the 6C8G, seeing as the cathodes are directly connected..

The 6C8G is next on my list
best
DaveP

 

[Disco Volante]

Point taken, I need to look at *all* the parameters when looking for subs. I guess in this case Ra is of particular interest since we're driving transformers. ECC82 has mu17, but higher Ra (47k if I read the spec sheet right).

This would be a fun and useable project to recreate! Following with great interest!
Cheers, V!