Try a number 39. Cutoff is different but they usually work. A #64 would be nice but they are rare. Made by National Union and only a year or so.
Depending on the circuit #38 might work. Made as an output tube but will also operate as #36 under some conditions.
Norm
:Are there any tubes that can sub for a 36(236,136) tube without changing anything?
If you can't find a tube that works send an email. I have 36's.
Norm
:Are there any tubes that can sub for a 36(236,136) tube without changing anything?
If you can't find a tube that works send an email. I have 36's.
Norm
:Are there any tubes that can sub for a 36(236,136) tube without changing anything?