6AV6 in place of ECC83

[ppppenguin]

Comparing the data sheets of ECC83 and 6AV6 the triodes are almost identical. Don't know about the low noise credentials of the 6AV6 but that may not matter in your application.

Since ECC83s are relatively expensive, if you have 6AV6 around then why not use them if you just need a single triode.