tubes - not tubs
ecc88 - not eq88
just get direct replacements
those are good tubes
https://tubedepot.com/products/6922-jan-philips
get them low noise and matched
this is the standard issue from audio research these days
or you can buy them from arc directly, pay about double
ecc88 - not eq88
just get direct replacements
those are good tubes
https://tubedepot.com/products/6922-jan-philips
get them low noise and matched
this is the standard issue from audio research these days
or you can buy them from arc directly, pay about double