You need to use a tube equivlent table, not just pick tubes with similar names/codes
http://www.angelfire.com/electronic/funwithtubes/tube_select_guide.html
http://www.angelfire.com/electronic/funwithtubes/tube_select_guide.html
PrimaLuna preamps. Use of 5R4GY tubes instead of 5AR4 / GZ34. Yes or no?
You need to use a tube equivlent table, not just pick tubes with similar names/codes http://www.angelfire.com/electronic/funwithtubes/tube_select_guide.html |