ot primary impedance question

[mikhett]

What is the differnce in primary impedance between a pair of 7591 tubes in pp and 6v6s operating in pp class ab?. The reason i ask is i took the 7591s out of my AMPEG reverbrocket 2(original) 10 yrs ago because of tube availability and rewired the sockets to use 6v6s. Now Im wondering if there is an impedance mismatch? An should i go back to7591s because now you can get them. Thanks Mike

[black_labb]

what operating conditions? look at the data sheets. there is a wide range of suitable impedances when it comes to tubes.