Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Jack1962 on January 11, 2011, 11:25:41 am

Title: 6CA7 verse's EL34
Post by: Jack1962 on January 11, 2011, 11:25:41 am

This may be a  stupid question but here goes , is there any difference in the big bottle 6CA7 and the El34, to my ears I hear a diffenece.

                                                   Rock On

Title: Re: 6CA7 verse's EL34
Post by: jojokeo on January 11, 2011, 12:37:47 pm

You should hear differences btwn diff makes of el34s or even tubes of the same manufacturer. This is why Groove Tubes marks tubes w/ diff #'s for early or late break-up.

Title: Re: 6CA7 verse's EL34
Post by: Willabe on January 11, 2011, 01:32:01 pm

Quote from: Jack1962 on January 11, 2011, 11:25:41 am

This may be a  stupid question but here goes , is there any difference in the big bottle 6CA7 and the El34, to my ears I hear a diffenece.

                                                   Rock On

Real EL34 has a suppressor grid and softer vacume, US made 6CA7 is a hard vacume tube and has beam forming plates instead of suppresor grid for grid 3 structure.

Should sound different.


               Brad          :smiley: