Same amplifier !  Different tube !   Different voice !
Trying different voice by tube and adapter.Needn't change tube amplifier anything.Just connect tube and socket adapter.

Liquid epoxy Resin encapsulation to ensure the perfect shielding property.
100% The polytetrafluoroethylene(Teflon) and Silver-Plated Wire.  Specialty:high temperature resistance.

Top 8pin tube saver pin is 360° surround your tube pin.
Every tube pin is a thick gold-plated copper column, not a very thin sheet metal.
The upper half of each copper column is cut 5 times to form 6 copper bar units.
More flexible than uncut copper columns.

Product Description