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

12AX7 or 12AU7 12AT7 ECC81 ECC82 ECC83 7025 CV4003 CV4004 5751 5814 6021( 6.3V ) vacuum tubes were originally used on the machine. After plugging in the adapter, you can use 6SN7 / 6SL7 / 6N8P / 6N9P/CV181/ECC33/ECC35/5691/6592/B65 vacuum tubes.

Note: The vacuum tube originally used on the machine must be 6.3V.

6SN7 TO 12AX7 6.3V Copper
Production Introduction
1. Use high-quality EIZZ 8pins gold-plated ceramic socket. Ceramic have excellent electrical conductivity
2.Housing material uses high-quality copper
3. Liquid epoxy Resin encapsulation to ensure the perfect shielding property.
4. Ceramic socket and gold plated pins for long life，Tough gold pins with a thick gold plating.
5. Tin plated soldering .

6SN7 TO 12AX7 6.3V Bakelite
Production Introduction
1. Use 8pins gold-plated ceramic socket. Ceramic have excellent electrical conductivity
2.Housing material uses black bakelite
3. Liquid epoxy Resin encapsulation to ensure the perfect shielding property.
4. Ceramic socket and gold plated pins for long life，Tough gold pins with a thick gold plating.
5. Tin plated soldering .