Noval B9A 9-Pin Gold Plated tube-valve-base-Röhrensockel
The best performing 6201W-E81CC-ECC801s from current Production
It is extra handselected for low noise, low hum, low leakage, low THD
It puts out the best Audio performance with most possible details
S4A ® "Selected For Audio" is a registered Trademark by BTB
ECC 82-ECC 802

Octal K8A 8-Pin tube-valve-base
The perfect ECC35-CV1985-6SU7-VT229-6188 for Audio & Studio Applications
It is extra handselected for low noise, low hum, low leakage
The tube puts no extra sound to the device - it sounds very neutral
S4A ® "Selected For Audio" is a registered Trademark by BTB

8-pin tube/valve/Röhrensockel socket for: EL34-6CA7-KT66-KT77-KT88-KT120
Teflon type, contacts 24K GOLD plated, machined contacts
hole diameter for enclosure: 27mm, Pin diameter: 1,8mm
distance for chassis screws: 36-37mm (3mm screws)
can be used for PCB mounting or wire connection with chassis mount
it is possible to put it on the upper or lower side of the chassis
good chassis thickness is 2,5mm-3,5mm

Octal K8A 8-Pin tube-valve-base
The perfect 6SN7GT-VT-231-5692-6180 for Audio and Studio Applications
It is extra handselected for low noise, low hum, low leakage
The tube puts no extra sound to the device - it sounds very neutral
S4A ® "Selected For Audio" is a registered Trademark by BTB

Octal K8A 8-Pin tube-valve-base
The Premium EL34 for your Guitar or Bass Amp all brands
It is extra handselected by BTB for low leakage and Premium matching
The original sound and Power of the Amp is the Focus for this tube
The tube is designed and made in Europe
S4GB ® "Selected For Guitar & Basses" is a registered Trademark by BTB
EL 34