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
height:101mm-socket diameter:32mm-bulb diameter:32mm (info can variy!)
EL 34

Noval B9A 9-Pin Gold Plated tube-valve-base-Röhrensockel
The best performing 12AX7-ECC83-ECC803s 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
height:56 mm - bulb diameter: 22 mm (info can variy!)
ECC 83

Noval B9A 9-Pin Gold Plated tube-valve-base-Röhrensockel
The best performing 6189W-E82CC-ECC802s 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
height:55 mm - bulb diameter: 22 mm (info can variy!)
ECC 82-ECC 802

Noval B9A 9-Pin tube-valve-base-Röhrensockel
The 7025 is the best choice for Fender© and all other 7025 tube stages
It holds the 7025 specifications with a perfect creamy and warm sound
It is extra handselected for low microphony, low noise and low hum
The tube is designed and made in Europe
S4GB ® "Selected For Guitar & Basses" is a registered Trademark by BTB
height:55mm - bulb diameter:22mm (info can variy!)

Noval B9A 9-Pin GOLD plated-tube-valve-base-Röhrensockel
The perfect 12BH7A for all 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
height:56 mm - bulb diameter: 21 mm (info can variy!)