Tung-Sol 12AX7 (ECC83, 7025)
The Ultimate Tung-Sol 12AX7. Big, warm, and musical. High Gain, ultra-low microphonics, and superb linearity with a dynamic 3-D sound.
These units are premium hand tested in my Nottinghamshire workshop to ensure consistency. You’ll receive an individual test label with the valve.
The 12AX7 (or ECC83 if you’re a Brit) is the most commonly used valve in guitar amplification. Tung-Sol 12AX7 are among the more highly respected of the modern valve names. I particularly like these for valve position V1 in a combo or a high gain head because Tung Sol apply strignent microphonics tests to these valves to prevent unwanted noises.
I’ve recently started using these in place of my usual EHX valves because of their superior low noise performance.
About Keld Ampworks and RSD Sound
I run an independent repair workshop, repairing valve amplifiers and doing guitar amp repair for customers in the East Midlands and across the UK. I sell valves and guitar based electronics as RSD Sound, only offering products that I’m confident I would use in my own amplifiers.
If you’re wondering whether this product would suit your amplifier, please just drop me a line for some advice. I’ve installed hundreds of new valves in guitar and bass amps and there’s nothing I like more than talking about it!