The Electro-Harmonix EH 12AX7 is definitely a good choice for your amp. The 12AX7 is the American part number for the ECC83 . It is manufactured in Russia It is a very durable valve.
These valves give a very rich tone and they are sonically sweet. They have a good blend of tone, reliability and price. Many amp manufacturers fit Electro Harmonix valves in their current products.
We test your valve on our vintage AVO testers
Check out our Electro-Harmonix 12AX7 Preamp Valve in packs of 22.214.171.124,
We have shipping options for UK and international customers. Just make your selection at checkout. Get your valves delivered faster!
We also give a 180 day from receipt warranty on the product ( excludes user caused mechanical damage ) for peace of mind .