20-07-2012, 05:55 PM
Sounds like the EF85 then.
If they are Mullard (or another Philips brand) valves they have another set of numbers etched on which can be deciphered, though it ain't easy!
- Joe
If they are Mullard (or another Philips brand) valves they have another set of numbers etched on which can be deciphered, though it ain't easy!
- Joe
