Quote from: Bandito on April 06, 2024, 04:15:56 PMWould this one work? https://www.hotroxuk.com/accutronics-blue-reverb-amc2bf3.htmlThat is too low input impedance. If you want to go with that miniature type, use the AMC2EF2. In my experience, the miniature type do not sound very good.
If there is not enough room for a 17" tank you can get a 9" type. For MOD or Accutronics brand, 4EB2C1B is 17", 8EB2C1B or 9EB2c1B are 9" long types.
You may find them for less money at other UK sellers, like Watford valves, etc.