I don't know who made it as the back is missing. I haven't really looked at it yet so there may be information inside.
As for speaker cloth, should I?
It is sort of appropriate and goes with the design idea of using what's available.
I'd already realised that the OPT would need re-homing.
Thanks for the info on the Valve, Chris. I knew that silver and gold coatings were for screening but wasn't sure about the red ones. Luckily there's one in my Fergy so that can be used for test purposes if needs be.
Thanks for the help and info everybody.
- Joe
As for speaker cloth, should I?
It is sort of appropriate and goes with the design idea of using what's available.
I'd already realised that the OPT would need re-homing.
Thanks for the info on the Valve, Chris. I knew that silver and gold coatings were for screening but wasn't sure about the red ones. Luckily there's one in my Fergy so that can be used for test purposes if needs be.
Thanks for the help and info everybody.
- Joe






