18-09-2018, 07:22 PM
Hi Sam, if you know the output valve and the speaker impedance it is easy to work out the ratio , you could then find a suitable scrap one and use that.
As to the exact type, you will need to find one to work from and assume that you can get the probably imperial pattern lams.
Ed
As to the exact type, you will need to find one to work from and assume that you can get the probably imperial pattern lams.
Ed
