- Dec 18, 2016
- Reaction score
Some more detailed pictures would help. Like the plate structures and the mica spacers. The bottom of the bottle probably isn’t going to reveal anything. The seam area where the base portion was attached to the envelope, the top of the glass where the envelope was swedged and the evacuation tube sealed. Amperex was Holland. If I was going to fake a Mullard, I’d at least make it Britain. Mullard and Amperex had etch codes. Previous pictures aren’t enough to tell much of anything.