Details
Nine valves:
Mullard ORA, BTH B5, Cosmos Short Path, Cossor P1, Cossor P2, Marconi DE6, Lissen AVC2, Mazda Baird photocell, Marconi S625 screened grid, mounted on a board (9)
Mullard ORA, BTH B5, Cosmos Short Path, Cossor P1, Cossor P2, Marconi DE6, Lissen AVC2, Mazda Baird photocell, Marconi S625 screened grid, mounted on a board (9)