The RCA valves
6DJ8 (ECC88)
|
"RCA" (Amperex) 6DJ8 made in Holland (steel pins) |
|
"RCA" (Siemens) 6DJ8 made in West Germany (steel pins) |
6922 (E88CC)
|
"RCA" (Siemens) 6922 made in West Germany (gold pins) |
7308 (E188CC)
|
"RCA" (Siemens) 7308 made in West Germany (gold pins) |
