| Manufacturer | Part Number | Description |
|---|---|---|
RFT |
ECC81 | Steile Doppeltriode |
Philips Semiconductors |
ECC81 | Double Triode 1955 |
JJ |
ECC81 | A. F. DOUBLE TRIODE |
Ei-RC |
ECC81 | Double Triode |
RCA |
ECC81 | Beam Power Tube |
TELEFUNKEN |
ECC8100 | Twin Triode |
|
Philips Semiconductors |
ECC81 | R.F. Double Triode 1969 |
| BRIMAR BRIMAR | ECC81 | Receiving Valve |
| ETC Unknown Manufacturer | ECC81 | Double Triode |
MAZDABELVU |
ECC812 | Double Triode |
|
MAZDABELVU |
ECC81 | Double Triode |