|
LA RADIOTECHNIQUE
| ECF80 |
Triode - Pentode |
|
Unknown Manufacturer
| ECF80 |
Triode Pentode |
MAZDABELVU
| ECF80 |
Triode - Pentode |
RCA
| ECF80 |
Triode Sharp-Cutoff Pentode |
Philips Semiconductors (now NXP Semiconductors)
| ECF80 |
Triode Pentode |
|
MAZDABELVU
| ECF802 |
Triode - Pentode |
|
RCA
| ECF802 |
Triode Sharp-Cutoff Pentode |
TELEFUNKEN
| ECF802 |
Triode - Pentode |
|
LA RADIOTECHNIQUE
| ECF802 |
Triode - Pentode |
|
Philips Semiconductors (now NXP Semiconductors)
| ECF80 |
Triode - Pentode 1969 |
|
Philips Semiconductors (now NXP Semiconductors)
| ECF801 |
Triode - Pentode 1962 |
|
Philips Semiconductors (now NXP Semiconductors)
| ECF80 |
Triode - Pentode 1957 |
|
MAZDABELVU
| ECF801 |
Triode - Pentode |
|
Philips Semiconductors (now NXP Semiconductors)
| ECF801 |
Triode - Pentode 1969 |
|
RCA
| ECF801 |
Triode Sharp-Cutoff Pentode |
|
TELEFUNKEN
| ECF8070 |
Triode - Pentode |
|
Philips Semiconductors (now NXP Semiconductors)
| ECF802 |
Triode - Pentode 1969 |
|
BRIMAR
| ECF804 |
Triode - Pentode |
