ID:
2019
Maker's Name:
Philips
Where made:
Other
Dimensions:
3.9 × 3.9 × 9.5 cm
This triode valve was used in early radio receivers of the 1920s. It only has an amplification factor of 9. It was used both for RF and AF applications.
This triode valve was used in early radio receivers of the 1920s. It only has an amplification factor of 9. It was used both for RF and AF applications.