Category:Vacuum tubes
Vacuum tubes aka Thermionic valves
Subcategories
This category has the following 8 subcategories, out of 8 total.
C
D
- Diode tubes (33 P)
H
- Heptodes (1 P)
N
- Nuvistors (8 P)
P
- Pentodes (108 P)
S
- Selected Tubes (2 P)
Vacuum tubes aka Thermionic valves
This category has the following 8 subcategories, out of 8 total.