Tube Substitutions for:
PC900
Triode, vacuum
| Type | Substitutes | Base Diagram |
|---|---|---|
| PC900 | 4HK5†, 4HM5, 4HA5 |  |
| Notes: | † - Series circuit no controlled warm-up | |
| Web References | PC900 (Philips) @ Franks Electron Tubes PC900 (Mazda-Belvu) @ Franks Electron Tubes PC900 @ RadioMuseum.org | |
Triode, vacuum
MECHANICAL DATA
| Basing | 7GM |