| Type | Substitutes | Base Diagram |
|---|---|---|
| HL2 | VR27_2Volt, CV2991, VT105_GPO, CV1673 | |
| Web References | HL2 (Marconi) @ Franks Electron Tubes? HL2 (Osram) @ Franks Electron Tubes? HL2 (Mazda) @ Franks Electron Tubes? HL2 (Marconi) @ Franks Electron Tubes? HL2 @ Radiomuseum | |