| Tatjana J. van Vark |
| HOME | INDEX |
Regenerative LW receiver |
Tube: Philips A-410 (1924) |
Tube: Philips E (1920) |
RRR Mk 2 (2020) |
| Tatjana J. van Vark |
| HOME | INDEX |
|
Regenerative LW receiver |
Tube: Philips A-410 (1924) |
Tube: Philips E (1920) |
|
RRR Mk 2 (2020) |