M0014865: Diagram of early diathermy triode valve used in diathermy apparatus as a transmitter or source of undamped oscillations, 1925
- Date:
- August 1956
- Reference:
- WT/D/1/20/1/132/93
Licence: In copyright
Credit: M0014865: Diagram of early diathermy triode valve used in diathermy apparatus as a transmitter or source of undamped oscillations, 1925. Source: Wellcome Collection.
