Two-valve amplifier, Mk. III**, complete with one White valve and one Audion valve, inscribed 'Valve amplifier Mk III**' and 'W/T factory W.D. [War Department] Soho W.', British, c. 1917
Details
- Category:
- Radio Communication
- Object Number:
- 1924-168
- type:
- valve amplifier
- credit:
- War Office (Royal Dockyard)