- Transmitting Receiving CW 925
- Amplifier CW 926
- Dynamotor System CW 927
- Switch Board CW 928
- Loud Speaking Telephone CW 929
- Hand Set CW 930
- Trans. Vacuum Tubes CW 931
- Rec. Vacuum Tubes CW 933
- Transmitter Amp CW 967
- Filter CW 968
- Antenna Switch CW 969
- Range 250M t 400M
- Serial No. 158
- Req. No. NSA 1216-18
- Cont. No. Date 1918
Transmitter Receiver Type CW925
Short Range Radio Telephoning Set for 32 Volt DC supply consisting of:
Used on Eagle & Small Patrol Boats in WWI. The world’s first push-to-talk radio. It has essentially the same parts as a radiotelephone of 1915.