R - Receiver

Was earphones, morphed into radio receiver under JETDS,

• R-1 telephone W/ rubber earpiece
• R-2 telephone P-11
• R-3 telephone watchcase type ? HS-20
• R-4 ??
• R-5 telephone HS-3
• R-6 telephone desk and wall
• R-7 telephone TS-3, HS-8
• R-8 telephone M-67, M-68

(NOTE- 1920 storage catalogue ends here)

• R-9, telephone 1924,
• R-10,telephone 1924,
• R-11,telephone 1924, EE-64
• R-12
• R-13 earphone, telephone, P-13, 1931
• R-14 earphone, used in headsets as well as helmets HS-22, HS-23, P-23, HS-18
• R-15 earphone, P-14, P-19
• R-16 earphone
• R-17
• R-18, earphone for HS-20
• R-19,
• R-20
• R-21 earphone, HS-17, HS-27
• R-22 earphone, HS-19
• R-23,
• R-24,
• R-25,
• R-26,
• R-27, earphone, P/O BC-792, HS-34
• R-28,
• R-29,
• R-30 earphone HS-29, HS-30

(appears to be the last SCR number)