![The principles underlying radio communication . mi-nated armature, and the disk. The slot filled with non-magnetic material is shown at F. The usual air gap is 0.015inch, so that a very The principles underlying radio communication . mi-nated armature, and the disk. The slot filled with non-magnetic material is shown at F. The usual air gap is 0.015inch, so that a very](https://c8.alamy.com/comp/2CRMKD6/the-principles-underlying-radio-communication-mi-nated-armature-and-the-disk-the-slot-filled-with-non-magnetic-material-is-shown-at-f-the-usual-air-gap-is-0015inch-so-that-a-very-slight-defect-in-construction-will-causea-serious-accident-in-the-radio-station-at-new-brunswick-n-j-there-is-analexanderson-alternator-having-a-rated-output-of-200-kwgenerated-at-a-frequency-of-about-22100-cycles-per-second-whenthe-alternator-is-running-about-2170-rpm-similar-alterna-206-dynamo-electric-machinery-tors-are-in-use-at-tuckerton-n-j-and-marion-mass-inthis-alternator-the-rotor-2CRMKD6.jpg)
The principles underlying radio communication . mi-nated armature, and the disk. The slot filled with non-magnetic material is shown at F. The usual air gap is 0.015inch, so that a very
![Multifunctional Radio Hand Crank Solar Crank Dynamo Powered Digital Am/fm Radio With Led Lights 5000 Mah Power Bank Sos Compass - Radio - AliExpress Multifunctional Radio Hand Crank Solar Crank Dynamo Powered Digital Am/fm Radio With Led Lights 5000 Mah Power Bank Sos Compass - Radio - AliExpress](https://ae01.alicdn.com/kf/S3613364c37a84028bf5452002cbc78ce0/Multifunctional-Radio-Hand-Crank-Solar-Crank-Dynamo-Powered-Digital-AM-FM-Radio-with-Led-Lights-5000.jpg_Q90.jpg_.webp)
Multifunctional Radio Hand Crank Solar Crank Dynamo Powered Digital Am/fm Radio With Led Lights 5000 Mah Power Bank Sos Compass - Radio - AliExpress
![Dooomore Pocket Radio Station Portable Fm Rechargeable Solar Powered Crank Dynamo Usb Emergency Portable Radio 4000mah - Buy Solar Power Radio With Torch,Solar Dynamo Radio,Panel Solar Radio Portable Product on Alibaba.com Dooomore Pocket Radio Station Portable Fm Rechargeable Solar Powered Crank Dynamo Usb Emergency Portable Radio 4000mah - Buy Solar Power Radio With Torch,Solar Dynamo Radio,Panel Solar Radio Portable Product on Alibaba.com](https://sc02.alicdn.com/kf/Hcff0bee837014f2d85a55758b179e127o.jpg)
Dooomore Pocket Radio Station Portable Fm Rechargeable Solar Powered Crank Dynamo Usb Emergency Portable Radio 4000mah - Buy Solar Power Radio With Torch,Solar Dynamo Radio,Panel Solar Radio Portable Product on Alibaba.com
![Radio de mano multifuncional, dispositivo Solar de emergencia con manivela, linterna LED, Radio Meteorológica FM/AM, batería externa de 1000 MAh|Radio| - AliExpress Radio de mano multifuncional, dispositivo Solar de emergencia con manivela, linterna LED, Radio Meteorológica FM/AM, batería externa de 1000 MAh|Radio| - AliExpress](https://ae01.alicdn.com/kf/Haaf2de68245640729637008f2c47642bG.jpg)
Radio de mano multifuncional, dispositivo Solar de emergencia con manivela, linterna LED, Radio Meteorológica FM/AM, batería externa de 1000 MAh|Radio| - AliExpress
![Radio Solar, Radio de Emergencia Portátil con Manivela, Radio Dynamo Weather Am/FM/SW, Cargador de Teléfono USB, Linterna LED y Luz de Lectura, Alarma SOS, Brújula para Acampar al Aire Libre : Amazon.es: Radio Solar, Radio de Emergencia Portátil con Manivela, Radio Dynamo Weather Am/FM/SW, Cargador de Teléfono USB, Linterna LED y Luz de Lectura, Alarma SOS, Brújula para Acampar al Aire Libre : Amazon.es:](https://m.media-amazon.com/images/I/71dhVieyhkL._AC_SX450_.jpg)