Contact
Back Next Home

 Misc. Wireless Apparatus

 


Boyer Lowe Wavemeter
(British)


Forward Spark Wavemeter
(British)


Heterodine Wavemeter
(British)

 
Kilborne & Clark Wavemeter
c. 1920


Fessenden Wavemeter
c. 1906

 
Kilborne & Clark Capacity Bridge 
c. 1920


Clapp Eastham BQ
Wavemeter
1921


General Radio Wavemeter
c. 1919


Burndept Ethophone Wavemeter
(British)


General Radio
Type 566-A Wavemeter


General Radio
Type 758-A Wavemeter


Marconi Wavemeter #2
100-2500 Metres
1906



Murdock Tuning Condenser
1914


Murdock Tuning Condenser
Approx. 1916


L.S. Brach Antenna Reel
1918
Used in conjunction with WWI aircraft wireless equipment


Early Step Attenuator Switch
c 1890'S


Brown Telephone  Relay
1914

This ingenious device uses a very sensitive relay as an audio amplifier.  It was used to boost the weak audio output of early wireless systems.


AWA High Voltage Condenser
1919

 


Aerial Switch
(Manhattan?)
c. 1912
 


Murdock Condenser
Approx. 1916
 

Western Electric D 14293
Aircraft Microphone
1918
Used with WE SCR68 transceiver
Holtzer Cabot Headphones
c. 1916
Gamage code practice set
(British)

Tuning Inductance
Collins Wireless Telephone Co.
ca. 1906
DeForest Variable Condenser		  

Wireless Telegraph Franks



These were given to employees of the wireless companies to use in lieu of payment for wireless transmissions.  They are essentially a "wireless postage stamp."
 
Contact
Back Next Home