![](images/Misc/MISC95.GIF)
Westinghouse AC
2-stage Amplifier
1922
|
![](images/British/BRIT19.GIF)
Burns &Dudgon Amplifier
(British)
|
![](images/Misc/Radiola-Balanced-amp.jpg)
Radiola Balanced
Amplifier
1923
![](images/Misc/MISC02.GIF)
Radiola 1400A
Amplifier
1923
|
![](images/Misc/MISC65.GIF)
Western Electric 7A
Amplifier
1922
|
![](images/British/BRIT20.GIF)
Edison Bell Note Magnifier
(British)
c. 1923
|
![](images/British/BRIT21.GIF)
Fellophone 2-Valve Amplifier
(British)
1922
|
![](images/British/BRIT22.GIF)
Fellophone 2-Valve Amplifier
(British)
![](images/Regens/REGEN55.GIF)
Radiophone Amplifier
1922-1923
|
![](images/British/BRIT23.GIF)
HPR Wireless Ltd. Simplex Amplifier
(British)
1922
![](images/British/BRIT38.GIF)
Marconiphone Headphone Distributor
(British)
1925
|
![](images/British/BRIT24.GIF)
Brown Microphone Amplifier - closed
(British)
1923
![](images/British/BRIT25.GIF)
Brown Microphone Amplifier - Open
(British)
1923
|