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This manufacturer was suggested by John Koster.
Country |
Year |
Name |
1st Tube |
Notes |
GB |
27 |
Cantophone Portable Two |
|
Grid-leak detector, transformer-coupled LF valve. Wave range 250-550 and 1350-1800 metres.... |
GB |
27 |
Cantophone Portable Three |
|
Grid leak detector, two transformer-coupled LF valves. Wave range 250-550 and 1350-1800 me... |
GB |
27 |
Cantophone Portable Four |
|
Tune anode HF valve, grid leak detector, two transformer-coupled LF valves. Wave range 250... |
GB |
27 |
Cantophone Cabinet Portable Three |
|
Grid leak detector, two transformer-coupled LF valves. Wave range 250-550 and 1350-1800 me... |
GB |
27 |
Cantophone V3 |
|
Grid-leak detector plus two transformer-coupled LF valves. Wave range 250-550 and 1350-180... |
GB |
27 |
Cantophone Cabinet Portable Four |
|
Tuned anode HF valve, grid leak detector, two transformer-coupled LF valves. Wave range 25... |
GB |
27 |
Cantophone V2 |
|
Grid-leak detector plus transformer-coupled LF valve. Wave range 250-550 and 1350-1800 met... |