Stornophone 33

Commonly known just as as the Stornophone the type designations were CQM33 for the 70-88 MHz and CQM13 for the 152-174 MHz band. Introduced in the mid-fifties, there was also a mains powered range for fixed station use.

The Stornophone's construction consisted of the transmitter, receiver and powers supply sections built up on a common chassis suspended from the front panel. This assembly slides drawer style into a steel cabinet retained by a pair of snap fasteners. The cabinet is dust and splashproof.

Technical Developments

The early Stornophone used a mechanical vibrator power supply to convert the vehicle DC battery voltages up to the voltages required for the valve HT supply but by the late fifties a pair of 2N441 (24V sets used 2N174) transistors were being used. These later models are easily identified by the large heatsink mounted between the front panel connectors. Transistors were also to be found in the control head microphone preamplifier. Channel spacing was initially 50 kHz but the The Stornophone was also the first mobile approved for 25kHz operation in the UK.

Special versions include a marine edition with the ruggedised CB13-5 channel control head and 6 channels instead of the usual 4.

The Stornophone was designed with a main transceiver unit and remote control head. the standard control head featured a channel switch with positions for off and channels 1 through 4 which also doubled as the transmit switch when pressing down on the knob. The volume switch had 5 positions and pressing it in enabled the transmitter pre-heating (approx 30 seconds warm-up time). The 100V DC shaver socket was on the right side at the rear of the box!

The cabinet could be mounted at any angle from horizontal to vertical but not in any position where it was likely to be covered by luggage etc. as this would risk overheating of the unit.


	Page Updated 9 May 2004 What would you like to see on this site? VOTE NOW		Stornophone 13/33 Commonly known just as as the Stornophone the type designations were CQM33 for the 70-88 MHz and CQM13 for the 152-174 MHz band. Introduced in the mid-fifties, there was also a mains powered range for fixed station use.

			Design features The Stornophone's construction consisted of the transmitter, receiver and powers supply sections built up on a common chassis suspended from the front panel. This assembly slides drawer style into a steel cabinet retained by a pair of snap fasteners. The cabinet is dust and splashproof.

			Technical Developments The early Stornophone used a mechanical vibrator power supply to convert the vehicle DC battery voltages up to the voltages required for the valve HT supply but by the late fifties a pair of 2N441 (24V sets used 2N174) transistors were being used. These later models are easily identified by the large heatsink mounted between the front panel connectors. Transistors were also to be found in the control head microphone preamplifier. Channel spacing was initially 50 kHz but the The Stornophone was also the first mobile approved for 25kHz operation in the UK.

			System capabilities Special versions include a marine edition with the ruggedised CB13-5 channel control head and 6 channels instead of the usual 4.

			CB13-4 The Stornophone was designed with a main transceiver unit and remote control head. the standard control head featured a channel switch with positions for off and channels 1 through 4 which also doubled as the transmit switch when pressing down on the knob. The volume switch had 5 positions and pressing it in enabled the transmitter pre-heating (approx 30 seconds warm-up time). The 100V DC shaver socket was on the right side at the rear of the box!

			Installation The cabinet could be mounted at any angle from horizontal to vertical but not in any position where it was likely to be covered by luggage etc. as this would risk overheating of the unit.

			Forward: Storno Viscount

Stornophone 13/33

Design features

Technical Developments

System capabilities

CB13-4

Installation