Production Year 1964 at $79.95
The Hallicrafters Little Fone CB-11 is a compact, single channel walkie-talkie transceiver that operates in the 27 MHz citizen band(CB) frequencies. It is a crystal controlled transceiver that employs 9 transistors in its circuit. The CB-11 is some what similar to the Hallicrafters CB-6. The Intermediate Frequency(IF) is 455 kHz. The transceiver has been equipped and adjusted at the factory to operate on 27.065 MHz, which is channel 9 of the citizen band.
From the factory, the CB-11 is only able to operate on one frequency. The user is not able to simply spin a dial to change frequencies. Although it is possible for the transceiver to operate on any of the lower 23 channels of the citizen band. In order for it to do so, the unit will need to be disassembled and the plug in quartz crystals will need to be replaced with those of the proper frequency. As was so often the case, there are two of these plug in crystals, one for receive and the other for transmit. Should the crystals be replaced for operation on one of the citizen band channels 2 through 23, no transmitter adjustments are required. The loudspeaker which faces out towards the front of the unit is of the permanent magnet moving coil design. Received signals exit through a perforated section on the front of the unit. The speaker is rated at 8 ohms and has an audio output rating of 125 Milliwatts. The speaker doubles as a microphone and should be held about four inches away from the speakers mouth when transmitting. The entire transceiver is housed in a sturdy metal cabinet.
The CB-6 has a built in 39 inch telescoping whip antenna located on the top of the transceiver. On the left side of the transceiver is a Push-To-Talk(PTT) button, while the right side sports the On/Off plus Volume control dial. A plug for a set of low impedance earphones can be found on the bottom of the CB-11. The transmitter section is rated at 100 Milliwatts input and is able to produce an Amplitude Modulated(AM) signal at a modulation rate of 85%. This transceiver requires a common 9 volt battery as the power source. Under normal operating conditions, the battery is expected to last up to 12 hours. Battery replacement will be more frequent when operating the unit under 32 degrees Fahrenheit. The battery cover plate which is held on by a single screw will need to be removed for battery replacement. A battery condition meter is located on the bottom left hand corner of the front panel.
The Hallicrafters Little Fone CB-11 was manufactured in Japan. It weighs in at 10 ounces without the battery. The physical dimensions are 6 3/8 inches long by 2 3/4 inches wide by 1 1/2 inches deep. The CB-11 was sold in pairs and included with them was a set of earphones and carrying straps. The Hallicrafters company also produced a model CB-11A which had an extra transistor, bringing the total to ten.
The photograph on the left is of the front and back of the transceiver. The picture on the right shows both the top and bottom of the CB-11 transceiver.