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Bicycle Radios

1934 Bicycle Radio Larger Image
- Bicycle Radio History -

Bicycles predated consumer radios by at least 50 years but as soon as radios and their battery cases became physically small enough to mount on a bicycle many attempts were made and a few were even documented in magazines.

The magazine article at left from 1934 details mounting a early vacuum tube radio along with it's batteries on a bicycle and instructions for constructing and mounting a loop antenna on top of the radio. Notice the radio chosen is not large enough to power a speaker and headphones would need to be worn by the rider. Read an earlier article from the 1920s here.

It wouldn't be until just before World War II that a radio designed specifically for bicycles would appear in radio stores and bicycle shops.

After World War II the vacuum tube bicycle radios manufactured offered smaller battery packs or had the batteries installed inside the radio case. By the later 1950s transistors were replacing vacuum tubes in bike radios and in addition to smaller sizes, features like internal ferrite antennas, integrated headlights and horns began to appear.

Today's bike radios can fit in the palm of your hand, play your digital music collection and can have built in GPS giving you maps, your location. speed, direction, altitude, and more.

The Motorola B-150 Bicycle Radio
Motorola B-150 Bicycle Radio - 1940


In the late 1930s Motorola was commissioned to build bicycle radios that could be mounted on policeman's bicycles. These were tuned specifically for picking up broadcasts on a predetermined police frequency. Expanding on this idea, Motorola in 1939 introduced the model B-150 bicycle radio. The B-150 could tune in the entire broadcast band (AM).

The Motorola B-150 was a three vacuum tube radio with a separate battery pack. The battery pack was designed to clamp to the down tube of the bicycle and the whip antenna could be bent forward and clipped to the front fender. The radio was bright red with blue speaker grill cloth.
The B-150 chassis in my collection shown here has been recapped.

Larger Photo
Chassis - Top
Chassis - Bottom
Brackets and Fender Clip
Factory Schematic
(PDF File)

1941 Brochure Cover   Brochure Inside - Boy Its Keen

1940 advertisement
1940 Motorola B-140 Advertisment

Radio Bike Contest
Radio Bike Contest Ad

Tom Thumb Bicycle Radio The Tom Thumb Bicycle Radio

The Tom Thumb bicycle radio was manufactured in 1949 by the Automatic Radio Manufacturing Co. Boston Mass.. It was a four tube AM radio. Powered by two 1.5 volt and one 67.5 volt battery. The batteries were internal in the Tom Thumb and no external battery pack was required.

This is a popular radio among both bicycle and radio collectors. It is seldom found with it's original mounting brackets. If you have one available please contact me.
Larger Picture
Chassis Photo
Service File with Schematic
(PDF File)

Tom Thumb Radio Chassis

Darb Holiday Bicycle radio

The Darb Holiday Bicycle radio was manufactured in the mid 1950s by the S. C. Ryan Co., Minneapolis Minnesota.

The Darb bicycle radio was available in at least three colors, red, blue, and green. It used four vacuum tubes and came with a detachable battery pack that clipped to the bottom of the radio or as an option, used a set of wired brackets to mount the radio on the handlebars and the battery pack on the rear carrier. There was also an AC power supply available to replace the battery pack when the radio was used indoors.

The Darb used some rather unique off the shelf parts in it's construction.

More Information, Photos, and Service Manual

darb Holiday Radio

1955 Huffy Radio Bike The Huffy Radio Bike - 1955, 1956

The Huffy Radio Bike Was manufactured in 1955 and 1956. It had a radio built into the tank with a battery pack on the rear carrier. It was available in red and green. I would guess that red was the most popular color as most that have survived are red.

Huffy Radio Bike Information:
More photos, schematic, and history

The Triumph Transistorized Bike Radio Transistor Bike Radios

By the 1960s transistors had replaced vacuum tubes in bicycle radios. Batteries lasted longer (if you remembered to turn it off), and horns and lights were added.

The Triumph transistorized bicycle radio (left) contained a radio, horn, and light. It came with a strap and quick disconnect bracket so you could take it with you. It was powered by two D batteries for the horn and light and a nine volt battery for the radio.
Larger Photo    Inside Photo    Controls    Light


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