Click the images below to view our current exhibits.

Gallery 1: From Spark to Byte
Gallery 1, the entrance gallery, displays a set of artifacts showing the remarkable evolution of electronics over the past century plus. In might be called a preview of what else you will see in the museum. Early radio was an outgrowth of the telegraph industry and so the oldest artifact here (and also the oldest item in the museum collection) is a specimen of the first trans-Atlantic telegraph cable from 1858. Additional artifacts in this gallery reflect other important milestones in the development of electronics, and include a rare de Forest Audion tube, the first device capable of amplifying weak signals, a homemade crystal radio of the 1920s when radios first began appearing in American living rooms, a circa 1930 Philco “cathedral” style radio, exemplifying a typical radio found in homes during the “Golden Age of Radio,” a late 1940s Pilot television set with a tiny picture tube, representing the least expensive television set available during the era when television began entering typical homes, a Regency TR-1, the first transistor radio offered to consumers, and lastly, an Apple smart phone, representing the modern era when one hand-held device encompasses radio, television, a digital camera, stored photos and music, and Internet access.
Gallery 2: Birth of Broadcasting
Walking into the first upstairs gallery brings the visitor to exhibits about the inception of radio broadcasting. A handful of radio stations begin to offer a planned schedule of programs—mostly music with some talks—in 1920. They were typically on the air but an hour or two in the evening—daytime programming would take several years to develop. Of course, nobody knew what a radio “program” was at first, and different types were developed during this period. Most early announcers were anonymous and few people were paid to be “on the air.” Would-be listeners built their own crystal sets or, if they can afford it, vacuum tube receivers. Only the wealthy could afford to buy a ready-made multi-tube radio and the batteries and headphones it required—a really good receiver cost (in today’s terms) $1,000 or more. Virtually all early radios were complex to operate, with multiple dials and knobs resembling laboratory instruments rather than consumer devices. They usually required an outdoor wire antenna. By 1922 (the same year the first on-air advertisement was carried by a New York station), radio was becoming a widespread craze across the country as hundreds of stations squeezed on the air using the then available handful of frequencies. They caused considerable excitement as they magically pulled sound out of the air, but they also caused noisy interference and listener frustration. There was almost no government regulation—only a license for the asking and no enforcement power. By mid-decade, presidential addresses or sporting events were being carried on an occasional basis over multi-station link-ups or “chains” of stations. Two exhibits—a series of audio recordings of typical early radio programs, and a display of Radio Boy and Radio Girl children’s novels of 1922-23—help to illustrate just how popular radio was in this exciting era.
Gallery 3: Radio Comes of Age
Our second upstairs gallery highlights important radio developments in the late 1920s. Radio receivers became items of well-designed furniture, often in handsome wooden cabinets. And for the first time they could be plugged in, avoiding the need for cumbersome batteries. They were far easier to tune, too. Loudspeakers (and often phonographs) were built into console radios which soon dominated many of the nation’s living rooms. Helped by these improvements, radio’s audience rapidly grew from 24 to 60 percent of American homes in this brief period—and despite the Depression starting in late 1929. The first permanent national network, NBC, was formed late in 1926 and soon operated two networks (the Red and Blue); CBS followed a year later. Together they soon provided regularity to radio’s scheduling and program types—comedy, drama, variety, music and sports events. Advertisers become increasingly interested in the new medium’s selling potential, and their purchases of air time formed a growing portion of radio’s financial support. Advertisers wanted to know who was listening, and NBC sponsored the first national listener survey in 1928. Regular (though crude) market audience ratings first appeared in 1930. In 1927, Congress passed the Radio Act to form the Federal Radio Commission (FRC) to license and regulate broadcast stations. It was tasked with clearing up the interference on the air, and within a year or two had largely succeeded. In 1934, Congress replaced the FRC with the larger Federal Communications Commission (FCC).
Gallery 4: Radio’s Golden Age
Thanks both to improving technology (such as smaller tubes) and the pressures of the Depression, radios grew smaller and more compact—and less expensive. While most were still in wooden cases, here we see some early plastic cases as well. And a few reflect the art deco movement popular at the time. All the radios in this room are for AM reception, though some feature several shortwave bands. Several innovations are represented in this exhibit, including an early automobile radio, some of the first clock radios, tuning “eyes” in some receivers, and the first wireless remote control—so large you surely won’t lose it in the couch cushions! The Crosley “Reado” is a very rare device from 1939–40. It utilized an early form of facsimile (using different technology than today’s fax machines), intended to receive and print out a morning newspaper. The thought was this would be a more efficient way to distribute papers than by having physical copies delivered to your front door. The experiment failed for several reasons. In addition to being ahead of its time, it was expensive (the receiver cost more than $1000 in today’s values), it did not print graphics or photos well, and it bumped up against the defense buildup of 1940–41 that made consumer electronics products increasingly hard to purchase. The 1930s saw the golden age of network radio (now dubbed old-time radio or OTR, among collectors). Comedy, drama, variety, music and even educational programs filled the broadcast day, most from one of the networks, though large city stations produced many programs. Radio became an accepted means of home entertainment as regular audience surveys made clear. By the late 1930s, network news divisions had formed to help report growing tensions in Europe and the Far East. During World War II, few radios were made and repairs were often difficult to get. But people everywhere listened to radio to obtain the latest war news (radio was so much faster than newspapers) or for entertainment in a tension-filled time.
Gallery 5: Post-War Radio and Vintage Radio Studio Equipment
The radios in this main floor gallery appeared in the late 1940s and into the 1960s as radio began to share audience time and interest with television. The two large glass cabinets display an array of post-war receivers. That on the left presents a selection of post-war plastic (and near plastic) table radios, demonstrating some of the shape and color flexibility radio makers could offer. These were inexpensive AM radio sets using four to six vacuum tubes. Note particularly the light blue coin-operated radio used in hotels—a quarter would pay for an hour of radio time. The right-hand display cabinet tells the story of FM radio, since 1979 the most listened to radio medium. Receivers on the top shelf were made before World War II and are for FM’s original frequencies (42-50 MHz). For a variety of reasons, the FCC shifted FM up to its present channels in 1945, just before lifting the freeze on station construction. By the late 1940s, there were about 700 FM stations across the country and FM seemed the coming thing. But FM stagnated for years in the 1950s as the country and broadcasters fell in love with television. The other large display cabinet shows a number of smaller post-war radios—including one designed to combine a camera and a radio (top shelf). The lower shelves provide a selection of early transistor radios. The first were sold in 1954–55, carried only AM broadcasts, were hard to tune and sounded pretty tinny—but they could fit into your shirt pocket. Thanks to the simultaneous development of rock’n’roll music, these soon became hugely popular among young people. This room currently also has a special exhibit about radio studio equipment, circa the 1950s. Include are items such as microphones, a mixer, turntable, tape deck, wire recorders, and more.
Gallery 6: Rise of Television
Here, in what used to be the living room of Harmel House, you will see examples from the first two decades of television development. In the late 1920s a number of inventors promoted “scanning disc television,” in which the picture was created by light shining through a rapidly spinning metal disc with a spiral set of holes punched into it. An actual 1931 scanning disc television kit made by See-All is displayed next to a demonstration model of the scanning disc television system of Scottish inventor John Logie Baird. Local (Washington, DC) inventor C. Francis Jenkins invented an alternative scanning system utilizing horizontal scanning lines. The See-All receiver and nearly all subsequent television receivers, from to the earliest black and white sets to modern flat panel digital sets utilize horizontal scanning. Next to the See-All is a large wooden receiver made by RCA in 1940. One like it was displayed at the New York World’s Fair. Why is the picture tube mounted vertically? Because early video tubes were very long and if the tube opened to the front of the receiver, it would be even further from the wall. The picture was electronically reversed so it would appear normal when viewed in the mirror. As with most early console television sets, this one included a radio as well. Only the wealthy could afford a receiver like this, made a year before the inception of regular television broadcasting. Another wall displays typical black-and-white television sets of the late 1940s and early 1950s. One small table-top RCA set dates from 1947 and was the most popular post-war set. Its ten-inch screen was typical for the time and the receiver cost about $150 when new (ten times that in today’s dollars). The console receivers that make up the rest of this wall were made in the early 1950s, one of them sold by famed retailer “Mad Man” Muntz who bragged of his low prices. Featured in front of the room’s fireplace is a famous example of television design, the Philco “Predicta” receiver of 1959. Not only did it look different, with the tube separate and mounted on the top, but it featured one of television’s first remote controls (you can see the cable, intended to pass under a room carpet, coiled up behind the receiver). Being able to change channels without actually getting up and going over to the receiver dials was a marvel in its time. Next to the fireplace are two large (and heavy!) receivers that demonstrate a landmark in television—the coming of color.  These are two of the earliest consumer color sets and would have sold for about $1000 in 1954–55 (perhaps six times that in today’s values). Color receivers were not only expensive but they were notoriously difficult to tune. They nearly always required professional installation and a roof-top antenna. You will see several set-top antennas in this room, some of them classic “rabbit ear” antennas to aid in reception of nearby stations. When the receivers in this room were sold and used, cable television was almost unheard of. Most communities had only two or three channels from which to choose—only New York and Los Angeles had seven or eight. Until the mid-1960s, most programming and advertising was televised only in black-and-white. Displayed on the walls are games based on popular television programs of the time.
Gallery 7: Sound Effects, Novelty Radios, and More
The primary display here demonstrates a variety of radio sound effects. In the medium’s earliest days, any sounds had to be created by hand (such as network chimes, horses’ hooves, or an oncoming storm)—by the late 1930s, stations could purchase records with virtually any sound desired. Visitors can try their hand at many of these. Remember that over low-fidelity AM radio, the sounds would seem more realistic than they do to our ears today. Younger visitors especially enjoy the display cabinet showing novelty radios designed to look like something else. A wall display shows the development of electronic parts from the days of vacuum tubes to today’s modern printed circuits. Sound clips of notable moments in radio can be heard through a 1938 Zenith console radio.