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BC-348:
6 Band LW,SW Receiver. Coverage is continuous from 200khz to 500khz & 1.5mhz to 18mhz, only the AM broadcast band is missing. This WWII vintage receiver was from a B-17 bomber. This unit has been modified with a 110vac power supply, crystal calibrator, and ANL
All tubes are still original metal envelope tubes and all caps are oil filled. Unit is in perfect working order. This unit is as rugged as they come.
Made in U.S.A
Schematics: (left click to enlarge, then right click to save)
Zenith TransOceanic (Transistor) Classic 1962 Royal 1000D:
9 Band LW,MW,SW Receiver. Coverage is almost continuous from 150khz to 22mhz. The LW,MW antenna is a "Wavemagnet" mounted on top of the Radio. An external "Wavemagnet" was provided to improve reception. SW antenna is a telescopic whip concealed inside the carrying handle. The handle unlatches from the left side, tips into a vertical position where the whip can be extended. Case and chassis are all metal construction which provides great shielding and stability, the negative side being great weight (13 lbs). Made in U.S.A (Chicago, IL)
Schematics:
Open front view of the Royal 1000D:
Bands are selected using a rotating drum mechanism designed to select and display one band at a time. (This system was copied by many manufactures). The drum has an internal backlight for night viewing and operates from a single D cell.
Inside view of the Royal 1000D.
9 germanium BJT PnP transistors all in sockets. Gear reduction 3 gang air-tunning capacitor and multistage IF tuning for all bands. The battery pack (not shown) fits in the lower right side and contains 9 D cells (1 for the backlight). Original Dry-Cell batteries were rated at 300hours of operation. New Alkaline batteries should last X2 or X3 times that long. This radio does not have provision for AC operation (there really is no need when the batteries will last years).
Transistors: Germanium PnP type
RF= 121-44, OSC= 121-48, MIXER=121-49, 1stIF=121-180,2ndIF=121-181, 1stAudio=121-64, Driver=121-46, Amp=(2) 121-47
121-44 = NTE126, 121-48 = NTE160, 121-49 = NTE160, 121-180 = NTE160, 121-181 = NTE160, 121-64 = NTE102A, 121-46=NTE102A, 121-47 = NTE102A
Note: The Point Contact Transistor was invented by Bell Labs in 1947 but wasnt produced until 1948. The Bipolar Junction Transistor (BJT) was invented in 1949 by Bell Labs but wasnt produced until 1951. The first Silicon BJT was invented by Bell labs, but it took Texas Instruments to figure out how to produce it in 1954.
The very first transistor radio sold was in 1954 and the first Royal 1000 was sold in 1957.
Classic 1958 TO A600.
7 Band MW,SW Receiver. Coverage is almost continuous from 550khz to 18mhz. The MW antenna is a "Wavemagnet" mounted on top of the Radio. An external "Wavemagnet" was provided to improve reception. SW antenna is a telescopic whip concealed inside the case. The case is wood with a cloth covering. Most of the size of the radio is due to the high voltage battery required to operate a tube radio. A clever retractable 110vac line cord on the side allows for either mains or battery operation. Made in U.S.A (Chicago, IL)
Philco Console Classic 1942 Radio/phonegraph
2 Band MW,SW Receiver. MW band has extended range to cover into the Police band (of the day) and goes upto the 160m band. The SW band covers just below 9mhz to just above 15mhz. Both bands use a large built in loop antenna on the inside of the cabinet and can be rotated +/- 45deg. Unit has a combination of standard and loctal style tubes.
Behind the front grill is a phonograph that uses a needle that transmits the audio back to the amplifier via a light beam.
Made in U.S.A (Chicago, IL)
