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2. Heathkit - Wikipedia

   en.wikipedia.org/wiki/Heathkit

   1947 Heathkit ad featuring the 5-inch oscilloscope. Oscilloscope OL-1 from 1954, the company's first with a relatively small 3-inch CRT which allowed for a highly competitive price of US$ 29.50 (equivalent to $335 in 2023) for the DIY kit. [1] Heathkit is the brand name of kits and other electronic products produced and marketed by the Heath ...

3. Lafayette Radio Electronics - Wikipedia

   en.wikipedia.org/wiki/Lafayette_Radio_Electronics

   Headquarters. Syosset, New York. Lafayette Radio Electronics Corporation was an American radio and electronics manufacturer and retailer from approximately 1931 to 1981, headquartered in Syosset, New York, a Long Island suburb of New York City. The company sold radio sets, Amateur radio (Ham) equipment, citizens band (CB) radios and related ...

4. Heathkit H11 - Wikipedia

   en.wikipedia.org/wiki/Heathkit_H11

   The Heathkit H11 Computer is an early kit-format personal computer introduced in 1978. It is essentially a Digital Equipment PDP-11 in a small-form-factor case, designed by Heathkit . The H11 is one of the first 16-bit personal computers , at a list price of US$1,295, [ 2 ] (equivalent to $6,050 in 2023) but it also requires at least a computer ...

5. Shortwave radio - Wikipedia

   en.wikipedia.org/wiki/Shortwave_radio

   Grundig Satellit 400 solid-state, digital shortwave receiver, c. 1986 [1]. Shortwave radio is radio transmission using radio frequencies in the shortwave bands (SW). There is no official definition of the band range, but it always includes all of the high frequency band (HF), which extends from 3 to 30 MHz (100 (exactly 99.930819333) to 10 (exactly 9.9930819333) meters); above the medium ...

6. Shortwave bands - Wikipedia

   en.wikipedia.org/wiki/Shortwave_bands

   Shortwave bands are frequency allocations for use within the shortwave radio spectrum (the upper medium frequency [MF] band and all of the high frequency [HF] band). Radio waves in these frequency ranges can be used for very long distance (transcontinental) communication because they can reflect off layers of charged particles in the ionosphere and return to Earth beyond the horizon, a ...

7. Heathkit H8 - Wikipedia

   en.wikipedia.org/wiki/Heathkit_H8

   Heathkit 's H8 is an Intel 8080A -based microcomputer sold in kit form starting in 1977. The H8 is similar to the S-100 bus computers of the era, and like those machines is often used with the CP/M operating system on floppy disk . The main difference between the H8 and S-100 machines is the bus; the H8 uses a 50-pin bus design that was smaller ...