SaparotRob
Unter Gemeine Geschwader Murmeltier XIII
I haven't heard the term "linear" in a long time. They were fabled talismans of power.
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As I recall, it was about a foot square, six inches deep. He had it under his driver's seat. He traveled a lot summers in college for work, so it kept him entertained. Was "linear" the brand name, or a description?I haven't heard the term "linear" in a long time. They were fabled talismans of power.
And illegal AF on 11 meters (CB frequencies)...I heard of that. My friends made it sound like the Holy Grail.
Was "linear" the brand name, or a description?
In the early days of radio, "linear" was the holy grail of amplifier and transmitter design, as primitive early circuits were decidedly non-linear in their amplification characteristics. Most all behaviors in electronics tend to follow exponential, rather than linear patterns, so it took a lot of coaxing to get an amplifier or a transmitter to put out the same level of gain across its full tunable spectrum. One of my uncles was a WWII Navy Radio/Radarman who took up collecting and resurrecting antique radios postwar. He had some doozies from the twenties and thirties that had to have each stage independently tuned and constantly drifted off frequency, making for constant knob twisting. Too frustrating for me, but he had a grand old time with them.Linear is the device's function: " linear amplifier".
Oh my aching harmonics! Betcha you guys were reverberating up and down the spectrum. My great uncle had a 10K watt ex military transmitter in his ham station that he tried to keep reigned in to 1/100th of its rated power, and it squirted harmonics all over town. His neighbors found it amusing to eavesdrop on his conversations over their radios and TVs. Small town America....I worked at a 50,000-watt, clear-channel AM radio station in Spokane, WA, KGA, 1510. It had a detuned 100,000-watt ex-military transmitter. You could walk inside it. The tubes were the size of turkey-frying kettles.
We were still doing amplifier and time base linearity checks on ultrasonic sets up until they went digital, but I think it was a throwback to when the tech. first started commercially in the 1950s to 60s. I never saw a set fail and if one did there was no scope to do anything except send it back.In the early days of radio, "linear" was the holy grail of amplifier and transmitter design, as primitive early circuits were decidedly non-linear in their amplification characteristics. Most all behaviors in electronics tend to follow exponential, rather than linear patterns, so it took a lot of coaxing to get an amplifier or a transmitter to put out the same level of gain across its full tunable spectrum. One of my uncles was a WWII Navy Radio/Radarman who took up collecting and resurrecting antique radios postwar. He had some doozies from the twenties and thirties that had to have each stage independently tuned and constantly drifted off frequency, making for constant knob twisting. Too frustrating for me, but he had a grand old time with them.
I do know that the 50kw radio station's surrounding residential neighbors would call or write in complaining that they could hear the radio broadcast coming from a chain link fence, or toaster, whatever. A subsequent broadcasting employer who had a 10,000 watt am transmitter had all kinds of issues with leaking RF all over the building. It would raise hell with the computer system that ran the automated FM sister station in the same building. Good times!!!Oh my aching harmonics! Betcha you guys were reverberating up and down the spectrum. My great uncle had a 10K watt ex military transmitter in his ham station that he tried to keep reigned in to 1/100th of its rated power, and it squirted harmonics all over town. His neighbors found it amusing to eavesdrop on his conversations over their radios and TVs. Small town America....
The NDB station for the local airport's ILS outer marker was adapted from an ancient LF four-legged radio range, and had four of those "turkey fryer" tubes dating back to 1936. When one of them finally burned out and there were no replacements in existence, the FAA was at last forced to upgrade the station. The original transmitter is in a museum somewhere.
My college dorm room was less than 100 yards from a 1200 watt AM station's broadcast antenna. Every time I picked up my record player's tone arm, WJOY would come blasting through the speaker.the 50kw radio station's surrounding residential neighbors would call or write in complaining that they could hear the radio broadcast coming from a chain link fence, or toaster, whatever.
My Brother was 82nd AB, A Shau Valley, 68/69My Username simply shows that I earned and "stacked" my US Army Special Skill Badges while on Active Duty. Airborne 1968 and Air Assault in 1989.
Welcome aboard, Sir.My Username simply shows that I earned and "stacked" my US Army Special Skill Badges while on Active Duty. Airborne 1968 and Air Assault in 1989.