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My Vintage Radios
and other articles, projects and essays
told as historical and biographical stories for my amusement and your entertainment
by John L. Fuhring

Beautiful antique radios I restored.

My Crosley 817 after 50 years of hiding

My 1936 "King's Speech" Radio

A very rare 1936 Troy Radio

Summer of '42 Philco Portable radio

A very rare Farnsworth 1942 portable radio

My restored Hallicrafter radios.

A World War Two GI's shortwave radio

Captain Allan Hancock's EC-1b
From the junk pile of the Hancock Flying Field

My redesigned S-38b radio
Rebuilt as a kit.

My improved S-120 radio
Finally working right after only 50 years

Radios I have restored for others

The first practical transistor radio

My homebrewed  and crystal radios.

My first amplified radio
An Armstrong regnerative radio I built in 1958
and updated for better performance.

My Magnum Opus Homebrewed Radio
A transceiver for the amateur radio bands.

A high performance crystal radio
Excellent performance from an unamplified radio.

A high performance crystal radio kit
designed as a project for science students

My Regenerative Shortwave Radio Project
A shortwave radio based on Armstrong's
regenerative principle.

A homemade broadcast band transmitter
So you will have something decent to listen to.

An Armstrong "Crystal" Radio
From "The Old Geezer Electrician"
A recent update of my first amplified radio from 1958

Another Armstrong regenerative radio
A nicer looking version of the Geezerola and
made to resemble the first commercial regenerative radio, the 1921 Aeriola Senior.

Essays on basic radio design & safety.

Basic elements of the superheterodyne radio
One of Armstrong's most enduring inventions.

An essay on the first practical radio
and notes on detectors used in later radios.

An essay on Hot Chassis radio safety
A very important warning and detailed instructions on how to make All American Five (AA5) radios safe to work on and to use.  AA5 radios should not be plugged in until made safe.

An essay on Shackleton's missing radio gear
and a description of a typical receiver and transmitter of the era.

An essay on radio technology circa 1914

Great Milestones in Electronic Technology:

A German company, Telefunken, manufactured the first robocops in 1921.
Relying on early vacuum tube technology, they were not very successful.
The delicate glass triode tubes were easily damaged in violent
confrontations with the period's supervillains.  By the end
of the decade, all robocops were decommissioned thus
enabling the infamous criminal take-over of Germany
and the horrific aftermath that still haunts the world.

Arms manufacturer Lockheed's famous 1988 model robocop.
Practical robocops of today use solid state electronics and,
ruggedized, are more than a match for today's supervillains.

An early model "Attention Getting Device" from 1923.
Attention getting devices have been used by school children for
hundreds of years, but were never very effective until the first good
triode amplifier tubes became available after 1920.  Today all attention getting
devices use transistors and integrated circuits and are microprocessor controlled.

Circa 1978, I get my homebrewed radio working and on the air.
It had several serious bugs, but in 2011 and again in 2014, each circuit was evaluated and many were
reworked for better stability and better performance.  It still uses valves (tubes) as shown,
but is now digitally synthesized and drift free.

First semi-driverless vehicle circa 1970.
This car was decades ahead of its time with semi-intelligent
steering, homing and crash avoidance.  The energy source
is "green" (grass) and entirely renewable.  It was later found that
some of the emissions are powerful greenhouse gases.

More articles soon

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Radio catalog: more than 269 669 radios with 692 043 schematics, 1 750 263 pictures plus radio forum.