Fisher Research Laboratory

Fisher Research Laboratory was located at 1961 University Avenue in Palo Alto, California in 1949. The company was established by Gerhard R. Fisher in 1923 to produce metal detectors and other geophysical instruments.

Fisher Research Laboratory 1950's

Fisher Research Laboratory 1955

Fisher Research Laboratory 1956

Signature of Gerhard R. Fisher 1953

Fisher introduced the Model C-11 M-Scope in 1949. It was a box type unit with a 36-inch probe for prospecting. It used three 45-volt batteries and two flashlight batteries for the filament. It had a meter, a flashing neon light and headphones.

Fisher Model C-11 with Walking Stick 1949

Fisher introduced the Models C-12 and C-15 in 1950. The units are equipped with headphones, flash indicator and high and low range rate meters with 0-0.2 and 0-20 mR/h. The Model C-12 is equipped with an adjustable shield to allow exclusion of betas. The Model C-15 is equipped with a GM tube installed in a separate prospecting stick 36” long. This arrangement permits exploration of crevices and tunnels. The weight of the unit is 5 lbs., and the stick weighs 1 lb. The unit sold for $135 in 1951. The Models C-12A and C-15A are the same except that they only use headphones. In 1953, the Model C-12 sold for $125. It came in a wooden case with a hinged top. The unit measured 5” x 9.5” x 9.5”.

Need photo

Fisher M-Scope late 1940’s

Popular Science Ad 1949

Fisher Model C-12 M-Scope Ad 1949

The Model C-12 was a portable, lightweight geiger counter for prospecting. It has a sensitive headphone, a neon signal flasher and an intensity meter. It has a high voltage supply thus eliminating the need for high voltage batteries. It sold for $125 in 1951.

Fisher Model C-12 (left) and C-15 (right) 1950

The Model C-15 had the C-12 base unit with a 36” prospecting stick. The aluminum walking stick was designed to avoid continuous stooping while prospecting. The prospecting stick was advertised as “practically essential in snake infested country”. The scale read 0-100 in arbitrary units. It sold for $135 in 1953.

Fisher M-Scope Enhanced Model C-12 1952

Fisher M-Scope Ad 1953

Fisher Model C-12 M-Scope Ad 1953

Fisher Model C-12 1953

Fisher Model C-15 M-Scope 1950

Fisher M-Scope with Probe Model C-15 1953

Fisher Ads with Model C-12 M-Scope 1950's

Fisher Model C-12 M-Scope Geiger Counter Ads 1952

Fisher Ad with Model C-12, C-16 and C-18 1954

The C-16 Geiger counter was offered in 1954. It had a detachable probe and sold for $120.

The Model C-16B was offered in 1955 for $120.

Fisher Model C-16B 1955

The M-Scope Model C-18 geiger counter was introduced in 1950. It was advertised as a “Modern Instrument for Modern Prospecting”. The unit was advertised to fit in your coat pocket. The unit comes complete with a radioactive ore sample for comparison tests. The unit measured 5” x 4” x 1.5” and weighed 1.5 lbs. The unit was designed for radioactive mineral prospecting and sold for $35.00 in 1951.

Popular Science Model C-18 M-Scope Ad 1949

Fisher M-Scope Model C-18 1952

Fisher Ad with Model C-18 M-Scope 1950's

Fisher Ad with Model C-15 and C-18 M-Scope 1953

The “Uranium Scout” Model S was offered for $99.50 in 1955. It later sold for $56.50 in 1956. It contained two internal GM tubes and measured 4.25” x 4.25” x 7-5/8” and weighed 4.75 lbs. It used 45 and 67.5- volt batteries. It has three ranges of 0.12, 1.2 and 12 mR/h. It has a calibration control for field checks on sensitivity. The unit has headphones but no neon flasher.

Fisher Uranium Scout Model S 1955

The “Uranium Scout De Luxe” Model T sold for $139.50 in 1955. It has ranges of x1, x10 and x100 which gave a range of 500, 5,000 and 50,000 cpm or also 1, 10 and 100 percent ore concentration. The unit measured 4” x 7.5” x 4.5” and weighed 5.5 lbs. It has an option of a drill hole probe and cable in 100, 250 and 500-foot lengths. A regular probe is standard or an optional directional gun-type probe with two geiger tubes for $189. It came with a small radiation source attached to back of the unit in a plastic case. The unit could also be purchased with an optional “prospecting stick” to reach into inaccessible areas. The developer claims it could even be used from horseback.

Fisher Uranium Scout De Luxe Model T 1955

Fisher Ad for Geiger and Scintillation Counters 1955

Fisher Price List Clearance Sale for Geiger and Scintillation Counters 1955

Fisher Model T with Prospecting Stick 1955

The Fisher Count-O-Scope is a combination geiger counter and four-digit scaler. This feature greatly simplifies prospecting for the amateur user. It was an ideal unit for accurate grid surveys and radiometric surveys. It has a sensitive two range rate meter. It weighs 10.5 lbs. and comes in a deluxe mahogany carrying case. The unit sold for $465 in 1955.

Fisher Count-O-Scope 1955

Fisher Count-O-Scope Ad 1955

Fisher offered the “Scintilla-Dyne” in 1955. It was a scintillation counter with a 1” x 1” sodium iodide crystal. It has three sensitivity ranges. The crystal is hermetically sealed with a magnesium oxide reflector. It sold for $249.50 with an optional payment plan in 1955. In 1956, it sold for $165.

Fisher Scintilla-Dyne 1955

Fisher Scintilla-Dyne 1950's

Fisher Scintilla-Dyne Ad 1955

Fisher Scintilla-Dyne 1955

Fisher Scintilla-Scope and Scintilla-Dyne Ad 1956

The Fisher “Scintilla-Scope” was introduced in 1955 as a scintillation counter for uranium prospectors. It was advertised as the “Cadillac” of its field. It had a special radiometric assay ore calibration scale. It has five ranges and three response speeds. The detector was a 1.5” x 1” sodium iodide crystal. It weighs 6.5 lbs and comes with a “de luxe mahogany” carrying case. It sold for $487.50 in 1955.

Fisher Scintilla-Scope 1955

Fisher Type V Scintilla-Scope

Fisher Scintilla-Scope 1953

Fisher Ad New Instruments in 1955

The Scintilla-Scope could also be obtained with a gun-type probe in 1955 for $555. The detector was a 1” x 1” sodium iodide crystal. A 1.5” x 1” crystal in a gun type probe could be obtained for $640.

Fisher Scintilla-Scope (left) and in case (right) 1955

Fisher Price List 1955

A few more ad from the 1950's

Fisher Ad as distributor of Precision Radiation Instruments scintillation detectors 1950's