GB869567A - Reconnaissance electromagnetic survey pack and method - Google Patents

Reconnaissance electromagnetic survey pack and method

Info

Publication number
GB869567A
GB869567A GB3777457A GB3777457A GB869567A GB 869567 A GB869567 A GB 869567A GB 3777457 A GB3777457 A GB 3777457A GB 3777457 A GB3777457 A GB 3777457A GB 869567 A GB869567 A GB 869567A
Authority
GB
United Kingdom
Prior art keywords
reconnaissance
pack
electromagnetic survey
transistor
transformer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3777457A
Inventor
Anthony Rene Barringer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Selco Exploration Co Ltd
Original Assignee
Selco Exploration Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Selco Exploration Co Ltd filed Critical Selco Exploration Co Ltd
Priority to GB3777457A priority Critical patent/GB869567A/en
Publication of GB869567A publication Critical patent/GB869567A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat

Abstract

869,567. Transistor generating circuits. SELCO EXPLORATION CO. Ltd. Dec. 4, 1957, No. 37774/57. Class 40(6) [Also in Group XXXVI] In a push-pull transistor oscillator the feedback is through transformer 45 connected to the transistor bases. Auto transformer 60 and its parallel condenser constitute the frequency determining circuit.
GB3777457A 1957-12-04 1957-12-04 Reconnaissance electromagnetic survey pack and method Expired GB869567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3777457A GB869567A (en) 1957-12-04 1957-12-04 Reconnaissance electromagnetic survey pack and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3777457A GB869567A (en) 1957-12-04 1957-12-04 Reconnaissance electromagnetic survey pack and method

Publications (1)

Publication Number Publication Date
GB869567A true GB869567A (en) 1961-05-31

Family

ID=10398915

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3777457A Expired GB869567A (en) 1957-12-04 1957-12-04 Reconnaissance electromagnetic survey pack and method

Country Status (1)

Country Link
GB (1) GB869567A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149919A (en) * 1983-11-18 1985-06-19 Charles Norman Smyth Metal detector
GB2165359A (en) * 1984-10-09 1986-04-09 Texaco Development Corp Well logging receiver coil apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149919A (en) * 1983-11-18 1985-06-19 Charles Norman Smyth Metal detector
GB2165359A (en) * 1984-10-09 1986-04-09 Texaco Development Corp Well logging receiver coil apparatus

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