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Contents of journal 23
March 1996
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CREG Journal Archive:
This issue is available on paper as part of a two-volume archive,
covering issues 1 to 25.
To purchase it, please visit
Lulu.com.
- CREG Journal
(PDF 7.9MB)
  Individual articles may be available below
- Contents. (This is a bit-map scan).
-
- Update - Type Approval of Modules
- David Gibson reports on the latest from the Radiocommunications Agency.
-
- Literature Received
- The Design of Broadband VLF Receivers, an Italian article on bat detectors and a French article about an electronic clinometer with laser pointer.
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- The Autumn Field Meeting
- A report by Guy Tomlinson.
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- Review - Underground Photographer
- Mike Bedford reviews our publication on cave photography.
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- Electronic Aids for Photographers
- David Gibson reports on a discussion held at the Autumn 95 CREG field meeting.
-
- An Improved Circuit for Firing Flashbulbs
- David Gibson's design allows slaves to be used more reliably with flashbulbs, and provides an indication that the flashbulb is correctly seated.
-
- The Mogannwg Lamp
- Practical design for a low-cost lamp by Kevin Munn.
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- Cave Radio Design - 27kHz FM
- Constructional details of a 27kHz FM cave radio by Stuart France.
-
- Radio in a Box
- Kym ap Rhys describes experiments with professional VHF hand-helds underground.
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- A Slave for RALF: part 2
- Some further notes on construction, by David Gibson.
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- Optimal Charging of NiCd Cells
- Mike Bedford investigates fast charging of NiCds and outlines the concept of optimal charging.
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- Earth Current / Induction Field Experiments part 4
- Rob Gill describes work with circular polarisation.
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- Cheap LED Emergency Flashlight
- Brian Pease describes how high-brightness LEDs can be used for illumination. Mike Bedford lists some UK sources.
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- Design Considerations for Caver Pagers
- Chris Trayner describes the concept of caver pagers.
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- Progress on Caver Pagers
- Chris Trayner introduces four projects on caver pagers. The students then outline their progress to date.
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- The G3TDZ Loop
- Following construction details of the transceiver in the last Journal, John Hey gives loop details.
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- 3496Hz Beacon Transmitter & Loop
- Brian Pease provides constructional details of a 3496kHz beacon for radio location.
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- Electronics in Cave Surveying
- David Gibson reviews the uses of electronic instrumentation for surveying and navigation in caves.
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- Review: Electronic Compass Modules
- David Gibson lists a range of components and modules useful for the design of electronic compass / clinometers.
-
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the British Caving Association,
undertaking charitable activities on behalf of the BCA.
BCRA publishes a range of periodicals and books.
Click here for further information.
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