BOOK - How to build Metal/Treasure Locators by Robert&John Traster

[joop]

Bought this book very cheap on ebay, it is a first edition from 1977. All projects on this book are BFO types, from a one transistor detector combined with a radio to a more sophisticated transmitter - receiver detector with 2 separated coils a few feet apart. The book also describes operation of the Heathkit GD-348 Deluxe Metal Locator....

Picture of the cover here:

Contents:

1 The Essentials
Workbench—Reading Schematic Diagrams—General Instructions

2 An Economical Metal Detector for the Beginner
Parts—Assembly Instructions—Testing—Operation

3 Economy Model No. 2
Parts-Assembly Instructions—Testing—Operation

4 Self - Contained Detector
Parts—Assembly Instructions-Testing

5 Miscellaneous Detector Circuits
Substitute Components—Another Detector Using a Portable
Radio—Metal Detector Meter Circuit—Another Self-
Contained Detector-A Sensitive Detector-Another Detec-
tor Using A Meter

6 Building Metal Detectors From Kits
Heathkit

7 Repairs and Maintenance of Equipment
Problems-(1) No Speaker Volume or Sound-(2) Poor
Sensitiviy or Detection Capability—(3) Excessive Frequency
Shifting or Instability—(4) Erratic Operation—(5) Erratic-
Sounding Speaker—Using Test Equipment for
Troubleshooting

8 How and Where to Use Your Detector
Tuning Procedures-Field Operation-Digging Your Find-
Choosing an Area

Appendices
A List of Equipment Dealers

B Selected Publications

C An Advanced Project

[joop]

Hmmmm, the authors are called Traister, not Traster. Sorry about the typo.

[Qiaozhi]

Bought this book very cheap on ebay, it is a first edition from 1977. All projects on this book are BFO types, from a one transistor detector combined with a radio to a more sophisticated transmitter - receiver detector with 2 separated coils a few feet apart. The book also describes operation of the Heathkit GD-348 Deluxe Metal Locator....

I have a copy of this book in very nice condition, but without the paper jacket. I'd forgotten about the description of the Heathkit GD-348, but I also one of those detectors. Maybe it was good in its day, but now it's totally hopeless in comparison with even the worst cheap Chinese import.

[joop]

True... If you go through this book it comes as a surprise how simple projects were in 1977 compared to nowadays.