BOOK - How to build your own metal and treasure locators by F.G.Rayer

[joop]

Another book from the seventies, a first print from 1976, this time from the UK. Cover here --->
No surpise, all detectors in this book are simple BFO types which operate at about 300-500 kHz. Here's the contents table:

Introduction..................................7

PART I PRINCIPLES AND CONSTRUCTION

Non-Interference..............................8
Stability....................................9
Regulatory Department, SensibIe Use..................9
Production of Hetrodyne.........................I0
Hetrodyne Locator.............................I2
MetaI Finding................................l3
PracticaI Circuits and Construction....................15
Soldering...................................16
Transistor Leads..............................17
Reference OsciIIator............................I7
Testing and Fault tracing.........................22
Search Coil Oscillator............................27
Coil...................30
Testing.......................31
Handle....................................32
Hetrodyne Detector............................33
Audio AmpIifier...........................34
Completed Locator............................37
Pitch ControI................................38
Locato rUse................................39

PART II ALTERNATIVE COILS, DETECTORS, AMPLIFIERS

Frequency Stability.........................43
Broadcast and Wound Coils........................45
Air-Cored CoiIs..............................47
SEARCH COIL ASSEMBLIES
Shielded Coil................................53
Two-Terminal Coil............................55
Square Coil.................................57
Basket Coil..................................59
Underwater Coil..............................60
ALTERNATIVE DETECTORS
Transistor Detector.............................62
Detector Faults..............................65
AUDIOAMPLIFIERS
Headphone AmpIifier..........................66
Two-Stage Amplifier............................69
Three-Stage Amplifier...........................71
lC AmpIifier.................................73

PART III CONSTRUCTIONAL AND OTHER POINTS

Search Coils and Handle......................... 77
Case........................78
Very High-C Loop..........................78
450—470 kHz Working..........................80
Oscillator Stabilisation..........................82
Kind of Metal..............................83
3-TRANSISTOR LOCATOR
Search Coil...................................83
Coil L2 Circuit and Tag-board......................86
Alternative Coil...............................87
Case..............................88

[Qiaozhi]

Another book from the seventies, a first print from 1976, this time from the UK. Cover here ---> [ATTACH]30850[/ATTACH]
No surpise, all detectors in this book are simple BFO types which operate at about 300-500 kHz.

Yes, I have that one as well!

If you're into collecting metal detector books, then here's a few to consider:

1. The Complete VLF-TR Metal Detector Handbook (All about ground cancelling metal detectors) by Roy Lagal and Charles Garrett
2. Building Metal Locators - A Treasure Hunter's Project Book by Charles D. Rakes
3. How to Build Proximity Detectors & Metal Detectors by John Potter Shields
4. The Electronic Metal Detector Handbook by E. S. LeGaye
5. Ortungstechnik fur profis by Wolfgang Schuler (in German)
6. The Advanced Handbook of Modern Metal Detectors by Charles L. Garrett
7. Seeing Beneath the Soil (prospecting methods in archaeology) by Anthony Clark
8. Signal From the Subatomic World (How to Build a Proton Precession Magnetometer) by Stefan Hollos and Richard Hollos
9. Teoria e Tecnica Avanzata del Metal Detecting by Leonardo Ciocca (in Italian)
10. The Magnetic Measurements Handbook by J. M. Janicke
11. Das Kompendium Der Metall Detektoren (Theorie - Planung - Praxis) by Rolf Wilhelm - Elektor Verlag

I've heard there are some good Russian books as well, but I don't have any of those.

[joop]

Great list! I have 1, 5 and 6 also and own one which is not on your list: Schatsuche mit Metalldetectoren by A. Gatowski. Will write a short review about this book later this week!