Crystal Radio
stay tuned crystal radio and tube radio website
crystal set



Crystal Radio Plans and Circuits
and parts of books
This section contains 174 articles at the present time
(articles are numbered)
Many articles have multiple plans!



Information Donated In Part By The Following Persons
Mike Tuggle (Hawaii), Richard O'Neill, Lou Blasco, Mike Peebles, Andy Klute, Evan Haydon,
David Porter, Kent Stevens, Harlan Higman and his Father,  Steve Myers,  Ben Tongue,
Brian Hawes (England), Lincoln Rivas (Chile, South America), Phil Vanheurck,  Brian Butler (Canada)
Andre Frechette VE2FAB, Terry Hicks, Rod Wall (Australia), Kenneth Ladd

We thank you for sharing your radio plans!!!

If you have any plans to share, please email me.
Email address at bottom of page

"New" Plans Just Added Section
Click Here

Spanish Language Plans
Esquemas en lengua espaņola
Click Here



Department of Commerce,
Bureau of Standards
Circulars

#1

Department of Commerce,
Bureau of Standards  Circular #120

"Construction And Operation Of A Very Simple
Radio Receiving Equipment"

(158k file) "pdf" format 

Courtesy of Lou Blasco
 

Lower quality, but here if you have to have "doc" files
#120    (892k file) "doc" format



#2
Department of Commerce,
Bureau of Standards Circular #121

"Construction And Operation Of A
Two-Circuit Radio Receiving
Equipment With Crystal
Detector"

(98k  file) "pdf" format 
Courtesy of Lou Blasco
 

Lower quality, but here if you have to have "doc" files
#121  (757k file) "doc" format



#3
Department of Commerce,
Bureau of Standards Circular #133

"Description And Operation Of An
Electron-Tube Detector Unit For
Simple Radio Receiving Outfits"


Page 1
Page 3
Page 4
Page 4b
Page 5
Page 6 
Page 7
Page 8
Page 9
Page 10
Page 11
Page 12
Page 13
Page 14
Page 15
Page 16
Page 17
Page 18
Page 19
Page 20
Page 21
     
(page 2 is a blank page)

Courtesy of Steve Myers



#4
Department of Commerce,
Bureau of Standards Circular #137

"Auxiliary Condensers And Loading
Coil Used With Simple Homemade
Radio Receiving Qutfits"


Page 1
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8
Page 9
Page 10
Page 11
Page 12
Page 13
Page 14
Page 15
Page 16
Page 17
Page 18
Page 19
   
(page 2 is a blank page)

Courtesy of Steve Myers



#5
Department of Commerce,
Bureau of Standards Circular #141

"Description And Operation
Of An Audio-Frequency Amplifier Unit For
Simple Radio Receiving Outfits" 


Page 1
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8
Page 9
Page 10
Page 11
Page 12
Page 13
Page 14
Page 15
Page 16
Page 17
Page 18
 
Page2 (missed) 
 
(page 2 is a blank page)

Courtesy of Steve Myers
 

#6

Farm Economy Supplement
Published early 20's
This radio is almost the same as #120 above,
but more detail and upgradable to a tube radio

Title Page


page33
page34
page35
page36
page37
page38
page39
page40
page41
page42
 

 

#7

Construction and Operation of a Simple Homemade Radio Recieving Outfit

This radio is almost the same as above
"Department of Commerce, Bureau of Standards Circulars"
PDF Format

#8

The Boy Electrician
(1. 5 meg in DOC format)  


 
9

Allied Knight-kit
This is an excellent project for a beginner to build
(837k)

 

#10

How to Build An Efficient Crystal Receiver

How to Build An Efficient Crystal Receiver Page1

How to Build An Efficient Crystal Receiver Page2

How to Build An Efficient Crystal Receiver Page3

How to Build An Efficient Crystal Receiver Page4

How to Build An Efficient Crystal Receiver Page5



 
#11

Building An Elementary Receiver


Page 1 Page 2 Page 3 Page 4
Page 5 Page 6 Page 7 Page 8
Page 9 Page 10 Page 11 Page 12
Page 13 Page 14 Page 15 Page 16
Page 17 Page 18 Page 19 Page 20
Page 21 Page 22 Page 23 Page 24
Page 25 Page 26 Page 27
 
 #12

Duel Rectification With Crystals Page 1

Duel Rectification With Crystals Page 2
 
#3

The Flextal Crystal Set

Removed , Sorry

 

#14

Foxhole Emergency Radios Page 1

Foxhole Emergency Radios Page 2



#15

Heathkit CR1
 
#16

Simple Improved Crystal Set Page 1

Simple Improved Crystal Set Page 1
 
#17

A Match Box Radio That Actually Works
 
#18

"Loud" Crystal Radio
 
#19

3 Miller Drawings Page 1
3 Miller Drawings Page 2
3 Miller Drawings Page 3


0
My Crystal Set That Gets DX

Page 1

#21
Wide Range Bandpass
Crystal Tuner

Page 1  Page 2

 

#22
A Conelrad Monitor

Page 1

 

#23
Channel Tuned
Crystal Receiver

Page 1  Page 2

 

#24
How I Invented The
Crystal Detector

Page 1   Page 2

 

#25
Assymbling A Simple Crystal Set

Page 1  Page 2

 

#26
A Modern Crystal Set

Page 1

 

#27
Link_Coupled Crystal Set

Page 1  Page 2

 

#28
The Crystal Radio
Makes a Come-Back

Page 1  Page 2

 

#29
A Modern Midget Set

Page 1  Page 2

 

#30
Modern Crystal Set

Page 1

 

#31
A Super Selective
Crystal Receiver

Page 1

 

#32
A Super Sensitive
All-Wave Crystal Set

Page 1   Page 2

 

#33
Germanium Crystal Receivers
Pick-Up European Broadcasts

Page 1  Page 2

 

#34
High-Efficiency Crystal Receiver

Page 1

 

#35
DX Crystal Radio Receiver

Page 1  Page 2

 

#36
Selective, Fixed Detector Crystal Set

Page 1  Page 2

 

#37
The Crystal Detector

Page 1  Page 2   Page 3    Page 4

 

#38
Tuggle Notes

Page 1   Page 2    Page 3

 

#39
Two Timer

Page 1    Page 2

 

#40
When Tubes Beat Crystals: Early Radio Detectors


Page 1
Page 2
Page 3
Page 4
Page 5
Page 6

 

#41
A Modern Crystal Set

Page 1   Page 2    Page 3

 

#42
Oat Box Crystal Radio Set

Page 1    Page 2

Version#2
Page 1    Page 2    Page 3

 

#43
Pencil Crystal Radio
JPG File
Page 1

 

#44 
Harlan Higman and his Fathers Radios


Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8
Page 9
Page 10
Page 11
Page 12
Page 13
Page 14
Page 15
Page 16
Page 17
Page 18
Page 19
Page 20
Page 21
   

 

#45
Fountain Pen Radio
JPG File
Page 1

 

#46
Make The Parts For
These Crystal Sets
JPG Files
Page 1   Page 2

 

#47
Loop Crystal Set
JPG Files
Page 1    Page 2

 

#48
"Tom Thumb" Crystal Set
JPG Files
Page 1

 

#49
Two Low-Cost Crystal Sets
JPG Files
Page 1   Page 2

 

#50
Powerful Crystal Set
#1
This is not the same set as Powerful Crystal Set #2 below
It's claim is it is so powerful it will heat up the crystal on local stations! (OK?)
JPG File(s)
Page 1    Page 2

 

#51
A "P.W." Ultra Crystal Set
Donated by Brian Hawes

JPG File(s)
Page 1   Page 2    Page 3

 

#52
Three Germanium Diode
Crystal Receivers For Beginners

JPG File(s)
Page 1   Page 2

 

#53
Build A Modern Crystal Set


Page 1
Page 2
Page 3
Page 4
Page 5
#54
Tapped Coil Crystal Set
"Allied Radio Kit"

JPG File(s)
Page 1   Page 2    Page 3
 

#55
Tapped - Coil Crystal Receiver 
and Battery - Operated Amplifier

JPG File(s)
Page 1   Page 2   Page 3
 

#123
The last word in
Crystal Sets
....the first word in radio
JPG File(s)
Page 1   Page 2    Page 3 Page 4

added 12 Dec 04

#124
Small Fry Crystal Set
JPG File(s)
Page 1

added 12 Dec 04

#125
A Crystal Set for the Boy Builder
JPG File(s)
Page 1   Page 2    Page 3

added 12 Dec 04

#126
How To Build A Loud Speaker Crystal Receiver
JPG File(s)


Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8

added 5 Jan 04

#127
How To Build A Long Distance Crystal Radio Set
JPG File(s)

Page 1     Page 2      Page 3     Page 4

These images are a little hard to read, but not bad.
From 1923 by Leon Lambert
They were scanned a little higher resolution to help.

 

#128
Building A Crystal Set For The Children
JPG File(s)
Page 1

added 24 Jan 04

#129
Classic Crystal
JPG File(s)
Page 1    Page 2

added 24 Jan 04

#130
Crystal Detectors And How They Work
JPG File(s)
Page 1    Page 2     Page 3

added 24 Jan 04

#131
Grandpa's Wisker
JPG File(s)
Page 1    Page 2     Page 3    Page 4

added 24 Jan 04

#132
Build The See-Through Crystal Radio Receiver
JPG File(s)
Page 1   Page 2

added 24 Jan 04

#133
Glass-Jar Crystal Receiver
JPG File(s)
Page 1

Donated by Brian Butler
Original image has been altered slightly to remove "noise" in the image.
This makes the image smaller and load faster. 

added 24 Jan 04

#134
Tapped Coil Crystal Radio

JPG File(s)
Page 1    Page 2     Page 3    Page 4   Page 5

added 31 Jan 04

#135
Halyard's "Worth-while" Crystal Set
The Coil Is Wound In The Legs Of A Table!
Combo Table Radio!
JPG File(s)
Page 1    Page 1a    Page 2   Page 3   Page 4
(Page 1a is the bottom of Page 1)

Donated by Brian Hawes
added 8 Feb 04

#136
Inductively Coupled Crystal Receiving Set

JPG File(s)


Page 1
Page 2
Page 3
Page 4
Page 5
Page 6 
Page 7
Page 8
Page 9
     

Donated by Brian Butler
Added 8 Feb 04

#137
Crystal-Type Broadcast Receiver

JPG File(s)
Page 1   Page 2   Page 3
Added 16 Feb 04
 

An error was found in the original circuit by Mike Peebles, so an
"updated" version of the page is offered here.
JPG File
Page 4
Donated by Mike Tuggle
Added 21 Aug 04

#138
Akatuki Data Sheet

JPG File(s)
Page 1

Added 16 Feb 04

#139
Building A Crystal Set
JPG File(s)

Page 1    Page 2    Page 3

Donated by Brian Butler
Added 14 Mar 04

 

#140
Vest Pocket Crystal Receiver
JPG File(s)

Page 1   Page 2
added 3 Apr 04

#141
Umbrella Crystal Radio
A loop set
This is a copy of the original  patent of this device from 1928
I purchaced the originals patent records in April of 2004
JPG File(s)

Page 1    Page 2     Page 3 Page 4   Page 5     Page 6
added 3 Apr 04

 

#142
Electronics and Hobbyiests
JPG File(s)

Page 1
added 20 Apr 04

Donated by Brian Butler

#143
Cigar Box Radio
JPG File(s)

Page 1    Page 2
added 20 Apr 04

#79
Assymbly and Wiring Instructions for a Miller

JPG File(s)
Page 1    Page 2    Page 3



Miller Drawings and Ads and Info.
#144
JPG File(s)
Page 1    Page 2    Page 3

added 12 June 04

#146
Super-Sensitive
Vest Pocket Crystal Radio
(This is not the same "Vest Pocket" plans show elsewhere on this page)
JPG File(s)
Page 1  Page 2

added 12 June 04

#147
Selective, Fixed Detector Crystal Set


JPG File(s)
Page 1  Page 2

This set of plans is also below, but is a better copy
added 18 Jun 04


 
#148
Crystal Set Built Into Toy Telephone
JPG File(s)
Page 1

added 18 Jun 04


 
#149
Tiny Crystal Set
Built in Toy Bank
JPG File(s)
Page 1   Page 2   Page 3
 added 18 Jun 04

 
#150
Loudspeaker
Crystal Receiver
This set is really a 1 tube radio that can be converted to a crystal set
JPG File(s)
Page 1   Page 2   Page 3  Page 4
 added 18 Jun 04

 
#151
Crystal Set In A Bedside Lamp
I would not recommend making this radio. It is posted as reference only.
Could be dangerious.
JPG File(s)
Page 1   Page 2   Page 3  Page 4
added 25 July 04

 
#152
Space-Age Crystal Set
JPG File(s)
Page 1   Page 2   Page 3
added 25 July 04

 
#153
How To Build "Free-Power" Radios
JPG File(s)
Page 1   Page 2   Page 3

Donated by Andre Frechette VE2FAB
added 21 August 04


 
#154
Build a Modern Crystal Set
JPG File(s)
Page 1    Page 2    Page 3   Page 4
added 21 August 04

 
#155
Build a Crystal Set
The Original Solid-State Radio
JPG File(s)
Page 1   Page 2
added 21 August 04

 
#156
Transistorized Loop Crystal Receiver
JPG File(s)
Page 1   Page 2   Page 3  Page 4
added 21 August 04

 
#157
Sun Powered Radio
JPG File(s)
Page 1   Page 2   Page 3  Page 4
added 21 August 04

 
#165
A Solderless B.C. Crystal Receiver
JPG File(s)
Page 1
added 15 Oct 04
Donated by Terry Hicks

#166
A Modern Midget Set
JPG File(s)
Page 1


added 24 Oct 04
Donated by Terry Hicks

#167
A Matchbox Crystal Set
PDF File
Page1

added 17 July 2005
Donated by  Rod Wall

#168
Novel Crystal Set With Viriometer-Tuning

PDF File
Page1

added 17 July 2005
Donated by  Rod Wall

 #169
DX Crystal Radio Receiver
by Joseph Amarose

PDF File(s)
Page 1

Donated by Kenneth Ladd
added 03 Oct 05
 #170
Boy's Book of Crystal Sets
by W. J. May

PDF File(s)
Page 1

Donated by Lou Blaso
added 09 Oct 05
 #171
#96 Crystal Set Conctruction"
by B. B. Babani

PDF File(s)
Page 1

Donated by Lou Blaso
added 09 Oct 05
New Plans Section!!!!
New !
 #172
Cystal Receivers For Broadcast Reception
Book

PDF File(s)
(almost 5 meg download)
Page 1

Donated by Kenneth Ladd
added 08 Jan 06
New !
 #173
Radio Receivers - Cystal Receiver

JPG File(s)
Page 1     Page 2

me
added 14 Jan 06
New !
 #173
Subminature Portable Crystal Radio Receiver
This is a patent and not "plans"
PDF Format Only

Donated by Ken Ladd
12 March 2006
Spanish Language Plans
Planes Espaņoles De La Lengua
#56
Eficiente receptor a galena para telefonos
Efficient galena receiver for phones
Radio Plans in Spanish (donated by Lincoln Rivas, Chile, South America)

JPG File(s)


Page 1
Page 2
Page 3

Donated by Lincoln Rivas (Chile, South America)

#57
Un Excelente Receptor a galena
An Excellent Galena Receiver
Radio Plans in Spanish (donated by Lincoln Rivas, Chile, South America)

JPG File(s)


Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8

Donated by Lincoln Rivas (Chile, South America)

#57
Reception - Distintos Desinos De Receptores A Galena
Reception - Different Designs Of Galena Receivers
Radio Plans in Spanish (donated by Lincoln Rivas, Chile, South America)

JPG File(s)


Page 1
Page 2
Page 3
Page 4

Donated by Lincoln Rivas (Chile, South America)

#120
Receptores a Galena de Caracteristicas Especiales

JPG File(s)


Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8
Page 9
 

Donated by Lincoln Rivas (Chile, South America)

#121
Receptores Selectivos a Galena

JPG File(s)

  

Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8
Page 9

Donated by Lincoln Rivas (Chile, South America)

#122
El Reino de la Galena

JPG File(s)

  

Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8
Page 9
Page 10

Donated by Lincoln Rivas (Chile, South America)

#145
Receptor a Galena

JPG File(s)
Page 1    Page 2

Donated by Lincoln Rivas (Chile, South America)
added 12 June 04


#158
Construccion De Un Receptor De Cristal
(Construction Of A Crystal Receiver)

JPG File
Page 1

Donated by Lincoln Rivas (Chile, South America)
added 26 Sept  04


#159
Detector De Cristal
(Crystal Detector)

JPG File(s)
Page 1    Page 2

Donated by Lincoln Rivas (Chile, South America)
added 26 Sept  04


#160
Realizacion Practica De Un Receptor A Galena

JPG File(s)
Page 1    Page 2    Page 3

Donated by Lincoln Rivas (Chile, South America)
added 26 Sept  04


#161

Recepcion Con Galena
(Reception With Galena)

JPG File(s)
Page 1    Page 2

Donated by Lincoln Rivas (Chile, South America)
added 26 Sept  04


#162
Receptor A Galena Para Principiantes

JPG File(s)
Page 1    Page 2

Donated by Lincoln Rivas (Chile, South America)
added 26 Sept  04


#163
Receptor A Galena Sensible Y De Alcance

JPG File(s)
Page 1

Donated by Lincoln Rivas (Chile, South America)
added 26 Sept  04




#164

Receptor Miniatura A Galena

JPG File(s)
Page 1    Page 2

Donated by Lincoln Rivas (Chile, South America)
added 26 Sept  04

#165
DX Crystal Radio Receiver
by Joseph Amarose

PDF File(s)
Page 1

Donated by Kenneth Ladd
added 03 Oct 05

 

Harvey Harbicht's
"Cool Radio Plans"

Thanks to Rick (sorry, don't know last name) for finding all lost files

Click Here to go to "Cool Radio Plans" Entire Archive   New!!



Special thanks to Mick South (Michael) for the help in collecting 1/2 of these plans before they were lost!!

This is roughly 50% of the archives


58
Crystal Radio Circuits 101


 
 
 



Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8

 

#59
1250 Miles with a crystal detector

JPG File(s)
Page1

 
#60
Bare Bones Crystal Set
JPG File(s)
Page 1   page2


#61
A Beginners Broadcast

JPG Files(s)
Page1    Page2

 

#62
A Beginners Crystal Set
 
 

JPG File(s)
Removed, Sorry

 

#63
A Boys Book of Crystal Sets


 


Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8
Page 9
Page 10
Page 11
Page 12
Page 13
Page 14
Page 15
Page 16
Page 17
   

 

#64
A Bush Mans Crystal Set

JPG File(s)
Page 1

 

#65
A Card-Board Tube Radio
JPG File(s)
Page 1    Page 2     Page 3    Page 4

 

#66
Circuit Circus
JPG File(s)\


Page 1
Page 2
Page 3
Page 4
Page 5
Page 6

 

#67
Cockaday Four-Circuit Tuner
JPG File(s)
Page 1

 

#68
Hi-Fi Tuner
JPG File(s)
Page 1

 

#69
Dual Rectifications With Crystals
JPG File(s)
Page 1

 

#70
Emergency Twin-Crystal Radio Receiver 

JPG File(s)
Page 1   Page 2

 

#71
Free Power
JPG File(s)
Page 1

 

#72
Crystal Set Has Full-Wave Rectification
JPG File(s)
Page 1

 

#73
The Junior Radio Guild
Gernback
Gif File(s)
Page 1    Page 2

 

#74
High-Power Crystal Set

JPG File(s)
Page 1   Page 2    Page 3

 

#75
How to build a Crystal Set

JPG File(s)
Page 1   Page 2    Page 3

 

#76
An Inexpensive Crystal Set

JPG File(s)
Page 1   Page 2

 

#77
Magnetically Tuned Crystal Set
JPG File(s)
Page 1

 

#78
Build A MatchBox Crystal Radio
JPG File(s)


Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7 

 

#80
A Modern Crystal Set
JPG File(s)
Page 1

 

#81
An Operational Crystal Radio

JPG File(s)
Page 1

 

#82
Powerful Crystal Set
#2
This is not the same set as Powerful Crystal Set #1 above
JPG File(s)
Page 1    Page 2

 

#83
A Radio Set for 50 Cents
(not today's prices!!)
JPG File(s)
Page 1    Page 2

 

#84
The "By Request"

JPG File(s)
Page 1    Page 2    Page 3

 

#85
Operation Crystal
JPG File(s)
Page 1

 

#86
Short-Cuts in Radio
JPG File(s)
Page 1

 

#87
Simple Crystal Detector
JPG File(s)
Page 1

 

#88
Suggested Circuits
JPG File(s)
Page 1   Page 2

 

#89
A Super-Sensitive All-Wave Crystal Set
JPG File(s)
Page 1  Page 2

 

#90
Build a Veriometer Radio

JPG File(s)
Page 1     Page 2

 

#91
Construction of a Radio Receiving Apparatus

JPG File(s)



 



Page 1
Page 2
Page 3
Page 4 
Page 5
Page 6

 

#92
The Early Days Of Radio
JPG File(s)



 



Page 1
Page 2
Page 3
Page 4

 

#93
Modern Crystal Radio Receiver

JPG File(s)
Page 1    Page 2     Page 3

 

#94
Old-Time Flavor Crystal Radio
JPG File(s)



 



Page 1
Page 2
Page 3
Page 4

 

#95
Antique Radio

JPG File(s)
Page1

 

#96
Progressive Crystal Receiver

JPG File(s)
Page1

 

#97
Build a Crystal Set
The Original Solid State Radio

JPG File(s)
Page 1    Page 2

 

#98
Selective, Fixed Crystal Set

JPG File(s)
Page 1   Page 2

 

#99
A Simple Radiophone Receiver

JPG File(s)
Page 1 Page 2

 

#100
Super Crystal Radio
JPG File(s)
Page1

 

#101
Barebones Crystal Set
JPG Files(s)
Page1     Page2
#102
Nostalgia For The Future
JPG Files(s)



 



Page 1
Page 2
Page 3
Page 4

 

#103
For The Experminter
JPG Files(s)
Page 1

 

Popular Mechanics
All JPG File(s)
 
 

#104

Crystal Receiver built with junk-box parts
Feb 1937
page 1    page 2
 
 

#105

Seven Crystal Sets for Beginners
July 1941
page 1    page 2
 
 

#106

Crystal Receiver Is Built Into a Headset Unit
June 1941
Page 1
 
 

#107

"Big Town" Bike Receiver
Dec 1943
Page 1
 
 

#108

Two Modern Crystal Sets
Feb 1943
Page 1
This article is missing pages 2 and 3
If you have them, please let me know!
 
 
 

#109

Make The Parts For These Crystal Sets
Jan 1944
Page 1    Page 2
 
 

#110

Two Low Cost Crystal Sets
June 1945
Page 1    Page 2
 
 

#111

Sharp-Tuning Crystal Set for Experimenters
Nov 1945
Page 1
 
 

#112

"Tom Thumb" Crystal Set
Sep 1945
Page 1
 
 

#113

Two Ultra-Modern Crystal Receivers for
Experminters
Sep 1946
page 1   Page 2
 
 

#114

Tapped Coil Crystal Receiver and
Battery_Operated Amplifier
Apr 1948
Page 1    Page 2    Page 3
 
 

#115

Three Germanium Diode Crystal
Receivers for Beginners...
Dec 1950
Page 1      Page 2
 

#116

Low-Cost Receivers for Junior Builders
June 1951
Page 1    Page 2    Page 3


Radio Electronics
JPG File(s)
 

#117

Crystal Set Built Into a Toy Phone
June 1947
Page 1
 
 

#118
High Power Crystal Set
August 1960
Page 1    Page 2     Page 3
 
 

#119
Build a Ocean-Spanning Crystal Receiver
July 1981
Page 1    Page 2    Page 3

End of Harvey's old site


 
Old Transistor Radio Plans


Philmore
Portable Transistor Radio Kit
PDF Format
Page 1
New

 

VHF Ear
Listen to Airport Towers
(Note: I'm not sure they still are on this freq. Let me know!)
Page 1    Page 2
New

 
 
 
 

I'm looking for old plans to post!!
If you have any, please email me!!!



Build a Stirling Hot Air Engine

From Tin Cans!!!

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Crystal Radio
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