The Elmer Osterhoudt Collection 
Always Available
at Modern Radio Labs
®

●●●

Elmer G. Osterhoudt -

The Father of DX Crystal Radio

 

***Important Notice: We are in the process of converting all MRL® Literature into a different format for the internet and lower cost shipping. However, MRL® HB-4 & MRL® HB-11 are still available as stand alone titles, and a free catalog is included with either or both. Without purchase of literature, the MRL® catalog is available for $2, including electron tubes, parts, wire, coil forms, and the MRL® No 2 kit.*** We will update this page as soon as possible.

                                                                                                             

                                                                                        

 

MRL® Handbooks

These are exclusive items, not obtainable elsewhere. They represent notes from our large library and our own experiments since 1915 as well as reports from hundreds of fans. Each individual title is $4.50 postage (and handling) paid U.S.A. See below for special quantity pricing and the Complete Set of MRL® Literature by Elmer Osterhoudt

                

        © Photo Copyright 2002-2008

Catalog Number

Description

ISBN Number

Shipping Weight

Price

Postpaid U.S.

MRL® HB-1

Headphones: Operations and Repair

978-1-891501-00-5 

2 oz

$4.50ppd

MRL® HB-2

MRL® No. 2 and 2-A Long Distance Crystal Sets

978-1-891501-01-2

2 oz.

$4.50ppd

MRL® HB-3

Crystal Detectors

978-1-891501-02-9

2 oz.

$4.50ppd

MRL® HB-4

MRL® 1-Tube D.C. All Wave Set

978-1-891501-03-6

2 oz.

$4.50ppd

MRL® HB-5

Crystal Set Construction

978-1-891501-04-3

2 oz.

$4.50ppd

MRL® HB-6

How to Make Coils

978-1-891501-05-0

2 oz.

$4.50ppd

MRL® HB-7

Experiments with Magnetism and Coils

978-1-891501-06-7

2 oz.

$4.50ppd

MRL® HB-8

Radio Kinks and Quips

978-1-891501-07-4

2 oz.

$4.50ppd

MRL® HB-9

MRL® Radio Notes No. 1

978-1-891501-08-1

2 oz.

$4.50ppd

MRL® HB-10

Facts for Crystal Experimenters

978-1-891501-09-8

2 oz.

$4.50ppd

MRL® HB-11

Radio Operating as a Career

978-1-891501-10-4

2 oz.

$4.50ppd

MRL® HB-12

Radio Workbench Tips

978-1-891501-11-1

2 oz.

$4.50ppd

MRL® HB-13

Radio Notes No. 2

978-1-891501-12-8

2 oz.

$4.50ppd

MRL® HB-17

MRL® 20 Crystal Set Circuits

978-1-891501-13-5

2 oz.

$4.50ppd

MRL® HB-25

MRL® 18 Crystal Set Circuits

978-1-891501-14-2

2 oz.

$5.00ppd

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MRL® Detail Print Files

A detail file gives detailed information on our plans of HB-17, HB-25 and others. All plans are tested out in our labs before completion.  Lots of magazine plans do not work, but ours will ! Detail print files have consistently sold for over 65 years!  Many of our circuits are original and are not found in other publication.

Each MRL® Detail Print File is $7.50 each postage & handling paid USA

 

MRL® Detail Print File No. 1

15 Detail Prints Neatly Bound & Indexed for Cross reference 4oz.

MRL® Detail Print File No. 2

15 Additional Neatly Printed Detail prints to add to your collection of tested and revised circuits. This File includes some of our best circuits  4oz.

MRL® Detail print File No 3

16 More Detail prints for your collection 4oz.

 

___________________________________________________________________________________

 

MRL® "Radio Builder & Hobbyist"
Reprint issues of MRL Radio Builder & Hobbyist, and MRL Electronics and Science are $5.00 each postage (and handling) paid U.S.A.

MRL RB&H No. 41

MRL RB&H No. 42

MRL RB&H No. 43

MRL RB&H No. 48

MRL RB&H No. 49

 

MRL E&S No. 1

MRL E&S N0. 2

 

MRL® Data Sheets

MRL® Data Sheets is another MRL® Exclusive. Completed volumes are 12 pages, 8 1/2" X 11", photo lithographed and easy to read. They are chock full of long-lasting material. All circuits are checked for operation so you will have little trouble if followed right. Material is all solid - very little MRL® advertising. Featured most are constructional articles and facts needed by the experimenter. Often revised re-prints of older material is included. Parts lists, schematics, line drawings, and details are all given. DX reports and hints from Fans and our Lab.

         For a list of what is included in each Data Sheet, Click here.

NEW! All MRL® Data Sheets are now spiral bound in one volume. Seventy-two pages complete.     

 

For a list of what is included in each Data Sheet, Click here.


TESTED INSTRUCTIONS AND PLANS

***Important Notice: We are in the process of converting all MRL® Literature into a different format for the internet and lower cost shipping. However, MRL® HB-4 & MRL® HB-11 are still available as stand alone titles, and a free catalog is included with either or both. Without purchase of literature, the MRL® catalog is available for $2, including electron tubes, parts, wire, coil forms, and the MRL® No 2 kit.*** We will update this page as soon as possible.

 


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