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.

© Photo Copyright 2002-2008
|
Catalog Number |
Description |
ISBN Number |
Shipping
Weight |
Price
Postpaid
U.S. |
|
MRL®
HB-1 |
978-1-891501-00-5 |
2 oz |
$4.50ppd |
|
|
MRL®
HB-2 |
978-1-891501-01-2 |
2 oz. |
$4.50ppd |
|
|
MRL®
HB-3 |
978-1-891501-02-9 |
2 oz. |
$4.50ppd |
|
|
MRL®
HB-4 |
978-1-891501-03-6 |
2 oz. |
$4.50ppd |
|
|
MRL®
HB-5 |
|
2 oz. |
$4.50ppd |
|
|
MRL®
HB-6 |
978-1-891501-05-0 |
2 oz. |
$4.50ppd |
|
|
MRL®
HB-7 |
978-1-891501-06-7 |
2 oz. |
$4.50ppd |
|
|
MRL®
HB-8 |
978-1-891501-07-4 |
2 oz. |
$4.50ppd |
|
|
MRL®
HB-9 |
978-1-891501-08-1 |
2 oz. |
$4.50ppd |
|
|
MRL®
HB-10 |
978-1-891501-09-8 |
2 oz. |
$4.50ppd |
|
|
MRL®
HB-11 |
978-1-891501-10-4 |
2 oz. |
$4.50ppd |
|
|
MRL®
HB-12 |
|
2 oz. |
$4.50ppd |
|
|
MRL®
HB-13 |
|
2 oz. |
$4.50ppd |
|
|
MRL®
HB-17 |
978-1-891501-13-5 |
2 oz. |
$4.50ppd |
|
|
MRL®
HB-25 |
|
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.