MISCELLANEOUS DOCUMENTS
Here are some assorted documents which weren't on the web anywhere else and which seem to have been in demand. This list will get longer as time goes by.
Military URM-25D Signal Generator Lankford Notes
Here are the notes written by Dallas Lankford in the 1980's which were in Hollow State Newsletter regarding rebuilding the military AN/URM-25D signal generator. It's my understanding that Ralph Sanserino, the publisher, passed away a few years ago and they are thus no longer available as a hard copy. Thanks to Don Spellman from the Antique Radio Forums for the scan. This is about a 900 kb file. Either click on the title above to open the file (you will need Adobe Reader or an Open Office equivalent, this is a pdf document) or right click on it, select "Save Target As..." and select the destination folder to save it on your PC. Adobe PDF document. CLICK HERE
Regency M-100 Scanner Ham Band Modifications
These are my instructions for opening up the bandwidth of the Regency M-100 scanner to cover the 10 and 6 meter amateur band. This is just a link to my html page, not a download. CLICK HERE
Meissner Signal Shifter Plug-In Coils I.D.
This is a chart I made of the plug-in coil set part numbers for the prewar Deluxe Meissner Signal Shifter VFO/exciters. The part numbers were originally printed on a cardboard disc glued to the top of each coil, but these discs fell out and were often lost over the years. The part numbers were also printed in faint silver paint near the base of each coil. If those numbers are still visible, you can use this chart to identify the coil's band. Note that the coils have different numbers of pins on the bottom, so that they can not be plugged into the wrong stage. Single Adobe PDF page. CLICK HERE
Needhams EMP-20 Manual and Software
Needhams went out of business recently, taking with it the web page and thus the software and the manuals for the EMP-20. Note that the EMP-20 was also labeled and sold under the EETools brand name. Note also that the software is a DOS file (not zipped) and the EMP-20 runs off the parallel port of an older PC in the DOS mode. Please note that some browsers and virus programs won't let you download an .exe file (the software.) You'll have to work around that if necessary. The Device List shows you what you can program provided you have the little comb-looking PC board configuration key which slides into the side of the programmer for that family.
EMP-20 Manual, 320 kb PDF document: CLICK HERE
EMP-20 Software (DOS, 900 kb, Save this .exe file to disk, don't run it from here!) CLICK HERE
EMP-20 Device List, 109 kb PDF document CLICK HERE
Twinlead J-Pole VHF Antenna
This is an instruction sheet I created for making a J-Pole style VHF ham antenna out of a length of old 300 Ohm TV style twinlead cable. Adobe PDF document, one page. CLICK HERE
Low Band Antenna Cutting Chart
I didn't have any luck finding one of the old low band ball and spring antenna cutting charts on the web, so here it is. If you need it, you know why. This takes you to a web page. CLICK HERE
Ver. 6/27/2011