Welcome to the "Mastr Index" of
GE Exec II® Information
By Kevin Custer W3KKC

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Adding PL encode/decode to the Mastr Exec II  By Stewart Rabinowitz  KE5UT
GE Mastr Exec II Modification and Information Site  By Ray Vaughan KD4BBM   (offsite link)
GE Mastr Exec II Bandsplit Modification   By Matt Lechliter W6KGB
N1QNN's Modifications for converting an Exec II From 37 mc. to 52 mc   (offsite link)
Condor's VHF Custom MVP / Exec II mod to 222 MHz   (offsite link)
Converting a Mastr-Exec II and a Mastr-II to 900mhz     By Gene Colson W7UVH - a 10.5mb PDF of a 7 page article from CQ VHF June 1999
Another scan of the 900mhz Mastr-Exec II and Mastr-II article
KC7GSA's Tune Up Instructions for the MVP and EXEC II VHF   Receiver    and    Transmitter
A crystal frequency calculator for the Exec II   By John M. Kester   KD6FVA

Custom Built Mastr II Mobile & Station Repeater Conversions from Kevin Custer and Scott Zimmerman
NHRC Repeater Controllers made just for the GE   By NHRC, Simply plugs in!   (offsite link)
GE Mastr II® InfositeBy Jeff Otterson, and NHRC   (offsite link)
Oscillator/Multiplier modification for the VHF Mastr II   A mod for making the Mastr II have better 2 meter sensitivity by Jeff DePolo and Kevin Custer
Squelch modification for the Mastr II     A modification for making the Mastr II squelch work better by Kevin Custer and Scott Zimmerman
GE Mastr II Bandsplit Modification     By Matt Lechliter W6KGB
FM'ing the Phase Modulated Mastr II     Converting the PM Mastr II to true FM Modulation by Jeff DePolo WN3A
Mastr II Mobile Power Amplifier considerations for reliability   Modifying the Mastr II PA by Ray Vaughan KD4BBM
Help, my Mastr II® has lost receiver sensitivity!   Some Mastr II and Exec II helical castings grow whiskers and short out
S.E.I.T.S. Mastr II Information   (offsite link)
A crystal frequency calculator for the Mastr II     By John M. Kester KD6FVA

GE Mastr Exec II Misc:

Basic GE Mastr II ICOM information     Basic differences between EC, 5C and 2C (with pictures).
GE Mastr II ICOM information     Everything you wanted to know about the GE ICOM's   (offsite link)
The GE Mastr II email list server     For people seeking information on GE Mastr II's and Mastr Exec II"s

Step By Step GE Custom MVP Conversion Site:   By Kevin Custer W3KKC
GE MVP Bandsplit Modification      By Matt Lechliter   W6KGB
NO6B MVP to Repeater Conversion     By Bob Dengler NO6B
WB6RFW's GE MVP Radio Modifications
Condor's VHF MVP/Exec II 222 MHz Conversion
KC7GSA's Tune Up Instructions for the MVP and EXEC II VHF   Receiver    and    Transmitter
MVP Connectors and Pin kits for Sale from Eric Homa N6NMZ
Custom MVP Mobile Repeater Conversions from Kevin Custer W3KKC  GE conversions from the author of this site
Temperature Compensation Capacitor information for 5C ICOMS  13kb PDF   provided by Chuck WB2EDV

This is the official GE manual for the 4EX3A-11 standard test set - LBI-4454 Version B
Additionally, here are the schematics for the metering cables for various radios:
PortaMobile, Mastr-Pro and Exec  74kb
Mastr II, Exec II and MVP  68kb
Delta mobile   84kb
Metering cables parts list  40kb
With the information from the above LBI you could design a metering cable for almost any radio... even a Micor.

GE Phoenix, Rangr, Delta, and Ramsey FX Series   By Joe Burch K3JLS       (offsite link)
Modifying the GE S990 head for direct frequency entry   By David Hopper WD4JKH       (offsite link)
       The 9xx heads will work with all Delta S, Delta SX and Ranger series radios.

The "Mastr" list of LBIs   over 1.8 gig of PDF files
GE Technical Information     By Duane Hall of Hall Electronics   (offsite link)
The GE email list server     For people seeking information on General Electric or Ericsson equipment
The GE Mastr II email list server     For people seeking information on GE Mastr II's
GE Manuals from Ted Jansen     Good source for original GE manuals
GE Duplex Operation Curves    from KA9FUR     Curves that show how much isolation is needed for different GE Station configurations   (offsite link)

GE Mastr Trivia Question   By Mark A. Cobbeldick KB4CVN

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This web page, this web site, the information presented in and on its pages and in these modifications and conversions is © Copyrighted 1995 and (date of last update) by Kevin Custer W3KKC and multiple originating authors.   All Rights Reserved, including that of paper and web publication elsewhere.

The Repeater Builder's site does not evaluate the accuracy of materials created by persons beyond its control or supervision.   Therefore, although this site links to many additional web sites, The Repeater Builder's site is not responsible for the availability of or the accuracy of any materials contained within those web sites.