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Modifications

1. I do not accept responsibility for any losses that may occur from the use of any of the information contained on this site.
2. Any modifications that you do - are done at your own risk !
3. If you blow it -- you still own it!
4. The modifications page is for educational purposes only, many of the examples are illegal in some countries!

NOTE:
The mods for the Cobra 148 series are identical for the TR-296 series.
The mods for the RCI 2950 are the same for the RCI 2970

Modification Notes Located on this site:
TR-127 Series
  TR-127 Free Spirit &
TR-12GK   
For Freuency modifications
TR-296 Series
  TR-296 & TR-296F   
For MB8719 Chip
TR-300, 600, 900 Series
396F, 696F, 696F SSB,
 936, 939WX, 966, 969WX 
Clarifier & Frequency modifications
( TR -XXX ) Series
6300/6900 Mods
  FHP & FTB Series   
includes board layout
6300/6900 Mods
  F-25 & F-150 Series   
includes board layout
2980 Mods
  2980   
Shows board layout
2980WX Mods
  2980 WX   
Shows board layout

SS-158EDX

  158EDX 
Frequency expansion

SS-3900 GHP Mods
SS-3900 EGHP Mods
VR-9000

  3900 GHP Newer Version   
Shows board layout
FC-390 Mods
  148 & TR-296 Series  
  Converting the FC-390 Frequency Counter
for use with Cobra 148 & TR-296 Series  
Echo Mike Mods
 TR-696F SSB, RCI-2950/70,
& Other Radios 
  Converting the EM-117A Echo Mike
for use with other radios
Miscellaneous Mods
 2900 Series, 121WX 
  Talk back, Clarifier Modifications
Dumb Mods
 All radios 
  Dumb steps I have observed in modified radios