Question about Cobra 29 LTD CB Radio

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New power chip

Replace cobra power chip with RF-C1969 chip

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Won't do you any good unless you change the driver too.

Posted on Feb 19, 2009

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Hi,

To my knowledge on a Cobra 29 board, replacing TR14 (2SC2029) with a 2SC1969 is supposed to improve/increase the TX power output. Additionally however, L12, 13 & 14 must also be adjusted while the 29 is hooked up to a dummy load/watt meter. Should you wish to try for experimental purposes only:

  • Modulation improvement - adjust VR4 to desired level or cut D11or max talkpower remove TR18 .
  • replace TR14 with 2SC1307 (or 2SC1969).
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Posted on Sep 06, 2008

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