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    cobra 29 by dave made

    Did you figure out how they modified that cobra 29? I'm looking for diagram of the new circuits they installed and adjusted.
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    Siltronix SLM-100 Bi Linear Amplifier

    Thanks for the information. I'm curious how you determined the component values and transformer turns ratio.
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    Cobra 29 High Power mod with 2sc1969 transistor

    2SC1969 UPGRADE FOR COBRA 29 Thank you for the information. Gordon
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    GRAY 300 LINEAR SCHEMATICS NEEDED

    Does anyone have the schematics for this linear of mine which has four 455 power transistors and appears to have been made back in the 80's?
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    COBRA 148 NW ST QUESTION

    Ok, I'll do that and thank you very much for your help. Gordon
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    COBRA 148 NW ST QUESTION

    Hello Everyone, Im wondering about a replacement IC-4 for this radio because the one I am working on has that part missing. Also, by looking at the empty position where this component mounts to the chassis wall I see it only has three pins which is what bothers me since earlier 148GTLs...