Cobra 29 cap changes

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Goldfinger
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Cobra 29 cap changes

Postby Goldfinger » Sat Mar 19, 2011 7:48 pm

Cobra 29LTD with the TA7222AP audio chip

Receive:
Change C33 and C40 to 2.2uF non-polarized electrolytic or mylar
More highs?: remove C204 (some year ranges don't have this cap)

Transmit:
Change C69 to a .001uF disc
Change C68 to a 1uF Tantalum (some radio's already have a 1uF in them)
Change C37 to a .068uF mylar (or parallel a second .033uF mylar with the existing one)


New 2010/2011 Cobra 29LTD (TDA2003 audio chip)

Receive:
Remove C170
Change C33 and C40 to 2.2uF non-polarized electrolytic or mylar

Transmit:
Change C68 to a 1.5uF tantalum with the + side towards the right (audio chip) side of the radio.
Change C69 and C125 to .001uF disc
Change C37 and C43 to .1uF mylar

Location of C170 on newer model:

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wwpdx
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639AZ
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Postby 639AZ » Sun Mar 20, 2011 8:46 pm

Thanks I know several people including myself will need this.
639

In the Cactus Patch
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