| Author |
Message |
    
Stevetonka
New member
Username: Stevetonka
Post Number: 6
Registered: 3-2012
| | Posted on Sunday, August 12, 2012 - 9:04 pm: | 
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I have a Cobra 2000 GTL, when first turned on in AM Mode for the first 90 seconds radio works fine. After that when radio is keyed up, transmit will pulse in and out in and out wattage drops out on pulse.
When in receive mode radio works fine.I changed the AM regulator with no improvement. I have never seen this problem. The TX has perfect timing just like windshield wipers, in out in out. Please help Thank you. |
Press_man
Advanced Member
Username: Press_man
Post Number: 593
Registered: 5-2008
| | Posted on Wednesday, August 15, 2012 - 5:41 pm: |
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Sounds like a cap-------------check caps and diodes in driver or final bias. Time envolved job but recapping the radio won't hurt.
73 Pressman
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Stevetonka
New member
Username: Stevetonka
Post Number: 7
Registered: 3-2012
| | Posted on Monday, August 20, 2012 - 12:19 pm: |
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Radio Fixed. Just wanted to touch base on this radio. Found C-153 47uf running around 16uf (replaced) Still had same problem. Replaced TR36 (Final) With (2SC1969) and cured problem. Press Man thank you for your help, The old man tips his hat to you. |
