Got an old classic Cobra 142 GTL on the desk.
Issue:
Transmit low in all modes
Receive low in all modes
Controls/switches scratchy
Variable key not functioning correctly
Decided to do a complete recap first. Upon removing the old caps, I noticed the C92 location had a 330uf 16v cap instead of the typical 47uf. This cap does look as though it's newer than the others.
Is there any benefit to increasing C92 from the factory value of 47uf up to a value of 330uf?
Now, I know you can increase the value of the cap next to the AMC Timing capacitor in the 148/2000 for increased modulation, but never heard of increasing C92 in a 142.
While I'm on the subject and in the process of replacing all the caps in this 142, do you guys have any recommendations on certain electrolytic caps in a 142 that can be tinkered with for more modulation, other than C90 (AMC Timing capacitor)?
Issue:
Transmit low in all modes
Receive low in all modes
Controls/switches scratchy
Variable key not functioning correctly
Decided to do a complete recap first. Upon removing the old caps, I noticed the C92 location had a 330uf 16v cap instead of the typical 47uf. This cap does look as though it's newer than the others.
Is there any benefit to increasing C92 from the factory value of 47uf up to a value of 330uf?
Now, I know you can increase the value of the cap next to the AMC Timing capacitor in the 148/2000 for increased modulation, but never heard of increasing C92 in a 142.
While I'm on the subject and in the process of replacing all the caps in this 142, do you guys have any recommendations on certain electrolytic caps in a 142 that can be tinkered with for more modulation, other than C90 (AMC Timing capacitor)?