Re: Unexpected Blowing of Fuses on Transmit


MVS Sarma
 

Correct Jerry. 


On Mon, 2 Dec 2019, 10:45 am Jerry Gaffke via Groups.Io, <jgaffke=yahoo.com@groups.io> wrote:
If the fuse blows when you push PTT but before speaking into the mike,
it probably is not mike gain or the RV1 drive setting.
Most likely trouble around the IRF510's somehow.

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You cant have all of 
1. Preset gate more than 100mA drain current,
2. Hi rf drive with q90 collector preset and
3 boosted mic gain with presetbfor modulation level control. 
 
You may have to reduce at two of the locations. 
 
All the best 
 

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