[ARC5] GRC-9 low power out.

[Dennis DuVall]

Jay, Jim

No ,never published in ER.  I did refer, though, to an ER article which described just how difficult it is to get to C-114.  A description of my fix can be found in the “Pictures" section in Yahoo Groups, Angry 9.  The mod has been successfully implemented in a couple more radios here since my original submission.

Update:  Grounding the lead from “point 3 where it connects to the switch wiper” (quote from my Yahoo submission) may be extremely difficult in some GRC-9 models.
In the one case where this was encountered so far, skipping his step and relying on the leakage and remaining capacity of C-114 to provide the required (RF) ground here worked OK.

Good luck.  

Dennis D.  W7QHO
Glendale, CA

***************** 
On Feb 25, 2016, at 12:26 PM, Jay Coward via ARC5 <arc5 at mailman.qth.net> wrote:
> 
> I think Dennis' method was in an ER article. Is there an ER index on line you can search.?
> Jay KE6PPF
> 
> 
> -----Original Message-----
> From: Mccarty, John J (John) (John) <jmccarty at alcatel-lucent.com>
> To: ARC-5 <arc5 at mailman.qth.net>; milsurplus <milsurplus at mailman.qth.net>
> Sent: Thu, Feb 25, 2016 12:01 pm
> Subject: [ARC5] GRC-9 low power out.
> 
> So my GRC-9 tx is experiencing a problem with low power output at all 
> power settings.
> I think I may have brought this up before, but as a function of my 
> increasing age, I can't remember
> if I did or not. I also can't remember or find the reference to an 
> article in ER that talks about the problem
> and a possible involved fix. I also seem to remember that someone 
> (Dennis?) has another method
> that does not involve opening the frequency multiplier can. The root of 
> the problem is a leaky cap
> in the multiplier can, c110, messing up the bias on the final.
> 
> Does anyone have the info I'm miss remembering? Or is this just another 
> bad flash back I'm having, again.
> 
> 
> tnx + 73
> 
> 
> John n9hrt
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