Tom,

I've put in more than my 2 cents on this one so what's another penny or 
2?   I think part of the problem  starts with  using the term "relay 
tripping".    This kind of gives the idea of an amp  going off line due 
to a fault as a result of some protection  device.    W8JI seems to 
think your amp has a  optional grid protection unit and I think 
everything he says is based on that.  I had mentioned the possibility of 
this grid protection thing a few days ago at the start of this thread, 
but didn't think your amp had this option.

Maybe a better discription of your problem is something like "T/R relay 
clicking at odd and infrequent times".

Most of the amature detecctives on the list (including me) thinkthe 
problem is external to the amp:    Amp buffer, PTT, control cables, or 
whatever.

I know you want to get to the bottom of this, but don't tear the station 
down to the foundation before trying some of the simple things.

BTW, a few years ago there was some discussion of  an LDG breakout box. 
  you had mentioned you had put this on your list of things to get.   if 
you have one, you can use it as an interface between radio and amp. 
Otherwise, to get the buffer out of line, you will need to build, buy, 
or steal the proper cable.    If you have the LDG box laying around you 
can do a quick and dirty interface with a couple of RCA cables and see 
if the buffer is bad.

73, Steve KW3A
On 3/12/2014 5:57 PM, Tom Behler wrote:
> All:
>
> Below is a response from Tom (W8JI) regarding my tripping relay issue.
>
> I don't fully understand all of the technical details here, or how best to
> address them, but would be interested in any thoughts anyone has.
>
> Thanks, Mike, for posting my quiry, and sending this response to me.
>
> Tom Behler: KB8TYJ
>
>
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Michael Ryan
> Sent: Wednesday, March 12, 2014 4:38 PM
> To: [log in to unmask]
> Subject: Re_tripping relay
>
> Tom:
>
> Here's tom W8JI's reply regarding your tripping relay.
> Hope you can get something out of it.
>
> 73:
> Mike VO1AX
>
> Mike,
>
> In the text question below, I am not familiar with the TS590 menu settings.
>
> That aside, I am assuming he has a GOP board installed. If so, the GOP will
> trip on peaks over 193 mA.
>
> Something is causing peak current to exceed 193 mA, or he could have a bad
> meter protection diode causing the grid meter to be wrong.
>
> He does have that board installed??
>
> Why not use a tone oscillator that lets you hear the grid current? It would
> be pretty easy to use the ALC jack for that output if you have an external
> oscillator. The grid meter is 0.3 volts full scale at 200 mA.
>
> 73 Tom
>
>
>