Tom, Did you check the voltage again now that the power is up?
----- Original Message ----- 
From: "Tom Behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, December 29, 2011 7:03 PM
Subject: Re: Reduced TS590 Output Power Followup


>    Pat and all:
>
> Well my approach at this point will be just to keep an eye on things, and
> check periodically for later output power drops.
>
> If the RS35 does get flaky again, I am going to keep the Samlex switching
> supply in the home shack as a back-up.  No sense having it just sitting 
> out
> in the RV in the dead of winter doing nothing.
>
> 73 from Tom Behler: KB8TYJ
>
> ----- Original Message ----- 
> From: "Pat Byrne" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, December 29, 2011 8:43 PM
> Subject: Re: Reduced TS590 Output Power Followup
>
>
>>I have to join the concensus Tom; perhaps disconnecting and
>> reconnecting the power leads to the Astron cleared a bit of corosion
>> or something that was causing a voltage drop down the chain, but
>> sounds now like you are back in business.  Part of me wants to get
>> serious and check voltage and power outputs but the practical lazy
>> side of me says leave sleeping dogs lie!!
>> But you wound up on top.
>> Happy New Year!!
>> Pat, K9JAUAt 06:46 PM 12/29/2011, you wrote:
>>>     Hi, all.
>>>
>>>Well, it has been a very interesting hour here, as I have tried to figure
>>>out what was going on with the reduced power readings I was getting with
>>>my
>>>TS590.
>>>
>>>First of all, I want to say a great big thanks to Steve Dresser (WA1RTB).
>>>For whatever reason, I did not know that pressing the PF function button
>>>for
>>>S meter readings when transmitting gives you the rig's output power.
>>>Knowing this, and using this function has made a world of difference.
>>>
>>>Before I say anythihng more, let me re-state that all power readings were
>>>taken with the rig's internal tuner off, the TX power control in the
>>>highest
>>>possible position, and with my Tentech 238A manual antenna tuner in the
>>>bypass position.
>>>
>>>My first series of tests this evening involved taking power readings at
>>>the
>>>resonant frequency of one of my antennas.  My output power readings with
>>>both the TW1 and the Rig's power meter varied anywhere from 68 to 80
>>>watts.
>>>In all cases, I was using my Astron RS35 linear power supply.
>>>
>>>
>>>
>>>Then, I decided to switch power supplies.  I retrieved my Samlex 1235
>>>supply
>>>from my RV, and tested things with that supply.  Again, for the tests, 
>>>the
>>>conditions were the same with this new supply.
>>>
>>>When I took power readings this time, the rig's meter gave me a solid and
>>>consistent 100 watts.  The TW1 gave me readings that varied between 87 
>>>and
>>>89 watts, but they were at least closer to being in the ballpark
>>>especially
>>>when it is considered that the TW1 has about a 10% error margin.
>>>
>>>Then, I connected things back up to the Astron RS35 supply, and, for
>>>reasons
>>>that I don't understand, I once again got consistent 100 watt readings
>>>from
>>>the TS590 watt meter, and found the TW1 readings to vary from 81 to 89
>>>watts.
>>>
>>>As a result, I am coming to two conclusions:
>>>
>>>1.  Either something is starting to get flaky with my 14-year-old RS35
>>>supply;  or
>>>
>>>2.  When I did the tests with the Samlex supply, something might have
>>>gotten
>>>re-set in the rig so that 100 watts now means 100 watts.
>>>
>>>Do any of these arguments make sense?
>>>
>>>Should I begin to get into the market for a new power supply?
>>>
>>>Just seeking some advice here.
>>>
>>>73 from Tom Behler: KB8TYJ
>>