Very good, Tom. And it occurs to me that, since your 590 is brand-new, it's
not likely that you would have a problem with the fuse holders at this stage
anyway. Hang in there and I know you'll get to the bottom of it. 73, lou
----- Original Message -----
From: "tom behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, June 25, 2011 8:17 AM
Subject: Re: Low Output Power
> Lou:
>
> The 590 does indeed have in line fuses. They are the flat auto-type
> fuses,
> and I believe they are rated at 25 amps.
>
> My first step will be to take voltage readings on the power cord to the
> radio as others suggested, and will go from there.
>
> Hopefully, I'll get lucky, and my voltage will be ok there.
>
> Then, it will just be a matter of trying to find out where my voltage drop
> is by removing and then re-installing various pieces of equipment in my
> station.
>
> If my initial voltage is not 13.8 via this method, then I may have to look
> at my power supply.
>
> In saying all of this, I fully realize that a 10 watt power reduction
> isn't
> really going to mean anything in the end, but it would be good to know
> that
> the rig can deliver the 100 watts maximum output power if needed.
>
> 73 from Tom Behler: KB8TYJ
>
> ----- Original Message -----
> From: "Lou Kolb" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Saturday, June 25, 2011 8:07 AM
> Subject: Re: Low Output Power
>
>
> Tom,
>
> Usually, you have to take apart the fuse holder, sometimes a difficult job
> depending on how they are designed, and clean both the fuse ends and the
> contact pieces in the holder. I imagine denatured alcohol, such as we
> used
> to use to clean tape heads, would work, and sometimes just a good brisk
> rubbing with a cloth will do it. When nothing else was available, I've
> even
> been known to use a shirt sleeve. You'll probably get more expert
> opinions
> on this from others on the list but I've been burned by it in the past
> with
> the TS-440 so thought I'd throw it out there. I don't know if the 590 has
> in-line fuses or not. The K3 does not have them. Good luck. Lou WA3MIX
> ----- Original Message -----
> From: "tom behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Saturday, June 25, 2011 8:01 AM
> Subject: Re: Low Output Power
>
>
>> Lou:
>>
>> What's the best and safest way to deal with that issue?
>>
>> 73 from Tom Behler: KB8TYJ
>>
>> ----- Original Message -----
>> From: "Lou Kolb" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Saturday, June 25, 2011 6:36 AM
>> Subject: Re: Low Output Power
>>
>>
>> Also, beware of in-line fuse holders. They can carbonize and cause all
>> kinds of issues with voltage drop. Lou -- WA3MIX
>> ----- Original Message -----
>> From: "tom behler" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Friday, June 24, 2011 9:31 PM
>> Subject: Re: Low Output Power
>>
>>
>>> These are great suggestions, Mike.
>>>
>>> Thanks so much.
>>>
>>> Will give them a try.
>>>
>>> What would you suggest cleaning the lead terminals and power supply lugs
>>> with?
>>>
>>> 73 from Tom Behler: KB8TYJ
>>>
>>> ----- Original Message -----
>>> From: "Mike Duke, K5XU" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Friday, June 24, 2011 9:26 PM
>>> Subject: Low Output Power
>>>
>>>
>>> I recently had a similar problem with one of my TS570's.
>>>
>>> The problem turned out to be an apparently dirty connection between
>>> the power cable and my Astron 35, which caused a voltage drop at the
>>> radio end of the cable.
>>>
>>> Cleaning both the power supply terminal bolts, and the ring lugs on
>>> the power cable solved the problem.
>>>
>>> The output went from 70 watts to 98 as measured by the TW1.
>>>
>>> Someone with a multi meter can confirm the voltage as it appears on
>>> the terminal bolts. The voltage can also be checked on the radio end
>>> of the cable, where it is normal to see a slight drop, but not the 3/4
>>> of a volt drop that I was seeing before cleaning and tightening all
>>> the connections.
>>>
>>> Of course, shortly after going through all those gyrations, that newly
>>> cleaned power supply was the one that took the lightning hit about 2
>>> months ago.
>>>
>>>
>>> Mike Duke, K5XU
>>> American Council of Blind Radio Amateurs
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