I'm wondering if the bias is set wrong. If anyone's done any mods to the
radio at all, I can't find them. When I got it I had to tighten up the
SO-239 connector on the back and in doing that I pulled the hole radio apart
and there's nothing in there that's obviously been messed with other than
the tubes have obviously been changed but there's nothing anywhere in there
that suggests much if any other work, no sloppy soldering jobs or anything
that looks like it was done besides original. Nothing cut, it really looks
original in there.
----- Original Message -----
From: "Keith Barrett" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, May 16, 2008 4:59 PM
Subject: Re: power mods for tube rigs.
> Hi,
>
> Has someone been doing mods to that ts-520?
>
> Google for the ts830 survival guide. Lots of interesting stuff which
> applies
> to the ts5 and ts8 series. There are mods in that guide for increasing
> output
> but the valves do not last long. From what I can remember it involves
> changing components in the p.a. compartment.
>
>
>
> On 15 May 2008 at 10:20, John Miller wrote:
>
>> Depending on how hard you have to work at it to keep the power that low,
>> yes
>> it will decrease the life to the tubes and probably a few other things. I
>> know my TS-520 wants to put out way way more than it should on 75 and I
>> have
>> 1 hell of a time trying to hold it back with in range of the tubes
>> tolerances. I'll adjust that before I run it on 75/40 again where I have
>> that problem. I don't think those tubes can handle anywhere near the
>> power I
>> get out on 75 for very long. Anyway, you can't do it with the mic gain? I
>> know it gets touchy but there should be a way. It might be time to search
>> on
>> the internet for a way to do that.
>> ----- Original Message -----
>> From: "Shaun Oliver" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Thursday, May 15, 2008 9:46 AM
>> Subject: Re: power mods for tube rigs.
>>
>>
>> > hmmm. I didn't know you could do it that way. would that not reduce the
>> > life and efficiency of the tubes?
>> > I always thought you had to go for max output.
>> >
>> > Shaun
>> > web sites:
>> > http://www.myspace.com/blindmanshaunoliver
>> > http://blindman.homelinux.org/~blindman/
>> > skype: brailledude
>> >
>> >
>> > On 15/05/2008 11:39 PM, the old scribe known as Danny Dyer was able to
>> > impart this pearl of wisdom:
>> >> Congrats On moving toward licensing. While I'm Not Familiar With That
>> >> Particular rig, but you can likely reduce the power via your tuneing
>> >> up
>> >> and
>> >> loading schemes. The radio doesn't have to transmit at full power.
>> >> If
>> >> you
>> >> have a manual for the radio, consult its' wisedom. Again,
>> >> Congratulations
>> >> and all the best to you Sir, Sincerely, Danny Dyer, Wb4idu.
>> >> ----- Original Message -----
>> >> From: "Shaun Oliver" <[log in to unmask]>
>> >> To: <[log in to unmask]>
>> >> Sent: Thursday, May 15, 2008 9:33 AM
>> >> Subject: power mods for tube rigs.
>> >>
>> >>
>> >>> Hi guys, I'm just that much closer to gaining my license. sent away
>> >>> for
>> >>> my foundation license manual today. now. the issue is, I wanna run my
>> >>> radio at 10w and simply backing the mic gain off won't cut it.
>> >>> is there a mod I could have a qualified tech do to reduce the output
>> >>> on
>> >>> my old yaesu ft-201? if so, what's involved?
>> >>> thanks in advance guys.
>> >>>
>> >>> --
>> >>> Shaun
>> >>> web sites:
>> >>> http://www.myspace.com/blindmanshaunoliver
>> >>> http://blindman.homelinux.org/~blindman/
>> >>> skype: brailledude
>> >>>
>> >>
>> >>
>> >> __________ NOD32 3101 (20080515) Information __________
>> >>
>> >> This message was checked by NOD32 antivirus system.
>> >> http://www.eset.com
>> >>
>> >>
>> >>
>> >
>>
>>
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>>
>
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