[TenTec] Pegasus xmit problem

[Rich McCabe]

Thanks for the response guys.

This thing had leaky finals in it once and  Ten-Tec replaced them. The 
heatsink was getting hot then during RX. Now its cool as can be.

Carl, the boards are all mated up properly. I removed the front panel as 
that is about the only way to make sure. That is good to go.

I have also had low-pass issues on two Pegasus. They start dropping out 
during receive. I thought maybe something was stuck or maybe a bad coil. I 
just replaced all of them since I was not sure which ones were flickering on 
me. Same issue. 15 and 20 xmit only.

I think I might pull the lowpass board again and give it a good once over. 
Seems like that is the problem area to me

73 and thanks again.

Rich
kd0zv


----- Original Message ----- 
From: "Denton" <denton at oregontrail.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Thursday, January 26, 2006 8:23 PM
Subject: Re: [TenTec] Pegasus xmit problem


>I had the 20 meter section cease xmiting on my Pegasus...turned out that 
>one
> of the relays on the bandpass filter board developed an open circut on the
> relay's coil....I think, since I used the rig on 20 meter psk 
> predominately,
> that the coil wire simply burnt open.
> Both the input and output relay's coils are in series with one another, 
> FWIW
> ----- Original Message ----- 
> From: "Carl Moreschi" <n4py at arrl.net>
> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> Sent: Thursday, January 26, 2006 6:08 PM
> Subject: Re: [TenTec] Pegasus xmit problem
>
>
>>I would guess because you removed the tuner that the board with the low
>>pass
>> filter relays on it is not fully seated in the pegasus.  This board goes
>> right next to the tuner board and is very easy to dislodge when adding or
>> removing the tuner.
>>
>> Carl Moreschi N4PY
>> 121 Little Bell Drive
>> Bell Mountain
>> Hays, NC 28635
>> ----- Original Message ----- 
>> From: "Duane - N9DG" <n9dg at yahoo.com>
>> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
>> Sent: Thursday, January 26, 2006 8:49 PM
>> Subject: Re: [TenTec] Pegasus xmit problem
>>
>>
>>> Rich,
>>>
>>> I'd be suspect of a couple things:
>>>
>>> 1. Output transistors have gone bad, would be a bit
>>> surprising for a radio that was just sitting though. The main
>>> clue to look for for this type of failure is if the PA heat
>>> sink is warm or hot while only in RX.
>>>
>>> 2. LP filter relays not switching properly (bad relay). This
>>> more typically effects just one band, unless it is the 15Mor
>>> 20M relay stuck closed. Another possibility along this line
>>> would be that the board interconnects are intermittent,
>>> haven't really heard of the Pegasus having that kind of
>>> problem though.
>>>
>>> Both of these problems are not uncommon for the Pegasus
>>> though frequency that I see postings about people running
>>> into them have dropped dramatically in the last couple years.
>>>
>>> Duane
>>> N9DG
>>>
>>> --- Rich McCabe <r.mccabe at 1967z28.com> wrote:
>>>
>>> > I have a Pegasus that has been sitting in storage for
>>> > awhile. I am just
>>> > pulling it out and getting it back online.
>>> >
>>> > When I put it away I removed the factory internal tuner. I
>>> > am pretty sure I
>>> > checked it afterwards but its been long enough I cant
>>> > remember for sure.
>>> >
>>> > Anyway, it transmits about 75 watts on 15 and 20 meters but
>>> > has no power on
>>> > any other bands. It acts like it is transmitting but has no
>>> > power out. As a
>>> > matter of fact,  it is drawing HIGH current on the other
>>> > bands when
>>> > transmitting. I think on 15 and 20 it is draws about 12
>>> > amps (crude estimate
>>> > based on astron meter) and on other bands that have no
>>> > power out it is
>>> > drawing anywhere from 15 to 30 amps.
>>> >
>>> > Just getting ready to tear into it. Any suggestions?
>>> >
>>> > Rich
>>> > kd0zv
>>>
>>>
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