[TenTec] Pegasus xmit problem

[Duane - N9DG]

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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