Joe,
Great that you now have the XV144 now stable.
It would appear that the power module has gone "belly up". I don't know
if Elecraft has any left (the XV50 was discontinued), but you can check.
Also check at RF Parts to see if you can find one.
As I recall, that power module was discontinued.
73,
Don W3FPR
On 7/18/2020 9:50 AM, Joseph McIntire wrote:
The question I have is on the XV50 At first it did not work I
found Q5 to not be biasing. So I replaced it. This kit was partially put
together by my father in law who purchased it before he passed. Then about ten
years later I decided to finish it. But any how when I went to replace Q5 it
looked like two of the legs may have been solder bridged and shorted. Maybe it
as not bad. But I was already unsoldering it and had a new one so I just went
ahead and replaced it. Then it would turn on after that. Then in the alignment
I was not getting voltage at TP5 with the radio keyed. Re soldered some joint I
found that looked suspect and once again cleaned all the flux from the board. I
had voltage at TP5 for a short time. Then it went away upon investigating I
realized I did not have that coax selected at the coax switch to go to the
dummy. So I guess I transmitted into an open ended coax. Probably SWR way to
high. And I probably burned up the power module. Looking
fr
om the front of the Xverter on the third lead toward the rear I have 13 VDC.
On the second one back I get 4.4 VDC when keying. But never get any worth while
at the fourth one back. All I get there is about .011 when keyed. So IT looks
like the power module is getting power and is being keyed but I am not getting
anything out of it. Just hoping for someone to tell me if this is correct and
maybe if I can get this part from Elecraft or not.
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