Got it. Thanks Don. When I removed the 78L06, good things happened. Now I
just have to determine if that is the culprit or something else in that part
of the circuit. Love the reflector. Its saved me more than once!
--
View this message in context:
Ok, I've done a lot of dumb things in 37 years of amateur radio but when
constructing my second K2 a few weeks ago, I dropped a piece of component
wire on the RF board while doing the second power up test on the receiver.
Bam, no power at all, no lights, no relays nada. I thought I blew D10 on
John,
Either remove T3 or remove the PA transistors and see if it comes back
to life.
If it does, then replace the PA transistors. A dropped wire that
happens to short between the collector and the base of the PA
transistors will take them out in a microsecond!
73,
Don W3FPR
On 11/7/2011
Thanks Don, Elecraft told me the same thing. However, as I told them, I'm on
the second power up test in the manual, there is no T3 or PA transistor in
on the board at this time. I've built the front panel, the control board
and the receiver, no transmitter yet. I'm pretty sure its something in
Sorry for my oversight - It did hit me that you only had the receiver
section built.
Can you follow on the schematic? I doubt the fuse is faulty - it is
probably working just fine and opens because there is more than 5 amps
of current - it does act rather fast.
Can you follow along in the
Maybe try a different 12V source? I'm wondering if the short might
have damaged the supply.
Mark AD5SS
On Mon, Nov 7, 2011 at 4:53 PM, ke4d k...@arrl.net wrote:
Thanks Don, Elecraft told me the same thing. However, as I told them, I'm on
the second power up test in the manual, there is no T3
6 matches
Mail list logo
