Dino Papas <[EMAIL PROTECTED]> made an utterence to the drakelist gang
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Ok Drake gurus -- I'm ready to complete the mod of my recently acquired L-7 but need some help with the input circuit mod piece. I've bypassed the input low-pass filter and removed the bandswitch stop. From WB8RXI's QST mod from many moons ago what I need to do now is add two 68pF silver micas to the input, one across the input wafer and one from the bottom of the 15m coil to ground.
Here's the problem -- for anyone who has looked into the box that contains the input coils there just ain't no way to get to that part of the bandswitch/coil as it's all at the bottom of the box and from what I can determine pretty much inaccessible. The mod article makes it sound so easy so maybe I can't see the forest for the trees...Now here's the weird part....if you count the number of silver micas that should be in the domestic post-10m ban version there are 8 caps. When I count up the number of caps in the "box" I count a total of 10 and it appears to me (tough to see down there) that there is already a cap (conveniently with its printed side down and unreadable) attached to the wafer at the point the bottom end of the 15m coil is connected. Could it be that those 10m caps are ALREADY in there????? Guess I could just fire it up again now and see if it works on 10m but I'm still troubleshooting an arcing problem on 40m.
Another issue -- the bandswitch is pretty sloppy once you've clicked it over between positions -- is there anything that can be tightened to reduce that sloppiness or is that just a sign of the bandswitch wearing out (it's not the knob)?
Thanks in advance guys....
Dino KL0S/4
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