I had a small mishap with my wire cutters while trimming the L33 (BFO
pre-wound torrid) and R116 (5.1Mohm 1/8 W) resistor's leads. As I went to trim the fine wire lead of the L33 I accidentally also cut a large chunk out of one of R116's leads. I'm wondering if I should try to "patch" R116's lead or admit the mistake and order a replacement L33 pre-wound torrid and R116 resistor? The problem is since I have trimmed both hair-fine leads of L33, I'm not certain I can re-solder the leads again in a "do-over" if I simply tried to replace the one-legged resistor. -Michael, VE3TIX _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
Michael,
If it was me, and I had a very high resistance part in my junk box, I'd give it a try. I'm pretty sure that resistor is there only to provide a mechanical support to this coil under the board. So, any very, very high resistance part can do the trick -- if it fits mechanically. If the leads from the torroid won't reach, you could solder a short discarded component lead horizontally a cm or so on each side from the new resistor's lead closer to the end of the wires. It should be stiff enough to stay in place. Even if you have to undo one turn on each side to get the wire long enough to secure it to the new resistor it is worth a try. When you do the VFO checks it will be obvious (?) that it did -- or didn't -- work. Given the variation in these things it sure seems worth a try. And it wouldn't look goofy like my above suggestion {grin}. The thing is, if these things above don't work, you've lost nothing. You can still remove the parts and replace them with fresh ones from our friends at Elecraft. I'd give it a try. (I hate to wait on parts!) Let us know how it worked out. -- Scott (NE1RD)
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In reply to this post by michael taylor-3
michael taylor wrote:
> I had a small mishap with my wire cutters while trimming the L33 (BFO > pre-wound torrid) and R116 (5.1Mohm 1/8 W) resistor's leads. As I went > to trim the fine wire lead of the L33 I accidentally also cut a large > chunk out of one of R116's leads. > > I'm wondering if I should try to "patch" R116's lead or admit the > mistake and order a replacement L33 pre-wound torrid and R116 > resistor? The problem is since I have trimmed both hair-fine leads of > L33, I'm not certain I can re-solder the leads again in a "do-over" if > I simply tried to replace the one-legged resistor. Keep in mind that the ONLY function of R116 is to support L33. So as long as L33 is connected to the circuit board pads, you will be fine. So by all means patch R116's lead; it's just there for mechanical reasons. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
On Jan 1, 2008 1:04 AM, Vic K2VCO <[hidden email]> wrote:
> > Keep in mind that the ONLY function of R116 is to support L33. So as > long as L33 is connected to the circuit board pads, you will be fine. So > by all means patch R116's lead; it's just there for mechanical reasons. Ah ha! I was throw off by the unusual value of R116 - 5.1 Megohms. I'm not sure why Wayne or whoever would pick that value, rather than say 1 Meg or 10 Meg. I think I may have a 10 Meg resistor that I can use as a mechanical support. But I think I'll wait until after I get some sleep before trying to salvage it. Happy New Year's. Thank you, Michael VE3TIX _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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