Same here. My Serial # 307, didn't have it. 73 Stewart G3RXQ On Sat, 29 Mar 2008 10:57:38 -0500, Phil & Debbie Salas wrote: > My K3, Ser. No 308, does NOT have the HAGC mod. So the SN 211 guestimate > appears pretty far off. > > Phil - AD5X > > "Correct...units prior to ~211 will need it and afterwards will not. If > yours is near 211 (+/-), you may need to check the capacitance of C222 using > a capacitance meter. It should read ~0.1 uF (or ~100 pF) if the mod has > been installed (if not it will read ~1 uF). > > I'm guessing on this, and hopefully Eric or Wayne should confirm, but I > would expect that both the HAGC and keying mods were implemented in > production at the same time, since the S/N transition is the same for both > (i.e. ~211). If this is true, you can easily determine if your unit was > modified by looking for a discrete 1.8k resistor installed between C196 and > C197 as shown in the HAGC mod instructions. If that resistor is in place, > it's a good bet that C222 has been replaced as well, but a capacitance meter > will tell for sure. 73, Bill W4ZV" > > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > 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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