Information Update: Check the Photos and Files section for new uploads and be sure to post yours to share with the group. Updated DC40Kit information will be...
dc40kits@yahoogroups....
Jul 12, 2009 11:39 am
1285
Information Update: Check the Photos and Files section for new uploads and be sure to post yours to share with the group. Updated DC40Kit information will be...
dc40kits@yahoogroups....
Jul 26, 2009 4:36 pm
1286
Has anyone had any success with a DCxxB using a straight key? Mine misfires form time to time. I had it working by replacing the keyer with a transistor...
... RIT? Do you mean the amount of offset of the xtal oscillator in RX mode? I had about 1.2KHz as well, but I added extra capacitance across the trimmer. My...
Your right Julian, I meant TxRx offset when I said RIT. Are you saying your DC20B is FB with a streight key? 72, Halam M0HOT [Non-text portions of this...
... My DC20B has a keyer chip from an older version that was sent to me by Chuck W5USJ to see whether it solved the problem with playback of the keyer...
Information Update: Check the Photos and Files section for new uploads and be sure to post yours to share with the group. Updated DC40Kit information will be...
dc40kits@yahoogroups....
Aug 9, 2009 10:06 am
1291
Information Update: Check the Photos and Files section for new uploads and be sure to post yours to share with the group. Updated DC40Kit information will be...
dc40kits@yahoogroups....
Aug 23, 2009 10:18 am
1292
Hello Folks, I have troubles in understanding how to apply the decals. Yes there are detailed instructions, but yet am not sure if I put them right. I think...
Hi Yes, problem for me not easy ... the décalc not stick 73s jean paul F6DDV ... From: iz oos To: dc40kits@yahoogroups.com Sent: Monday, August 24, 2009 12:20...
Greetings all... I'd appreciate any tips on building/enhancing the DC40B. I think I'm going to add the multiple Freq. crystal option. Any tips on filtering...
Bill, The mechanical instructions are most important to read before doing any PCB assembly. I'd also suggest bench testing the rig outside the box first. If...
I finally got my DC40 kit playing after replacing Q9 ...one of the 2n7000 Jfets was blown! But the RX is still kinda deaf? Looks like it takes 3uV signal just...
... the 2n7000 fets are for switching tx/rx they should have no bearing on recive sensitivity, I would suggest checking the antenna connections and tunning it...
Steve, My comments are based on the DC40 being a DC40A or DC40B ... Did the tuning circuit give you a positive noise peak when you adjusted it? If not, that...
Hello all, I just completed a DC20B project and I'm getting some results that i'm not sure how to troubleshoot. After wiring up and testing everything on the...
If it was in English maybe ? Trevor ... From: darpiatt <dpiatt@...> Subject: [dc40kits] Re: all free new radio amateur hand book 2009 from F6BCU To:...
Information Update: Check the Photos and Files section for new uploads and be sure to post yours to share with the group. Updated DC40Kit information will be...
dc40kits@yahoogroups....
Sep 6, 2009 9:50 am
1307
Information Update: Check the Photos and Files section for new uploads and be sure to post yours to share with the group. Updated DC40Kit information will be...
dc40kits@yahoogroups....
Sep 6, 2009 9:50 am
1308
Hi folks, Well, here is the story. I got to the first test procedure, apply 12 volts and measure between pin 8 and 4 of the keyer chip and see if there is 5...
Darr, Something happened to or around the 5V regulator. Seems to be shorted. Hope getting that hot didn't smoke the keyer chip. Chuck Carpenter, W5USJ, Point,...
Information Update: Check the Photos and Files section for new uploads and be sure to post yours to share with the group. Updated DC40Kit information will be...
dc40kits@yahoogroups....
Sep 20, 2009 10:10 am
1311
Information Update: Check the Photos and Files section for new uploads and be sure to post yours to share with the group. Updated DC40Kit information will be...
dc40kits@yahoogroups....
Sep 20, 2009 10:10 am
1312
I just finished a DC20B about a week ago and have not been able to get the receive frequency offset under 1000Hz. After replacing C36 47pF cap with a 68pF...
Incoming messages are now moderated until further notice. The senders of the recent Face Book messages don't seem to be from group members. Looking to see how...
We had this same problem on one of the other groups awhile back. To bad they can't put their smarts to better use!!! George In a message dated 9/27/2009...
... I'll check that when I get a chance. I was able to reduce the offset with a capacitor change, though. What TX frequency are you getting from your DC20B?...
... If you were able to change the rcv frequency with a C36 cap change then it must not be the same issue I had. In my case, C36 was out of the circuit and had...
too many kits, too little time. oh well, i'm cleaning out old kits and have a DC40 and DC40A for sale. $50 for both or $30 a piece. Check or money order,...
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