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....
Oct 5, 2008 4:27 pm
978
Finished a DC40 assembled with a 5-crystal VXO, PK-DC Keyer and a mini audio Amplifier. All enclosed in a Block diagram of the mods and a picture of the...
Hello all! Nearly finish my dc40 kit, but I am not sure to install the T2 bi filler wound transformer. As in the picture in the Review W5USJ 2 April '06 of the...
Jogeir, The windings will be red and green on each end when you first wind the transformer. No way around that if you wind two different wires together. You...
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....
Oct 19, 2008 3:59 pm
983
I believe I read an article about working with Surface Mount Technology from a link that appeared on this site not too long ago. It even told where one could...
http://www.zianet.com/erg/SMT_Soldering.html Ed/ke7feg ....Hurry up November...enough heat so far!! Did I mention, 2/23/07 the FCC dropped all cw (AKA Morse...
... at ... as ... the ... so ... but ... two ... I experienced a similar problem with the unit not going into the tune mode. I found out that if I kept...
First, the DC40 is an amazing little xcvr. I had flash backs of my Heathkit days except now I had to use a magnifying glass. The problem that I am having is...
Hi Don It usually won't start (xmit or rcv) until I touch a scope probe to R12 or the emitter of Q1. Then the oscillator starts and works fine. I have tried 9,...
The two feedback capacitors in the kit are marginally small. In my DC-40 I changed C31 to 200 pf and C33 to 68 pf. See my notes posted in the files for the...
Don, If you have a DC40 and not a DC40A, the original capacitors for the oscillator feedback divider were 22pF. They were changed to 47pF. The DC40A had a few...
Thanks for all the help. I found the problem. On page 10 of the manual it says to install two 47pf caps (C31 & C33) for 40 meters. This is what I did. I later...
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....
Nov 2, 2008 3:26 pm
992
I have wanted a DC40 for close to a year and would pull the trigger on one right now if they were in stock.. What gives!! Jeremy KB1PYW [Non-text portions of...
I'll sell you mine if you really want one. bob wb7dmx From: Jeremy Chase Sent: Friday, November 07, 2008 10:38 PM To: dc40kits@yahoogroups.com Subject:...
Jeremy, I think I'd be inclined to wait and see what the design changes will bring. Should be interesting. Hope it's soon. ... Chuck Carpenter, W5USJ, Point,...
One thing that I noticed with the DC-40A is the need for an audio filter. I found that there is a DSP filter with the program CW GET. You can narrow the...
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....
Nov 16, 2008 3:42 pm
998
Do we have any idea when the new kit will be available? ... -- Jeremy Chase http://jeremychase.net [Non-text portions of this message have been removed]...
I've lost or misplaced the 0.1uF cap for C24 on my DC40A rig. I ended up with an extra 330pF and re-checked all others caps for correct installation. I'd...
... QRPkits were very helpful in sending me a repalcement. The cap that you need can probably be found at Radio Shack and would save on the shipping cost and...
... Hello, I am 99% complete with the building of my first kit - a NorCal 40A transceiver. I would be 100% complete except that I think I found some assembly...
... Q10 should be the JFET (2N3819). It was labeled incorrectly on the board. The schematic confirms this. R22 should be 470 ohms. A misprint in the...
Don, Thank you for the reply. I agree with everything you wrote except for the R30. I have looked up and down my board several times and can not find where...
... of the letters "DC RIG" "QRP KITS". ... for the ... find ... 40yahoogroups.com>, "Michael ... instructions. ... a ... getting ... check my ... 40A ... ...
I'm a little confused on some locations of components. I think I know where the final pieces are supposed to go and I've already discovered the errors in the...
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