Re: QCX kit -- Use of IC Sockets
But there are no sockets for surface mount devices! To replace SMD ICs I cut the pins and trash the chip. Then clean the pads to replace the device. But there are adapter boards, mount the SMD chip on
By
M0RON
·
#31177
·
|
Re: Power supply for clock kit
#clock
#supply
thanks for the suggestions everyone.? I've also had a suggestion for the Traco Power ESP-18-05sn from Mike G8NXD.? That or the Jameco, or something similar look like good suggestions as well. Thanks
By
Dave Capstick
·
#31176
·
|
Re: Power supply for clock kit
#clock
#supply
Hi Dave. I used to get mine from Maplin 2.1 x 5.5mm plug, socket to match...but it really is up to you. Use what you prefer, or have handy. Roger --- ** Roger Hill ** Links: ------
By
Roger Hill
·
#31175
·
|
Re: Power supply for clock kit
#clock
#supply
hi roger, that sounds like a good suggestion. Do you have a link to a suitable converter from the RPi supply? - i have a few of those, so copuld make use of them to power the clock Thanks Dave
By
Dave Capstick
·
#31174
·
|
Re: Power supply for clock kit
#clock
#supply
Another idea is to power it from the shack power supply via a cheap 12v to 5v converter. I have mine permanently wired this way along with a sensor that shows the room temperature (T1). T2 shows the
By
Nigel Dudley
·
#31173
·
|
Re: QCX kit -- Use of IC Sockets
"but easing them out will always reveal the folded pin." Not out, but up enough to see the problem. Take the chip out and you risk bending a pin when you reinsert it, creating the problem you were
By
Alan Richmond
·
#31172
·
|
Re: Should we have a QCX QSO Party?
#qcx
I¡¯m in as well, pending my work schedule. I¡¯m still learning my Morse code, so this will be a good exercise =)
By
Michael Sharp <nexxusix@...>
·
#31171
·
|
Re: Multi turn resisters 20K included with kit
Hi Andrew Yes, you are correct... you can do it that way. 73 Hans G0UPL http://qrp-labs.com >
By
Hans Summers
·
#31170
·
|
QCX Enclosure update
Hi all All pending orders of QCX enclosure kits are cleared. Going forward, QRP Labs shop will not be stocking the QCX enclosure kit. You can still get the QCX enclosure kit from the
By
Hans Summers
·
#31169
·
|
Re: Should we have a QCX QSO Party?
#qcx
I'm still learning CW, but I'm in if you're all patient with me lol... [email protected]> wrote:
By
John Overbaugh
·
#31168
·
|
Re: QCX kit -- Use of IC Sockets
I use Mil-Max sockets. They are more expensive but worth the price. But there are no sockets for surface mount devices! To replace SMD ICs I cut the pins and trash the chip. Then clean the pads to
By
Bob Macklin <macklinbob@...>
·
#31167
·
|
Re: QCX kit -- Use of IC Sockets
"Hi Al, I used sockets on mine, mainly because I had to cut out one of the chips after a failure and didn't want to have to do that again! I haven't noticed any extra noise etc. I think that Hans was
By
Ken Bell
·
#31166
·
|
Re: QCX kit -- Use of IC Sockets
There is a failure mode with sockets that may be hard to find if you don¡¯t know about it. It happens when you insert slightly bent pins into the socket. Instead of entering the female part of the
By
Alan <g8lco1@...>
·
#31165
·
|
Re: Replacement part for IC4
#fst3253
Pretty good price Jim, I paid 53.5 cents each, but $8 in shipping from Mouser. Course, I bought some other bits-n-bobs that were not available on the Parts Place.? I need to get my browser bookmarks
By
Wes WB7BR
·
#31164
·
|
Re: Should we have a QCX QSO Party?
#qcx
This would be fun; I'm in too!? de KO8S
By
Karl Schwab <ktschwab@...>
·
#31163
·
|
Re: Multi turn resisters 20K included with kit
Hello Hans. I am a little confused as to the modifications for 20K vs 50K pots. The value of R14( which will be replaced with a 15K) is 10K. Why would I need to swap R21 (7.5K) with R49(10K) when I am
By
ANDREW STEEN
·
#31162
·
|
Re: 2 x 20m WSPR/QRSS balloons launched back to back
I am relieved...new telemetry just in that shows 9580m altitude...this is good and about where it was predicted to be...and then some. Also...Hans special telemetry software for balloons -
By
Jim .....
·
#31161
·
|
Re: Power supply for clock kit
#clock
#supply
Hi Dave, I've been using TDK/Lambda supplies.? Small size, excellent regulation and low/no noise.? Mains voltage, 100 - 240 VAC. Around 18 dollars US from Newark (Farnell in your case I guess).?
By
ewsjts@...
·
#31160
·
|
Re: 2 x 20m WSPR/QRSS balloons launched back to back
2 spots in and it is indeed GN44 grid. Sadly,altitudes are showing 6600m...but DFCW now showing what looks like 9200m or so. Need more WSPR decodes. Got a pretty good lock on both transmitters now on
By
Jim .....
·
#31159
·
|
Re: Replacement part for IC4
#fst3253
Hi, Wes Found it on thepartsplace.k5nwa.com for 70 cents. Jim W4JED
By
James Daldry W4JED
·
#31158
·
|