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Re: No new group please!
Take a look at how the Elecraft message board is organized.? It's all one group but there are several sub-groups suck as K3, K2, QRO, for different products.? Works great. 73,Bill NZ0T
By nz0tham@... · #20789 ·
Re: Difficulty winding and installing transformer T1 #qcx
It's easy to always a toroid in the same sense.? I always stick the wire through the toroid towards me and then start winding to the left side of that first wire.? On could do it the other way
By nz0tham@... · #20788 ·
Re: QCX Blank LCD
Possibly you haven¡¯t installed the microcontroller correctly. Check for bent pins and correct orientation. Regards, Steve
By Stephen Farthing G0XAR JO92ON97 · #20787 ·
Re: QCX constant keying
If it's still keying with the pin lifted then the ic leg input is likely damaged and a new processor ic will be required.
By David Rushworth · #20786 ·
Re: U3s first wspr
Since you've never published your callsign - how would we know ?
By - Andy - · #20785 ·
Re: QCX Blank LCD
Hi Richard, You have been unlucky if you have damaged the 7805 because it has internal short circuit protection. Does look like it is though! 73 Roger G4IUP
By Roger G4IUP · #20784 ·
Re: QCX Blank LCD
I just ordered another 7805. To be continued¡­ Richard NS3C
By Richard Hall NS3C · #20783 ·
Re: QCX Blank LCD
Yes, I checked and reflowed the solders on both the PCB and the LCD. They seem OK. New problem: I had 2.8 volts between the pins of the regulator until I slipped and shorted them. That let a little
By Richard Hall NS3C · #20782 ·
Re: QCX Blank LCD
Hi Bill The backlight is powered via a series resistor from 12V. So as to not increase the power dissipation of the 7805 regulator. So your original post is still valid 73 Hans G0UPL
By Hans Summers · #20781 ·
Re: QCX Blank LCD
OOOOPS!? I just noticed you have nearly 5V at the backlight, so the regulator is probably working OK.? Check the solder connection of both the connector on the PCB and on the LCD module.? All OK??
By w2eb@... · #20780 ·
Re: QCX Blank LCD
Pin 2 of the LCD should have +5V on it.? Since it isn't there, the next logical place to look would be at the output of the +5V regulator.? With the numbers on the regulator facing you, what do you
By w2eb@... · #20779 ·
Re: U3s first wspr
I have one of each, as the 25-turn is proper for use with the 5W PA kit, and the bifilar is optimum for other use.? My intentions were to use one U3S for experimenting with the transistors and the
By TrueBlue · #20778 ·
Re: New FB Group
I have not seens anyone mentioned it but there is already an "official" qrp-labs facebook channel. https://www.facebook.com/QRPlabs/
By Mikael Dagman - SA6BSS · #20777 ·
Re: Taking another stab at getting my 80m QCX up and running
The Keysight meter and old GenRad that I have always seem to match within reason. I don't know how either work but they are lab quality meters.? Same with the resistance measurement.? ?I think a
By Michael Lloyd · #20776 ·
QCX Blank LCD
Hello, I just built the 80 meter version of the QCX and have a blank LCD: no blocks, just the backlight. With 12.7 volts input I see these voltages at the LCD pins: 1 0 2 2.08 3 2.08 (varies with R47
By Richard Hall NS3C · #20775 ·
Re: No new group please!
Will the new group lose content in the same way that messages eventually disappear from other Facebook groups?? If so, there is a loss of valuable accumulated knowledge that does not happen with
By Michael O'Bannon · #20773 ·
Re: No new group please!
Group.io is great via the GUI. And neither do you have to sell your soul to Zuckerburg who will turn you into a marketable commodity whilst expecting YOU to prove who you are just to join in. If I
By - Andy - · #20772 ·
Re: No new group please!
Erm, so you 've not used the groups.io GUI then ? Here we post photo's, view message threads, and even upload binary files in a repository. You should try it sometime ;-) 73 de Andy
By - Andy - · #20771 ·
Re: No new group please!
Nobody is trying to "split" the present group, only trying to add a new more modern venue for fans and QRP enthusiasts.
By John Mazzone · #20770 ·
Re: New FB Group
Gentleman..... Go with the flow. An act of murder has not been committed, LOL. Dont like the group?.... Then dont join.. If there is no activity on the group it will die a lonely death. On the other
By John Mazzone · #20769 ·