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Dear Rick, Thanks for the comments on the QRP Labs Signal Generator.?? I am going to incorporate them into mine.? Your email is giving me the boost to get it done.?? It is a great unit. this

Alan G4ZFQ <alan4alan@...> wrote: I guess you mean "in phase"? If they're out of phase, it should measure around 5 volts AC. One handy (footy?) thing I'm using is a foot switch. It connects

Kelly Jack <kellyjack1968@...> wrote: Most probably you fried the finals (and maybe the driver chip). It's cheap to repair, you could give it a try. Have you tried the QCX

Protection-wise, I think the best bet is having a current limiting power supply set up for something like 1.2A. Right now I'm using a buck converter to knock a beefy 12V supply down to 9V. But, I

Rich, Forget the string. Ive been clamping toroids in my hobby vise for years and never cracked any. I see your vise has rubber protectors. Should be very safe. Dave K8WPE David J. Wilcox’s iPad

Hi all Who's the stateside coax vendor you'd use based on service, quality, and price, in no particular order? This would be for non-QRO applications. Thanks in advance, and 73 Jim N6OTQ

Hi Don Yes, we could do that... 73 Hans G0UPL http://qrp-labs.com https://www.buymeacoffee.com/g0upl wrote:

In building a 20m Mini I started with the BPF so that it could be isolated for measurement using a NanoVNA. The leads of T1 used for measurement were not soldered to the board. More pictures are

Hi Rick, I also saw highly variable output level on my SigGen with 6 LPF filter board combo, depending on the frequency. I tried using a single BS170 buffer, but still got quite a variation in output

Rick Williams - VE7TK <ve7tk@...> added folder */Signal Generator* --- The following files and folders have been uploaded to the Files area of the [email protected] group. * /Signal

With ZL2PD Andrew's permission, I have uploaded his Variable Attenuator file to the Signal Generator folder in the files section. -- 73, Rick VE7TK Website: https://www.ve7tk.epizy.com/

FYI in the current schematic J3 and J4 are reversed. J4 is the 12 VDC input.on the PCB. -- 73, Rick VE7TK Website: https://www.ve7tk.epizy.com/

I couldn't get it to work 5 minutes ago BUT it looks like the site is back! -- 73, Rick VE7TK Website: https://www.ve7tk.epizy.com/

The website link for ZL2PD loads very slowly, but eventually worked for me. See his schematic, attached. 73, Gregg W7GRM

Hans, will you be offering a kit of components to convert a low-band QDX kit for high-band use? 73, Don N2VGU

That looks like an excellent piece of work. Unfortunately I couldn't get the ZL2PD website to work. Roy WA0YMH [email protected]> wrote:

My QDX is dead. No transmit and no receive.? I had a problem with my coax connector at the antenna and it was seeing high SWR (about SWR 5) which is high but not that high. Built for 12v operation I

Thank you to everybody for this *GREAT tip* on winding toroids:? the *crochet hook* ! Doing the wind with a crochet hook is very convenient, no fumbling, no wire kinking at all, and it's fast so you

I've just completed some mods to the QRP-Labs HF SigGen kit. They include a simple buffer/impedance matching mod (suggest by ZL1UJG) and the addition of a variable attenuator. The attenuator, designed

I use a couple old toroids that I pulled out of an old switcher power supply. I have them from the open wire to ground all the time. They seem invisible to RF but a dead short to static voltage. They