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For my QDX and QCXs I use a Power Delivery capable phone charging power pack and a PD trigger set to the voltage I need. The same battery pack will deliver either 8.8 volts for my QDX or 11.7 volts

That is a starting battery, it is designed to supply a high current for a short period then be quickly recharged and is intolerant of deep discharge; a single deep discharge can do significant

Hi Paul, Yes, that battery would work, though it would not be optimum as it is not a deep-cycle battery.? Walmart does make a U1-AGM battery that is designed for the type of operation that you

Paul, It'll work but it's designed as a motor starting battery, which means it works best at high loads for short periods of time, with near-immediate recharging. So with a low discharge rate (as

Hello Bill here N3GTY Try this one much better and very lite weight https://a.co/iZekzja --

Al Holt <grovekid2@...> wrote: No, and the voltage at their inputs is around 3 volts. I hope it didn't kill anything more :) But I ordered three FST3253 (and four LM4562) to have spares, so

Don't overdo the sanding - just a slight amount to flatten the concave surface to adhere to a heatsink with some paste!

Daniel Conklin <danconklin2@...> wrote: What voltage did you supply to the QDX?

Does anybody know if this will work well for taking QRP to a picnic table , and how long it will last Operating QRP.

Tom C <mel0torme@...> wrote: Maybe a good idea would be adding a spring washer? If not overtightened it should put a reasonable pressure regardless of the expansion... Try it -- if it works,

Tom G <tomscraiglistemail@...> wrote: I killed my finals with 13.8 V. I switched to 12.0 V and didn't have any more problems (at least not with the finals).

Adam, Good work! Do you still have the caps shorted, C71-C74? IMO, that would have to be a pretty good spike to travel that far through the chain to not messed something else up. Surge suppression

Satellite ops have been playing in walmart parking lots for years https://wmplota.org/

Wainwrights on the air. Similar to SOTA but for The 214 summits listed in Wainwright's guides. It's been active since 2009 so has 13 years head start on you. When I visit the epc.eu page I see a

David wrote: [snip] My ex-wife used to complain about how quickly I could go to sleep. But it was simple -- years of scuba diving, hundreds of dives, a week under water (170 hours +, last time I

And here is the QDX transmitting FST4W-1800: Note that the tone spacing is only *0.089 Hz* , and the QDX is tracking these accurately and cleanly.? Pretty amazing! But there does remain a frequency

Yes, according to my Elecraft W1 wattmeter, there is no change, all bands still report about 5W. BTW, I built the 12V version.

Al Holt <grovekid2@...> wrote: You're right. On 40m there's 3.694 V there, on 20m (BPF 1) 0.348 V. Would T2 be affected with the band selection? It shouldn't... I checked, it seems fine.

All of our Waffle House have limited parking :-( Walmarts do not have that problem /-) -- *73's Pat N5VMO*

Here comes the "Awful Waffle Kilo award" and all the petty bickering from the "waffle activators" and "waffle hunters". What if I identify as French toast instead? That should fire off an epic