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Here are results I found:? 11.4VDC supply, 250 mW; 12.4 VDC, 350 mW; 15.7 VDC; 450 mW. Curt

I figured the Audio amp IC was the limiting factor.? The electrolytics are 35 V. The 1/2 pint pixie clone uses discrete components and no ICs, maximum spec is 20 VDC.? And the Pititico was fooling

Curt, Probably the LM-386-? Typically, the max voltage is 14Vdc on board (13.8 charged auto battery). Emacs! The version in the one I built recently is an LM386N-4 The transistors are good for

What is the maximum supply voltage for Sprite n Lil Squall before smoke comes out?? What is the limiting component?? Using 2x9V batteries in series would surely be nice. 72, Curt KB5JO

Colin, They opened everything up here too, to their regret.? People started acting as if the virus was gone but it was just waiting to teach an unhappy lesson.? We have gone back to restrictions

Firstly, sorry to hear and your son and his family, sending best wishes. I deliver vegetables to between 50 and 70 households a week, it is a worry, but thankfully the virus appears to be in retreat

Colin, I haven’t used the Sprite in awhile. Made a detour breadboarding a 1 transistor transceiver called a Pititico, invented by an op n Brazil. It works pretty well, especially since it is

Curt - anymore adventures with the Sprite recently? I have been building a QRP Labs 50 watts class C amp for 20m. I realised that I don't really use my QCX 30 so I'm swapping it over to 20m to drive

Rex and the gangue, Lobstercon 2020 doesn’t look like a good place to be for us. Too many possibilities for interaction, not only with our Lobstercon group, but other campers who may not have

Thanks for passing on the information Chuck. I have some T30 cores on order and some 820pF kemet gold max's turned up in the mail today. I'm currently finishing off the case for a home made CW

Another archive find. Saved as "Improved" 20m BPF.. It looks really good as an Elsie model, but no much with the VNA Emacs! The Elsie model parts are 162nH/800pf, 3.9uH-33pF,

Lobster Chomping Fans, Over the last few weeks, I've had several conversations with Mike @ TPB&C and as of today, Lobsteron2020! is ON! TPB&C opened for Maine residents on Memorial Day Weekend. As

Curt - All noted. I have some 220pF caps too, so could try 220+270 to give ~490pf. I switched the Sprite on again this afternoon and there was no BCI, I guess Radio Romania International (yes, seems

Thanks for the offer of parts Chuck. I considered making a parallel capacitor but figured that the value of each individual capacitor would need to be fairly close together in value. I do have 330 and

Colin, I am sure 2x270pF (540pF) will work just fine.? Anything marked 510 isn't going to be 510 anyway.? You can use the toroids in the picture for the BPF, mine uses 9 turns on 37-6 cores.? You

Curt, I did this as an update to the user guide July 2017. Pretty close to the version with the VNA test fixture. The Elsie model is also dated 7/2017. Emacs! The 250 pF capacitors don't seem to

Chuck, Didn't your recent work with the NanoVNA show best performance using? parallel inductances of 160 nH, parallel cap of 800 pF, series inductance 3.9 uH, series cap of 33 pF? 72, Curt KB5JO

Colin, I used 330pF and 180pF for the 510. The 240 nH 8t on T30-6 and the 4.7uH I filled a T30-2 up with #26 then overlapped about 5 turns more. The 47u is a 10% but the filter came out quite close

Curt, I have just test driven the Sea Sprite 20, it looks as though I have further work to do. I was getting very strong BCI. The station was identifying a "Radio Armenia International transmitting

Colin, Beautiful! You do nice work!? Fast too!? I still need to print out the wrapper for mine several years after building it.? Wish we could QSO 2xSprite but likelyhood of that for awhile is