Here, the 15 uh safety choke is installed across the ceramic vac load cap on the output side. This DC grounds the entire PI output tank circuit at all times. IF any of the 4 x plate block caps ever f
For sure the stub (looking like a short to even harmonics) works best when combined with some series inductance to work against. Hopefully the load cap is already a low impedance to harmonics so the
The person posting all of the links to this mystery project is not the same as the builder. Not sure why the poster is doing all of the posting? 73, Jim W7RY On 11/24/2022 4:35 PM, Steve Thompson wro
On 11/24/2022 2:35 PM, Steve Thompson wrote: For sure the stub (looking like a short to even harmonics) works best when combined with some series inductance to work against. Hopefully the load cap is
The first article that Jim posted below suggests running TLW. I've been using TLW for years, but recently when I tried to run it for something I was doing at work, I discovered it no longer works on
Hi Mike, It runs on my Win10 Pro-64bit system. 73, Jim _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
Yeah, I just check my other Windows 10 desktop and it runs fine there. Both are running the 64 bit professional version. I think the problem may have something to do with the display scaling on the m
<The person posting all of the links to this mystery project is not the <same as the builder. <Not sure why the poster is doing all of the posting? <73, Jim W7RY I designed the RF deck. I had to rede
Thank you for doing this. I find both video and your emails informative. jeff, wa1hco _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com
Yes, me too but I just can't get my head around that piece of bent copper strip being sufficient inductance for 6m. I have a bigger coil in my 2m amp and my 6m amp has quite a few turns. 73 and thank
<Yes, me too but I just can't get my head around that piece of bent <copper strip being sufficient inductance for 6m. <I have a bigger coil in my 2m amp and my 6m amp has quite a few turns. <73 and t
With smaller vacuum caps, closer to the grid and only 2" separation between them, Q could be much lower and more L for a proper coil might be used. 73 Peter <I have a bigger coil in my 2m amp and my
Good onya Jim. Thanks for that. It's coming along nicely. It'll be fun to see it producing the predicted goods. I've got wood already. 73, Alek. <Yes, me too but I just can't get my head around that
<With smaller vacuum caps, closer to the grid and only 2" separation between <them, Q could be much lower and more L for a proper coil might be used. <73 <Peter Q= 21.5 C1= 6.9 pf L= .22 uh C2 = 237
I know the BBC video on Youtube. A Q of 22.5 or 20 is not necessary unless the lead length to the tune cap is too long and stray C too high. Here I would use a small vacuum variable with minimum C of
<A Q of 22.5 or 20 is not necessary unless the lead length to the tune cap is <too long and stray C too high. <Here I would use a small vacuum variable with minimum C of 2-3pf, mounted <for minimum s