开云体育

no square in the equation... C = k * ( area/distance) k is the factor for insulator dielectric factor () is the ratio of the plate area divided by the distance between plates denny equation.

Hello, Jim. == In a VHF parasitic suppressor, when one sees obliteration, it usually means VHF oscillation. The goals of a VHF parasitic suppressor are to build one with a low VHF-Q that won't

Jim, If you think you need a B- fuse, put a 500 ohm 10-25 watt resistor across the fuse incase it opens. You should also have a 100-200 Ohm 25 watt B- lead to ground in the power supply and the 1 ohm

Im working on fixing up a L-4B, it has fried resistors in the supressors. They use 3 x 15 ohms but I have none in my junkbox however I have plenty of 10 ohm Rs, will that do? 3 x 10 ohm Rs? It doesnt

Gent's Check this out..... plus it's an interesting site worth bookmarking. http://www.pwrsource.com/196.html Then, after u have added it to ur shopping buggy.... all u gotta do is get ur local power

was ## I USED to own a FL-2100B new.. back in 1977. It did not have 160m in it. The xfmr ran hot, with just the fil + fan + hv on. Turns out they all do. [xfmr was a combo plate xfmr + fil xfmr] ###

The 350 V rating on 3 watt 100 k MOF resistor's on digikey's site does not indicate if this is ac or dc.. I'm assuming it's AC RMS.... if so... the DC V rating should be 495 V ??? On a similar note

something that thoriated-tungsten filament tubes do not need because their emissive layer (di-tungsten carbide / W^2C) can not be damaged by too much cathode current - as is the case with oxide

wrote: on and as amp. ### It does appear to be a rehash of the 99 Bill. Interesting, they only ever built 1500 x 87-A's in 15 yrs between 1990 and 2005... 100 per yr. Notice they say vac

Dear All, I have a Yaesu FL 2100z. I have had it for about 6 months and all though I do not use it very much it is nice for contests. I went onto cqww and decided to enter a topband entry. When i

To all, Just wanted to introduced myself. I am a budding ham and have passed element 2 and 3 as to date. Still working on the element 1 exam but hope to pass it in a couple of weeks. I have all

Does anyone have any experience with the new Alpha 8100? Pickings on the website are pretty slim. The link to the manual is not working and all I can find is a one page brochure. Is it in production?

However, during the 9-years when Bill Fisher, W4AN, was among the living, AMPS did a fairly good job of providing a venue where old farts could pass on what we knew to the new crew. cheerz R L

wrote: it....

ohm 25 all be able to withstand the full anode V. This is why Henry Radio amplifiers need circuit improvements before they are fired up -- sometimes quite literally. ### Point well taken !! I drew it

Good to be HERE.

ORIGINAL MESSAGE: wrote: ------------ REPLY FOLLOWS ------------ The plural of typo is typos. Sorry, couldn't resist. :-) Bill, W6WRT

So, is the equation wrong? Jim's answer implies an inverse square equation. -J

Not only that, but the filament transformer must to be able to withstand the full anode V. This is why Henry Radio amplifiers need circuit improvements before they are fired up -- sometimes quite