A friend of mine, ex Telefunken design engineer, already built a class E amp around 2x8 cheap SIHP10N40D transistors at less then 1 Euro each. With 15W of drive output is 1200W. Even without predisto
On all this legal stuff. Ok a ready to use amp cant legally have more than 15 db of gain. Now how far down broken down that is, does an amp have to be, to be seen as a "KIT" From what I in the back o
W9AC nailed it. I'm pretty sure the 15 dB limit applies to kits as well. Example, Elecraft KPA500. A home brew amp does not have to stick to the 15dB limit. As for SPE/Expert, they screwed up. Why wo
Are you against capitalism in general too Kim? 73 Jim W7RY --Original Message-- From: Kim Elmore Sent: Wednesday, December 28, 2016 8:12 AM To: Amps group Subject: Re: [Amps] FCC Denies Expert Linear
If you are a Ham who wants to buy an amp with an FCC-granted waiver, re. gain do you care about the supplier's competitive advantage or just the freedom to buy what you want to use? It's not the US g
No, SPE got caught out building amplifiers for the rest of the world that do not meet the requirements for sale in the USA. Now, Expert Amplifiers wants the FCC to relieve them of the responsibility
It has NOTHING to do with freedom. One of the FCC's functions is to establish the rules of the road for radio and other communications mediums, and their function is much like establishing rules of t
On Wed,12/28/2016 4:44 PM, Joe Subich, W4TV wrote: Of course, SPE *could* design in additional negative feedback to use up some of that extra gain *and* reduce the IMD created in their dirty boxes. T
All this reminds me of a line in a movie ... ..."it's not personal, it's only business"... HI HI 73 es HNY, Dick, W1KSZ _______________________________________________ Amps mailing list Amps@contesti
What gives you the impression that SPE chose to ignore it? All of their amplifiers shipped to the US have attenuators that limit the gain to 14.5dB. - Paul ___________________________________________
Not quite true. I don't know the history of the distribution of SPE amps in NA, but just measured (with a factory-calibrated LP-100A wattmeter) 16.5 dB gain for the SPE 1K-FA that I bought from my ne
Many more had power adjustment, but just for CW, I.E. "Setting the drive level" per se. Collins S Line series, KWM-2, Yaesu FT-101 up to FT-One, etc. Most of the 1980/90's vintage were like that. Rad