[Elecraft] Amp power per $$ spreadsheet download

[Merv Schweigert]

Way to go Jim,
I was thinking the same but you will find that the dollar per watt etc 
is actually
way off,  the guys who buy the "big" amps are running them close to their
limits,  The larger amps are even at 5KW out and more,  so you have to
figure that power per dollar when looking at an investment,
Those type amps are not built or bought for "headroom" but to gain 3DB 
on the
guy running a 1500 watt amp..

Im sure you can find quite a number of them in every state,  they are 
prolific out
here.   I know my antenna is working when I can compete with some of
the stations out here.  because I am 3db or more lower running 1500 output.

73 Merv K9FD/KH6

> On Sat,4/25/2015 7:35 PM, Phil Wheeler wrote:
>> Good job, Nick.  I didn't realize my AL-811H was so cost effective. 
>> Sure is a royal PITA to use, though. I'll give it away to someone 
>> local who will use it -- no way I will deal with shipping the beast. 
>
> I modified the spreadsheet a bit and re-sorted it. First, since we 
> here in the US are permitted only 1,500W, I set max power for those 
> amps with higher power ratings to that value. Second, just as Nick has 
> included his used Alpha 99, I added my used Ten Tec Titan 425s.
>
> k9yc.com/PwrAmpdB.png
>
> There are many features and properties of power amps that go far 
> beyond pure dB per dollar.  some examples:
>
> The ACOM 1010 is a reasonably compact competitor to the KPA500, but it 
> doesn't cover 6M. I bought one used from K6SRZ (to have another amp 
> for CQP), who bought a KPA500 just to get 6M. Also, my occupied 
> bandwidth tests show that the KPA500 is a bit cleaner than that ACOM 
> 1010. And the 1010 is a single-voltage amp. It must be rewired to 
> change it. The KPA500 can be switched by removing, rotating, and 
> reinserting the fuse block built into the power plug.
>
> The ACOM 1000 does cover 6M. Both it and the 1010 have manual antenna 
> tuners built in. Some of these amplifiers have built-in tuners, some 
> of those tuners are automatic or have memories. Some of these amps are 
> much better built than others. My Ten Tec Titans use high quality 
> vacuum relays with logic to prevent hot-switching, as do the Alphas. 
> The Ameritron amps I've seen use much cheaper open-frame relays, so 
> their switching is much slower.
>
> My Titans are quite clean -- P3 measurements of both the KPA500 and 
> the Titan look exactly like the K3 at the drive level required for 
> rated power. But the Titans, like the lower cost ACOMs, are "manual 
> everything.
>
> 73, Jim K9YC
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