Strange, I dont see that. The gain is "pritty much" the same
160 - 15 m with my 4-1000A´s, dont run them on 10.
73, Jim SM2EKM
PS: I agree with Tom/Phil that these days there are much better
tubes around, I would never pick 4 by 1´s these days for an amp.
-----------------------------------------
I understand what Eimac's numbers say. Believe me, I tried for them
when
building my amp. I've never seen that kind of gain. I've asked others
who
have built 4-1000A's as well and they haven't either. I will say the
tube
has a lot more gain at lower frequencies. On 80M, I can drive mine with
about 50 Watts to legal limit. On 15M where I am least efficient, my
drive
is nearly 100 W.
Are there more efficient tank circuits than mine? Probably. That's
why I
suggested folks not use the B&W coil/switch combination as the coil
inductances aren't anywhere near what is needed in the 4-1K.
>
>
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