Kinda OT: Swan Mark I Linear expected output on 4-400A's in G-G?

[Bob, WB2UJD]

In a message dated 5/18/02 7:31:18 PM Eastern Daylight Time, k4kgw at attbi.com
writes:


> First question:  How are you able to use the 4-400, which is a tetrode, in
> place
> of the 3-400Z, which is a triode?  The 4-400 socket diagram is 4BK, while
> the
> 3-400Z socket diagram is Fig. 3 (in the ARRL Handbook tube section).

Easy!  Just plug them into the socket.  If you look at the bases, the 3 grid
pins on the 3-500 are the same as on the 4-400, just that 2 are used for one
grid and 1 for the other in the case of the 4-400.

OK then, follow-up question:  How much could I expect to get from a pair of
3-500z's in the same circuit?  If it is that much more, I should consider
breaking down and getting some of these instead of the 4-400A's.

Where did you get the numbers you quoted for the 4-400A in G-G?  I have never
seen that anywhere.

Thanks for the response.

Bob, WB2UJD

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