I have an old QST article (maybe it was HRM) from the 70's called 'The Ecology Linear amplifier' where the author did just what you're thinking about. A single 4-1000 feeding 5 or 6 separate Pi tank
I remember that article well! The thing used two vacuum variables on each pi network, can you IMAGINE the cost today! It was in ham radio magazine, about 71-72 I think. Mark WB8JKR __________________
-- Why not switch in fixed values of C in place of a plate tuning cap and use a roller inductor for the "plate tune". Come to think of it, Henry radio did that a decade or two ago. 73, Bob, W5AH -- F
On Mon, 02 Nov 1998 05:18:12 EST wb8jkr@juno.com (Mark S Graalman) writes: Break... Break... The article is in March 1972 Ham Radio pp.6-15. It is actually not as absurd as it might seem in dim memor
This is a multi-part message in MIME format. --=_NextPart_000_01BDFEA7.5ACB2C20 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hi all - let's start a new discussion topi
Hi John et all -- On Fri, 23 Oct 1998 17:05:37 +0200 John Fielding <johnf@futurenet.co.za> wrote: That is a very nice tube! Excused for the lack of handles! Quite commonly used among 2m moonbounce op
for each Hello John, Einar, and group, This method is used in the "Aerocom" 6 channel 1kW SSB/CW HF transmitter. The exciter drove the 4CX1500B tetrode with 3 watts in a passive grid circuit with bro
Seems to me that Henry Amplifiers, at least in the Ultra unit I now have on order, solved this feature: that is, preset tuning on many bands. In a nice desk top and compact way; within the desk top
The description of the "ultimate amp" with separate pi-networks for each band reminds me of an amp that my friend N5DX (SK) picked up at the Delta Division convention one year back in the late sevent