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Re: LF: SAQ

from [Alex Deligiannis] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: SAQ
From: Alex Deligiannis <[email protected]>
Date: Mon, 02 Jul 2007 11:26:44 +0300
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In-reply-to: <[email protected]>
References: <001901c7bbbc$c235cce0$f2407ad5@w4o8m9> <[email protected]> <[email protected]>
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M. J. Powell wrote:
In message <[email protected]>, Alex Deligiannis <[email protected]> writes 


SAQ was -63 DB key down

- 81 to -83 DB key up ( leakage)

static noise from -90 to -82 DB on SPM-12 with 31m wire + 6SN7 CF



A 6SN7 !  Hooray!

Mike

G3IJE
Yes an old double triode in cathode follower configuration( the two triodes in parallel Ia+ 18 mA) to convert the high impedance of the wire antenna to 75 ohms and to isolate the receiving equipment. A horn arestor at the input of the amplifier regularly sparks during thunderstorms but I continue to be QRV something I can't do with modern fets (J310, CP666).... 

73's
Alex
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