[Hallicrafters] Phil's SX-71 mods (was) RE: Sloper and SX-71 (was) Re: An AM antenna

[RJB]

Phil
thanks for the response. I saw your article "Soup up your SX-71" in which
you mentioned some mods to the 2nd IF. Two questions, if i may

1 - what exactly did you do to the cathode connection on this tube (6SK7
IIRC)?? The cathode resistor is (i think) 1K, going to a switched set of
resistors, presumably to keep gain constant from band to band. Did you
replace this with 270ohm to ground??

2 - what mods did you make to the screen supply?

3 - Did you ever check your electrode voltages?? mine are all over the map,
even after replacing all resistors and all tubular caps :(

4 - Have you had your SX-71 repainted?? Mine works well, but is ugly. (if it
had engraved lettering i would do it myself :-)

thanks in advance for any help

Bob

-----Original Message-----
From: Philip Atchley [mailto:beaconeer at elite.net]
Sent: Monday, May 03, 2004 8:27 AM
To: rjb at lynden.com
Cc: hallicrafters at mailman.qth.net
Subject: Sloper and SX-71 (was) Re: An AM antenna


Bill, Bob et al,
I too have used the Alpha Delta DX-B (60 footer) sloper antenna for a
number.....