[R-390] LW reception on R390A

[Helmut Usbeck]

Disconnect your regular antenna and attach it or your LF antenna=
 to 
test point E208 on the RF deck.  E208 is to the lower right of=
 V201, 
the RF amp.  The setup works pretty good.  If you have or can=
 build a 
LF antenna tuner it's much better.  Any of the available=
 published 
plans of converters will work.

Helm.  WB2ADT  

>Well, with a 455kc IF, you already have a "receiver" that will
>"hear" below 500kc.  :)
>
>Barry(III) - N4BUQ
>
>
>At 01:20 PM 5/2/02 -0500, Steve Goode wrote:
>>I would also be interested in any mod for below 500 kHz.  I am
>>hoping to
>>build the LF converter in the April QST.
>>----- Original Message -----
>>From: "Bruce" <bwbacon@mindspring.com>
>>>I seem to recall reading a post a long time back about a=
 simple
>>>mod to
>>>enable the '390A to hear freq's below 500kc's.
>
>
>It's not a modification, its just a trick. I can't remember the
>deatiils
>but you simply hook your antenna to one of the test points in=
 the RF
>deck
>(or maybe to the grid of one of the tubes) and bypass the RF
>amplifier
>stage.. You run the radio in the 0 Mc band and just tune down=
 below
>the
>normal 500 kc point of deafness.
>
>Take a test prod and experiment.  It's a no-cut, no -solder,
>reversible "mod".
>
>VLF converters are a whole different matter.
>
>Roy
>
>
>- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
>7130 Panorama Drive, Derwood MD 20855
>Home: 301-330-8828 Work: Voice: 301-975-3254,  Fax:=
 301-948-6213
>roy.morgan@nist.gov --
>_______________________________________________