[Hallicrafters] SX-100 voltages

[Gerry Steffens]

Funny you should bring up 100s, I have 5 sitting here all fired up as we
speak.

The voltages are:

-0.4 to either -3.0 or -8.0 can't tell which but I think -8.0 band 1
-0.3 to -3.0 for bands 2,4
-2.0 to -5.0 for band 3

I doubt that your 1.9 volts is causing the problem.


Gerry


Collecting & Restoring since 1959
Gerald Steffens P.E.
Oronoco, MN


-----Original Message-----
From: hallicrafters-bounces at mailman.qth.net
[mailto:hallicrafters-bounces at mailman.qth.net] On Behalf Of Waldo Magnuson
Sent: Thursday, January 13, 2005 9:10 PM
To: hallicrafters at mailman.qth.net
Cc: Waldo Magnuson
Subject: [Hallicrafters] SX-100 voltages

Hi,
    Does someone have a readable schematic for the voltages for the grid 
of V2 (6AU6 - 1st mixer).  My schematic and my manual is hard to read 
but I think it states:
-.4 to 0 v Band 1, -.3 to -3. v Band 2 & 4, and -2 to -5 v Band 3.  I'd 
like confirmation.  The cathode reads 1.9 v and the schematic calls out 
3 v.  Is that too much of a difference?  The tube seems to be cut off 
(no signal through it).  I've switched tubes with no success.
73,  Skip Magnuson  W7WGM

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