[Hallicrafters] SR-400 problem

[Jack Schrader]

Sensitivity is the same on 15 & 20m. The 15 ohm resistor is ~16 ohms

----- Original Message ----- 
From: "james.liles" <james.liles at comcast.net>
To: <hallicrafters at mailman.qth.net>
Sent: Tuesday, September 22, 2009 5:50 PM
Subject: [Hallicrafters] SR-400 problem


> Hi Jack:
> Is the radio as sensitive in receive mode on 14 MC as 21 Mc?  If not,
> replace R160 --- it's always 50% to 200% high.  It's a 15 ohm resistor 
> used
> to reduce the gain on the 14 Mc band for reasons too lengthy to key up.
> Don't short around it.  If that doesn't fix it, do the 20 Meter RF
> alignment.  Check the Het osc for 20.5 Mc output as per manual and let us
> know what you find.  Kindest regards Jim K9AXN
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