[Hallicrafters] SX-110/SX-111 Question

[Larry Keith]

Gary,

You just need an updated schematic..  I have a "later" edition manual 
that shows both the three-connection phone jack and the 3.9K, 1W, 
resistor coming from the 500 ohm output to ground.

Other changes to note are:

A 1 MOhm feedback resistor is added from the plate of the 6K6-GT to the 
junction of C46 and plate lead from the Audio Amp.

The cathode bias resistor value on the 6K6 is changed to 470 ohms.

R25 value is changed to 6200 ohms.

That's all of the changes that I have found, so far..

73,

Larry
KQ4BY

Gary H. Harmon Jr. wrote:
> I have a SX-110 which has the same PHONES circuit as the SX-111 (3
> connection socket in the 110 vs. 5 connection in the 111.  Was this possibly
> a change late in the 110 life as the 111 was coming online?
> 
> Also, my 110 has a 3.9K ohm resistor from the 500 ohm speaker connection to
> ground that does not show up on the schematic.
> 
> Thoughts on either please.
> 
> 73, gary
> 
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