[R-390] Sideband slicer

[Roy Morgan]

At 01:55 PM 1/19/2006, Larry Strong wrote:
>Could someone explain how to hook up a Model A Central Electronics 
>sideband slicer with a R390A or R388?


Larry,

The R-390A has an IF of 455 kc. The Model A Sideband Slicer had an IF of 
455 KC more or less, so it will work.

The R-388 has an IF of 500 KC so the slicer may not work. You would have to 
change the frequency of the oscillator in the Slicer. I don't know if this 
is easily done or not.

>Since they have IF's out the back to you have to some wiring changes?

No, the IF Output of the R-390A is all you need to run the Slicer. 
HOWEVER.. the slicer may not be meant for the relatively high signal level 
provided by the receiver. You'll have to try it out.  Some slicers were 
equipped with an IF Preamplifier. If I remember right, this is a little 
chassis with one tube that plugs onto the back of the slicer.

If I remember right, the slider audio is routed back to the radio and 
connected to the audio gain pot or some such thing. I suggest you use an 
external amplifier and speaker for that. OR: you can run the audio back to 
the diode load terminals on the R-390A.

Do you have a manual for the slicer? I think BAMA has it.

Roy

- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
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