|[AMRadio] SP 600 question|
rbethman at comcast.net
Tue Sep 15 15:10:40 EDT 2015
On 9/15/2015 3:00 PM, w5jo at brightok.net wrote:
> I wonder about the first RF amp. tube in this receiver. What I would
> like to know is what the value of the screen resistor is in the 1st.
> RF and the value of the resistor in the plate lead, if any. Also the
> recommended voltages on the plate and screen of that tube.
These are for the Northern Radio SP-600 J [No X]
Screen Resistor R3 - 33k
R4 - 1k
Plate has an L7 - 192uH
R5 - 510
R6 - 1k
Regards, Bob - N0DGN
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