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The 47 ohm resistor is part of a factory mod. The "technical bulletins" for the factory mods are shown here.

http://www.cbtricks.com/radios/cobra/139xlr/index.htm

The 47 ohm resistor and the caps are not shown in sams #127 because that volume was published before the service bulletins were issued. The bulletins call for the final bias to set at 15 ma rather that the 70 ma called for in the sams #127 alignment. For more info on this, check out this site.

http://unit399.wixsite.com/858ssb.

Good luck. 73s.

- 399

[QUOTE="unit_399, post: 584679, member: 7311"] The 47 ohm resistor is part of a factory mod. The "technical bulletins" for the factory mods are shown here. [URL]http://www.cbtricks.com/radios/cobra/139xlr/index.htm[/URL] The 47 ohm resistor and the caps are not shown in sams #127 because that volume was published before the service bulletins were issued. The bulletins call for the final bias to set at 15 ma rather that the 70 ma called for in the sams #127 alignment. For more info on this, check out this site. [URL]http://unit399.wixsite.com/858ssb[/URL]. Good luck. 73s. - 399 [/QUOTE]

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