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The
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Path: /national/ncx5/

This is the BAMA archive. These manuals are available for download and free of charge. Do not be tricked into paying for a manual that is available here for free.

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Directories:

00readme:

Operating manual for National NCX-5 transceiver in pdf format.
Compliments of Mike Sullivan, KC2KJ.

Customer Service Bulletin CSB 66-1.  Compliments of Gregory Mijal, WA7LYO.

csb66-1:

The following bulletin was produced by National and intended for the National NCX 5 transceiver.

The customer Service bulletin is CSB 66 - 1

An additional modification to the NCX 5 transceiver:
Low AM receive audio level/ SSB audio level normal
Change L22 inductor at diode D11 (am detector) from the single layer unit supplied to a larger inductance.  A small 3 section choke works well.  This will raise the received am audio and prevent the operator from having to reset the volume control when changing receive modes.    

Compliments of WA7LYO

Files:

NCX-5 balanced modulator
(2.3 MB)
NCX-5 csb66
(810 KB)
NCX-5 helical gear
(100 KB)
NCX-5 lubrication
(65 KB)
NCX-5 Mk I manual.pdf
(16 MB)
NCX-5 Mk I schematic.pdf
(2.4 MB)
NCX-5-1.pdf
(550 KB)
ncx-5.PDF
(4 MB)