Heathkit Service Bulletins - HD-8999 (Revised & Complete)

Joseph W Lutz joelutz at JUNO.COM
Wed Jan 21 00:50:39 EST 1998


                        September 20, 1985
HD-8999                                         Bulletin No:
UltroPro CW Keyboard                            HD-8999-1

In Manual [PN 595-2941-01], the schematic shows the incorrect labels on
the leads of Q12 and Q13.  The transistor symbols are correct, however,
the labels for the emitter and collector are interchanged.  Make this
correction to your shop schematic for future reference.
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                        December 20, 1985
HD-8999                                         Bulletin No:
UltroPro CW Keyboard                            HD-8999-2

                        Seven Segment Display Change

The seven-segment displays at V201-V204 are changed:

        From [PN 411-861] to [PN 411-884].
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Thats everything I hold up to 1989 that covers the HD-8999.  Enjoy!
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73 de Joe  W7LPF/4  [NNN0KUU]
QWCA - SOWP - NCVA - FISTS - RCC
Gordonsville, Va 22942 [Orange Co]

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