Heathkit Service Bulletins - HD-1416 (Revised & Complete)

[Joseph W Lutz]

                        July 31, 1987
HD-1416                                         Bulletin No:
Code Practice Oscillator                                HD-1416-1

                          Cabinet Color Change

The commincations products are changing from a brown to a black/gray
color scheme.  Below is a listing of the part numbers for the different
color cabinet parts.

Description     Brown Cabinets          Black/gray Cabinets
----------------        ----------------------          ----------------------------

Cabinet         PN 95-98-1              PN 95-98-2
Front Panel     PN 203-1671-2           PN 203-1671-4
Knob            PN 462-1136             PN 462-1278

The PN 203-1671-3 black/gray front panel had the HD-1416A model number
printed on it and was purged from stock.  The -4 front panel has the
HD-1416B printed on it.

Heath Parts Replacement is stocking both color parts.
--------------------------------------------------------------------------------------------------------------------
                        October 28, 1988
HD-1416                                         Bulletin No:
Code Practice Oscillator                                HD-1416-2

                               Transistor C3 Change

The output transistor at Q3 in the HD-1416A has a different generic and
part number than the one used in the HD-1416H.  The "A" uses a 2N5249A
[PN 417-213] transistor at Q3; the "H" uses a 9014 [PN 230-8391].  This
change was made because Prokit, the vendor for the "H" model kits,
couldn't supply the 2n5249A transistor.  However, for replacement
purposes, these two transistors are interchangeable.
--------------------------------------------------------------------------------------------------------------------
Thats everything I hold up to 1989 that covers the HD-1416.  Enjoy!
--------------------------------------------------------------------------------------------------------------------


73 de Joe  W7LPF/4  [NNN0KUU]
QWCA - SOWP - NCVA - FISTS - RCC
Gordonsville, Va 22942 [Orange Co]

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