DX-100 QUESTION

[Garey Barrell]

Bill -

The modification removed that (failure prone) capacitor and changed the 
variable LOAD capacitor from a 250 pF to a three section ~1000 pF BC 
variable.  The "new" capacitor was the same one used in the later 
DX-100B.  The dual control shaft, switch and inner red knob were also 
removed and replaced with a single knob.

73, Garey - K4OAH
Atlanta

Drake 2-B, 4-B & C-Line Service Supplement CDs
<www.k4oah.com>



wa4fki wrote:
> Good Day Everyone, 
>
> I have been collecting parts to restore several OLD Heathkit DX-100 transmitters. However I run into a problem, in two of the transmitters there is the Heathkit "special capacitor" missing. The capacitor's heathkit part number is 20-45, there are three capacitors in one, 400-600 and 800 mf built together. Heathkit call it the "course loading" capacitor, a small red knob which is part of that control varies the final loading (capacitor 250 mmf) which is connected to the antenna output connector. Some of the rigs I have this and some don't.
>
> I was told Heathkit sent out a modification stating that the "special capacitor" should be removed. 
>
> Can anyone please varify this?
>
> 73's
> Bill
> WA4FKI
>
>
>   

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