[Milsurplus] BC-9: Answer One Question, Get Another.

[AKLDGUY .]

Thank you for redrawing the circuit Michael.
Let's see whether we can get a few things straight.

1. The BC-9 is a CW only set, right?
2. Keying is meant to cause the oscillator to shift downward by
connecting extra C at C6
3. This downshift is to create the beat note necessary for CW; ie the beat
is created by an
offset at the transmitting station, not the receiving

It seems to me that either:
a. The downshift is excessive
b. The downshift is to the correct frequency and the oscillator is running
too high on receive

I believe b is the more likely cause, because more components are in
circuit on receive,
several of these components being shorted by the key.

73 de Neil ZL1ANM


On Wed, Feb 15, 2017 at 5:39 AM, Michael Bittner <mmab at cox.net> wrote:

> I have revised my schematic diagram to correct the connection of the cold
> end of the compensating capacitor (C6) and the location of switch S2.
> https://goo.gl/photos/KrLEzh7pdHXfneNC9
>
>
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