[sdiy] mc1496 app note questions

[Scott Gravenhorst]

Looks to me like an error.  I think that ought to be a 
jump over, not a connection.

<christian at dslab.com> wrote:
>I found a circuit for a simple SSB modulator on the web some time ago, built
>it up on a breadboard and stuck it away... yesterday I found the breadboard
>with the circuit still intact and wanted to build it onto perfboard, but
>have lost the schematics.  I searched on the web and couldnt find the
>original schematic, but they were taken directly from the mc1496 app notes
>anyway, so I looked there... I found 2 sets of app notes... 1 from motorola,
>and 1 from philips...
>
>The motorola one looks right, however the philips one looks a bit strange to
>me...
>
>http://www.semiconductors.philips.com/acrobat/applicationnotes/AN189.pdf
>
>is it my imagination or is it not good to connect -v directly to ground?  Is
>that what is going on in this schematic?  I dont understand... could one of
>the list gurus clarify this for me?  figure 5 "double suppressed carrier
>modulator"
>
>Anybody looking for a freeked out effect for cheap should build one of these
>things... I dig listening to foreign language shortwave broadcasts tuned
>slightly out... it sounds so "alien".
>
>Christian Oncken.
>

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