Hey Ken!
I've got the zero and span controls nailed for the VCO of the Bi-N-
Tic and the response through the v/oct input is now where one would
expect. Also the range of the VCO is very wide.
After quite a bit of experimenting, it still seems that the
bandwidth and damping controls have little useful range. The
damping needs to be over half open before reasonable signal strength
is available. The BW control is in the last quarter of the range
before the incoming signal is heard. The controls only interact
within this range, as well.
What would be the best approach to increasing these ranges? I was
considering increasing the 100K feedback resistor between the output
and the input of both signal stages. Also, would adding resistance
between the damping pot and ground help?
Increasing the audio signal seems to be the real issue. The VCO
output is quite stout and easily heard unless the damping is closed
enough to drop the input signal first. It seems that they should be
more equal throughout a greater range of the controls. What are
your thoughts?
On the other hand, with the BW and damping wide open this thing is
wild!
Chub
I've got the zero and span controls nailed for the VCO of the Bi-N-
Tic and the response through the v/oct input is now where one would
expect. Also the range of the VCO is very wide.
After quite a bit of experimenting, it still seems that the
bandwidth and damping controls have little useful range. The
damping needs to be over half open before reasonable signal strength
is available. The BW control is in the last quarter of the range
before the incoming signal is heard. The controls only interact
within this range, as well.
What would be the best approach to increasing these ranges? I was
considering increasing the 100K feedback resistor between the output
and the input of both signal stages. Also, would adding resistance
between the damping pot and ground help?
Increasing the audio signal seems to be the real issue. The VCO
output is quite stout and easily heard unless the damping is closed
enough to drop the input signal first. It seems that they should be
more equal throughout a greater range of the controls. What are
your thoughts?
On the other hand, with the BW and damping wide open this thing is
wild!
Chub