Doepfer

Dear group,

In case I want to use the A-170 slew limiter together with the A-190-1 MIDI-to-CV do I have to disconnect the CV-link of the A-190-1?
Or can I route A-190-1 CV2 out through the A-170 to VCO CV1?

Kind regards,

Ton

Hi Florian,

Thanks for your answer.
I'll sure take in mind what's said about the A-170.
Alas I forgot to check for the version on the PC board :-(
I'll do that next time I put a new module in.

Kind regards,

Ton

--- In Doepfer_a100@yahoogroups.com, Florian Anwander <fanwander@...> wrote:

>
> Hi Ton
> 
> Ton Akveld wrote:
> > Or can I route A-190-1 CV2 out through the A-170 to VCO CV1?
> You can do so.
> 
> But keep in mind, what is said on http://www.doepfer.de/a170.htm:
> 
> 'Additional technical remarks: If the upper slew limiter is used for 
> precision applications (e.g. portamento/glide of one or more VCOs) a 
> buffer (e.g. A-185-1 oder A-185-2) is recommended between the A-170 
> output and the VCO(s) input(s). The reason is a small voltage drop that 
> is caused by the protection resistor at the A-170 output. An A-185-1 or 
> A-185-2 connected between the A-170 and the VCO(s) avoids that voltage 
> loss. For all A-170 manufactured later than May 2009 (recognizable by 
> the label "Version 2" on the pc board) this remark is not valid as these 
> modules are equipped with an additional voltage buffer at the output.
> The lower slew limiter cannot be used for precision applications because 
> of the voltage loss caused by the diodes of the circuit.'
>

Hi Ton

Ton Akveld wrote:
> Or can I route A-190-1 CV2 out through the A-170 to VCO CV1?
You can do so.

But keep in mind, what is said on http://www.doepfer.de/a170.htm:

'Additional technical remarks: If the upper slew limiter is used for 
precision applications (e.g. portamento/glide of one or more VCOs) a 
buffer (e.g. A-185-1 oder A-185-2) is recommended between the A-170 
output and the VCO(s) input(s). The reason is a small voltage drop that 
is caused by the protection resistor at the A-170 output. An A-185-1 or 
A-185-2 connected between the A-170 and the VCO(s) avoids that voltage 
loss. For all A-170 manufactured later than May 2009 (recognizable by 
the label "Version 2" on the pc board) this remark is not valid as these 
modules are equipped with an additional voltage buffer at the output.
The lower slew limiter cannot be used for precision applications because 
of the voltage loss caused by the diodes of the circuit.'