[sdiy] Re: reset circuit for LFO

[Dave Manley]

Ah...do you know if it uses a triangle core, or saw core?

Danjel van Tijn wrote:
> unfortunately there is no reset on it. This was a major design flaw...
> the lfo is great except for this important factor (and has caused many
> people to sell theirs as a result). Also there are jumper switches on
> the back of the pcb for selecting the 2 x 4 sets of mod source/dest
> for the sum/diff/max/min outputs. As a result I am making a 4HP
> expansion module that has two resets, selector switches and I may add
> jacks for external signal ins (so you can route other things through
> the max/min/sum/diff circuits)
> 
> 
> 
> 
> On Mon, Oct 19, 2009 at 11:42 AM, Dave Manley <dlmanley at sonic.net> wrote:
>> Danjel van Tijn wrote:
>>> Here is another issue (and it may have to do with the point I picked
>>> to ground the CAP)
>>> ...
>> Disclaimer: I know nothing about the design of the Livewire LFO.
>>
>> Another approach is to use the existing reset circuit, instead of adding  a
>> new circuit to ground the cap - in other words, there's already a working
>> reset, why add another?  Try back-tracing the existing circuit and add in
>> the appropriate circuit to trigger that circuit.  This is how a sync circuit
>> is typically added to a VCO.
>>
>> -Dave
>>
>>
> 
> 
>