Doepfer

> hi people, and in this case, especiallly dieter,
> 
> i received a few days ago an a-146 LFO 2, and i'm a little
frustrated at the point at which i 
> need to switch from one range to the next. bang in the middle of the
range of what i 
> would use to produce "normal" expressive effects, i need to flip the
switch and twiddle the 
> knob :)
> the first half of the medium range is not something i would use as
an expressive device, 
> ditto for the upper half of the hi range (i'm naturally not
suggesting that there are no uses 
> for these speeds).
> 
> so my question is: is there a way to either a) change the crossover
points or b) get all three 
> ranges to start at zero and cover the range up to their respective
maxima ?
> 
> cheers,
> 
> stu

Sorry for my late reply but I was not in the office last week and had
problems with the Yahoo messages (probably because of the installed
autoresponder) and did not receive some messages.

There are three capacitors on the A-146 pc board. C1 (680pF high
range), C2 (100nF mid range) and C3+C4 (both 2.2u, low range). If the
value of a capacitor is increased the corresponding frequency range
becomes lower and vice versa. If you e.g. double C1 to 1nF the high
frequency range goes down about 1 octave (i.e. the period time
doubles). The capacitors are just behind the frequency control and
marked clearly C1, C2, C3 and C4.

Best wishes
Dieter Doepfer