At 5:22 PM +0000 2003/09/26, chef_poireau wrote:
>the ernie ball pedals are available with different resistance values:
>500kohm, 250kohm, 25kohm; and, according to the ernie ball website:
>500 and 250 kohm is "suitable for the audio path of passive
>instruments", and 25kohm "for the audio path of active instruments or
>buffered effect returns".
>
>so: which resistance value do i need/want?
>
Fortunately, the 850 is very forgiving and seems to work with almost
any pedal you can throw at it. The 850 has a jumper that is used to
select your pedal's maximum resistance range (5K-15K, 15K-75K,
75K-150K). I use an Ernie Ball pedal that has two pots in it: one for
the pedal, the other to "warp" the pedal response. I can adjust my
pedal's maximum resistance from 0 to 125K with the "warp" control. I
have the jumper set to "75K-150K". My pedal is one of those that is
"suitable for the audio path of passive instruments" but it works
fine with the 850. Using the RANGE and OFFSET controls on the 850 and
the "warp" control on the pedal, I can get almost any range of
voltages out of the 850.
If I had to buy a new pedal, I'd go for the 25K model. The output
voltage will be quite a bit higher if you use the 250K or 500K
models. You can change some resistors in the 850 to work with those
models, but why bother if you can just get the 25K model.
p.s. Stooge Larry will probably have a lot to say about this topic
when he gets back.