mu-tron micro V clone problem

[MovingInSloMo]

put one together form a GGG kit, seems to work ok at first, now there is no pronounced filter affect going on. Initially tested it with a bass, as it's going to a bass player. any known problems or issues?

[MovingInSloMo]

wow this died fast.. is there a way to tailor this for bass? Resistor swaps?

[Mark Hammer]

The general strategy in adapting any swept filter for bass is to increase the value of whatever capacitors set the filter frequency range, usually by at least double.

Now, if I were actually able to identify which capacitors this involved in the circuit, then we'd really be getting somewhere! 

[MovingInSloMo]

Does a layout help? 

[armdnrdy]

Does a layout help? 

You need to post the schematic.

[MovingInSloMo]

see below

[MovingInSloMo]

the actual schematic for the GGG version is found here: http://www.generalguitargadgets.com/pdf/ggg_microv_sc.pdf

[Kipper4]

The general strategy in adapting any swept filter for bass is to increase the value of whatever capacitors set the filter frequency range, usually by at least double.

Now, if I were actually able to identify which capacitors this involved in the circuit, then we'd really be getting somewhere! 

C3? C5? C6? surely one of these  Mark.

[MovingInSloMo]

bump so this doesn't get lost

[MovingInSloMo]

Ignore this post, got in touch with JD at GGG, apparently it's allready bass friendly, mine however is not working correctly at all.

[MovingInSloMo]

Blah I want to give this to my friend but I'm stumped. When first powered on the filter works. after a minute the filter stops engaging and stays at the bottom of the sweep. Any ideas where to look? I have read Mark's article on geofex about filters, very informative. But in terms of diagnosing one..