I want to highpass my Infinium T5 head. In terms of a series capacitor adding a 6db treble slope to everything - so probably starting quite high in frequency. AFAIK there is no T5 schematic at this point, but there is a V5 schematic which is very similar but has a single tone control and is not SMD....

I cant believe that Caline could come up with the pedal themselves, is it a clone of the Earthquaker Afterneath?

Tried it and it works - now my valve junior has a bass knob

If i add a pot shorting the capacitor in a RC highpass, will that allow a variable amount of highpass controlled by the pot?

thanks,

Its a small hex screw. Its not a volume knob, its the phase speed knob.

Thanks for the info, carefully swapped them out for some through hole germaniums, and its sure smoothed the tone.

I opened up my movall / tone city klone to put in some germaniums, but the existing smd's look like they allready are. but im a noob so am not sure.

Do these look like germaniums ?

Mods all finished, pedal now far less hissy and removing the output emphasis has taken the blanket off the sound. Turned out the cap numbers in the first page of thread were already correct for the new version of the pedal for c18,c30,c25,c29 and c21, c22, c32. What got me confused was the reference...

My ge-7 is the most recent revision, and i suspect that the cap numbering has changed since the mods described on the first page of this thread. Ive currently only got a blurry .jpg of the circuit for my ge-7, but for instance "change c23 to a 270pf silver mica" seems not to match my ge7 w...

thanks for the help phatt - but i now realise my circuit diagram is for the wrong version of the pedal. duh :slap: Based on my (wrong version) diagram it seems to me that the pre emphasis is a cathode bypass cap and the post emphasis is a passive RC network, so both should be far less nasty on my gu...

thanks phatt, i edited my post for clarity just as you were answering it, thanks for the info.

http://www.hobby-hour.com/electronics/s/schematics/boss-ge7-equalizer-schematic.png I would like to remove the pre and post emphasis on my ge7, cctsim said "I have removed them both from my unit by converting the first op-amp to a voltage follower and removing C27 and R33. Also, R33 needs to be...

I must apologise to Alpha for bagging their pots, turns out the "Alphas" that i purchased from realtone music were fakes - no date or manufacturer codes.

dont buy from realtone, some of what they sell is fake.

Replaced the gain pot with a 1 meg, the sweet baby with bass and gain mod is now my #1 dirt box.

Just added some bass and gain to my sweet baby by removing smd resister r14 (47k) and replacing with a 100k through hole. Drops highpass from 720 to 338hz.
Also added a 300k resister to the gain pot wiper. Now it does fat high gain tones

built the stripboard sho, put in output of wah, increased wah input resister from 68 to 500k, wah now far less muddy and plenty loud

thanks for the info induction.

seems my stripboard emerson paramount will be equally useless as a wah output boost, if the pcb for the SHO is too big to fit the wah ill try building a stripboard one.

ive got a SHO kit in the mail. would this be better for the output of the wah?

done some interwebbing and it seems that the common emitter of the em drive gives it a super low input impedance, buggering up the wah before it, just like a fuzz face. The aim was to put the em drive inside the wah as an output booster. im still unsure about this issue, so if anybody who knows this...

I tried putting my stripboard Em drive after my vox847 wah for a boost but the wah does not "wah" when output to the em drive.

I assume its the same as the "wah output to fuzz pedal stops wah working" problem, but dont know enough to be sure...

Ideas anyone?