Tremulus lune . anyone built one without ticking/noise?..

[Slade]

For the tremulus lune, along with a good voltage filtering, you can put a 33nF cap between pins 1 and 3 of smoothness cap. It will make LFO waveshape a little "rounder" but it will get rid of a big part of the ticking too. Also use a 470pF or 1n cap across the trimmer, it will filter high frequencies at the output buffer and get rid of some ticking also.

+1 for the 1n cap; I've also added a 100uf cap in the power section. No ticking, except at very high levels.

@paolo...is it ok at gig type levels though?...


erm...did slade mean 33nf cap on pin 1-3 of smooth pot?...


also i'm rolling my own led/ldr combo...!

Yeah, yeah... a 33n pot at smooth cap...

[space_ryerson]

I've built two with the fuzz central layout. I used a 10K reverse taper pot for the speed control, and a 5k center detent for the fine control when I found the fine control to be useless with the standard 1k. I built both at the same time, and one ticked with the amount knob all of the way up, and the other didn't tick at all. Long story short, on the troublesome pedal, when the trimpot was set towards the middle of it's range, the pedal ticked, but when it was above or below that setting, the ticking vanished.

[lazerphea]

For the tremulus lune, along with a good voltage filtering, you can put a 33nF cap between pins 1 and 3 of smoothness cap. It will make LFO waveshape a little "rounder" but it will get rid of a big part of the ticking too. Also use a 470pF or 1n cap across the trimmer, it will filter high frequencies at the output buffer and get rid of some ticking also.

+1 for the 1n cap; I've also added a 100uf cap in the power section. No ticking, except at very high levels.

@paolo...is it ok at gig type levels though?...


erm...did slade mean 33nf cap on pin 1-3 of smooth pot?...


also i'm rolling my own led/ldr combo...!

It's ok at gig levels, but it's not deadly silent; I think it's acceptable, just like a flanger used at gig levels: when you don't play you can hear the noise being modulated by the lfo.
Sorry for the mess with the cap... I remembered I've added a cap to a pot, but couldn'd really recall which one of them :p

[deadastronaut]

cheers guys!.....


@slade: you've ruined the whole project now.....

@paolo. no worries, i got ya!..

@space:..i'll watch that trim then!...

[Perrow]

For the tremulus lune, along with a good voltage filtering, you can put a 33nF cap between pins 1 and 3 of smoothness cap. It will make LFO waveshape a little "rounder" but it will get rid of a big part of the ticking too. Also use a 470pF or 1n cap across the trimmer, it will filter high frequencies at the output buffer and get rid of some ticking also.

+1 for the 1n cap; I've also added a 100uf cap in the power section. No ticking, except at very high levels.

@paolo...is it ok at gig type levels though?...


erm...did slade mean 33nf cap on pin 1-3 of smooth pot?...


also i'm rolling my own led/ldr combo...!

Yeah, yeah... a 33n pot at smooth cap...

Time to put a cap on your use of pot?

[asatbluesboy]

Also built one from the FuzzCentral layout with a Vactrol (don't remember if it was a 5C2 or a 5C3, though). No ticking at all, great with distortion, fine pot was a tad useless so I replaced it with a resistor in series with the speed pot and put a gain pot instead.

[jonfoote]

ive got a bastardised tremulus on my breadboard at the moment and noticed last night that the 2 x 100k resistors and the 10u cap that form Vb can effect ticking.
either increase the value of the resistors and/or the cap made the ticking dissapear for me

im only using one dual opamp, one side oscillator and the other the last half of the signal path after the ldr. most people round here say never use the same chip for oscillator and signal but even so im getting no bleed through what so ever after increaseing the values for Vb.

[Valoosj]

Rob, if you haven't already started on this pedal, I really suggest having a look at the tap tempo tremolo. After building this my tremulus lune which was always on my pedalboard, got sent to the closet, never to return.

[deadastronaut]

ok been thinking about this again...thought i'd knock up a 1590b 4 pot version...losing the fine pot, which a lot of folks say is pretty pointless...

here ya go...any obvious faults?...(unverified)

[Perrow]

here ya go...any obvious faults?...

Hell yeah, about twenty components too many and not a 555 in sight

BTW, "hell" did not exist in my phones dictionary

[deadastronaut]

555 is no longer in my vocabulary...

[Perrow]

555 is no longer in my vocabulary...

But I see that LDRs still is 

My latest idea is in the tiny realm. Five components, set spaciously on a 1.8x1.3 cm board. Just have to breadboard the circuit first to see if it'll actually work.

[deadastronaut]

^great, can't wait to hear it.....


yeah good old ldr's...