tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

[deadastronaut]

hmmmm...im sure it would have to be between the in/out  and the switch....hmmmmmm......

maybe someone more knowledgable could chime in here on this..

glad your enjoying it though...cool. its nice to hear success stories on this...nice one ..

i'm busy at the moment trying to suss out a sine wave schematic for my other current project...the 'pulsewah'....cant wait to get it going/finished..i love the sound of it..
check it out...i built one on pcb..but the @#$%er ticked...so am approaching it from a different lfo..pulse..i'll get there one day...like the tiny trem these things take time to get right...ish..
http://www.diystompboxes.com/smfforum/index.php?topic=88582.0

[Ratbones]

So I've got this all thrown together finished and in an aluminum hammond style enclosure, but with a 4069 triangle wave LFO.

I've got a very quiet ticking and buzzing, which sucks... (Probably inherent in my LFO choice; I should've just gone with the 555 LFO). Anyhoo, I'm wondering what proper preocedure for enclosure grounding is. If I touch bare metal on the enclosure, it buzzes, which makes me think maybe I should ground it. This is my second pedal, so I'm new to this, and I've never really heard whether enclosure grounding is proper or not.

Advice?

[pinkjimiphoton]

hey bro, just ground the circuit  to the ground lug on one of the jacks, and you should be good to go...and, if it's anything like the one i built, that should take care of the ticking, too..good luck! if ya still have issues, and are in the states, go to rat shack and get the proper 555, and you should be good to go! be careful, rat shack stocks two of them, both cmos, but only ONE works right in this circuit...it's somewhere on this page, maybe the one before it.

have fun!

[deadastronaut]

@drew, yeah ive tried lots of different lfo's on various things...and a lot of them had noise/tick issues..too many too remember...

stick with the cmos 555 and you should be ok...

[ppaappoo]

HI, if you try to use an audio switch FET instead LED/LDR?

[deadastronaut]

hi pappoo

sounds interesting, i dont have a clue how that works though...being a dumbass!...could you elaborate?.

would the 555 turn the fet on/off then, and be variable speed controlled too...with a depth also?..hmmm...i think i'm understanding you....a bit!.

[ppaappoo]

hi pappoo

sounds interesting, i dont have a clue how that works though...being a dumbass!...could you elaborate?.

would the 555 turn the fet on/off then, and be variable speed controlled too...with a depth also?..hmmm...i think i'm understanding you....a bit!.

Not much about it but I think the EA Tremolo has something similar, is the part shown in red, it seems that Q2 is a kind of switch controlled by oscillator, that leads the signal to ground .
Try this to bypass the signal to ground and cause an sound inrrupcion like a tremolo.

[pinkjimiphoton]

[Scruffie]

hi pappoo

sounds interesting, i dont have a clue how that works though...being a dumbass!...could you elaborate?.

would the 555 turn the fet on/off then, and be variable speed controlled too...with a depth also?..hmmm...i think i'm understanding you....a bit!.

Not much about it but I think the EA Tremolo has something similar, is the part shown in red, it seems that Q2 is a kind of switch controlled by oscillator, that leads the signal to ground .
Try this to bypass the signal to ground and cause an sound inrrupcion like a tremolo.

The FET Is working as a Variable Resistor... you can't really just take it out that design and stick it in another though, FETs are hard to use and Vary alot so getting them to run predictably and cleanly is difficult, that's why you don't see them used too often.

There are a couple of other options but the LED/LDR combo already in use here provides the simplest and cleanest solution.

[deadastronaut]

@jimi..yay!...built!..

@scruffie...hmmm...not as simple as first thought then!...

[Scruffie]

@jimi..yay!...built!..

@scruffie...hmmm...not as simple as first thought then!...

Yeah... i'm gunna say if you had ticking problems with an LED, you'll be in for a whole world of pain with a FET.

[deadastronaut]

righto!...

[pinkjimiphoton]

not to be lame/lazy, but if i increase the resistance of the depth pot, will i get slightly more throb?

i added that buffer circuit  i was working on to it, works great, but now the throbulation is really really subtle...but...in a way it's kinda cool, cuz as the guitar decays, the trem gets stronger!! kinda neat in itself, but i'd really like just a rch more to the depth...do you think a 10k or 50 may work better rob? or is it overkill? or do i need to go down, say, maybe to 1k?

thanks in advance!! i love this circuit, it's really sweet and subtle!!

edit...i tried raising and lowering the resistance in the depth part of the circuit, no difference whatsoever.

i'm thinking i'll try wiring it to the output jack instead of the input, but thinking it may pick up a "tick" in the buffer amp?

the only other thought i've got is maybe separating the led/ldr slightly, to see if that may increase the intensity of the pulse?

i await ya'll's infinitely superior knowledge on this!! 

[Barcode80]

is your buffer set up as unity gain? I ask because if it is set with a small boost, then the resistance of the LDR may not be enough to kill the signal, which would explain your problem.

[pinkjimiphoton]

yah, unity gain, i've been wondering if it's giving a slight boost. here's the circuit...beats me, i'm a newbe!



i have noticed that fuzzes and drives tend to overpower it...kinda neat, in a way...like a ducking trem!

[askwho69]

Hi all! rob iwasscanning the thread for hours! hehehe cant find the final schematic hooooooooh can you repost it? thanks i want to make this tomorrow

[deadastronaut]

i havent a schematic, but this was the final version i built....

http://www.aronnelson.com/gallery/main.php/v/chickpea/ts555cnvero.gif.html

http://www.aronnelson.com/gallery/main.php/v/chickpea/TS555TINYTREM.gif.html

[askwho69]

thanks rob ill make a schematic for perfing

[LucifersTrip]

thanks rob ill make a schematic for perfing

sounds great...please post when you are finished...

[askwho69]

ohhh i wrote it in a piece of paper and then analyse the size and free-styling the perf design hehehe