fuzz pedal - crazy hum/radio interference, only when fuzz dimed??

[drummer4gc]

hey all,

i am rehousing a jordan bosstone fuzz effect into an old MXR enclosure. When I turn the "attack" knob fully clockwise, I get a loud hum and radio interference, just like when there is improper grounding in a pedal/guitar. however, as soon as i back off a little, it goes away and works fine. does this have something to do with the design? I'm trying to figure out why this would happen only when the knob is turned full up. I've grounded it in a few different ways, connected the input wire straight to the pot instead of to the board, tried a small capacitor from input to ground, no luck with anything. can someone help? i feel like with this specific of a problem, there has to be a singular solution that i am just not seeing.

thanks!

[yeeshkul]

I have a question - when i power it up (EHX Bass Micro Synthesizer ), it takes about 15-20 sec to start working. It comes to life with a "whooosh" sound and then it works normally. is that what is supposed to do? I actually have this one for repair(there was a faulty CA3094 in it - the output one).

[WaveshapeIllusions]

So I'd like to make an envelope filter using LDRs. I'd like it to have the option of downsweep too. Problem is, that would mean the LED has to start bright and then dim, right? Best I can think of is bias the LED on and invert the control signal to lower the voltage across it. I also thought of using an LDR controlled by the first LED to shift the voltage across the second LED; this seems excessively complicated though. Am using the wrong control method for my goals here?

Thanks in advance for any help.

[ashcat_lt]

This may not be the right board for this question, but it's the only one I actually read on this forum...

I guess I'm not even really sure how to articulate the question. 

With a digital delay pedal like my Boss GigaDelay, if I turn up the Feedback/Repeat control all the way and hit a note it will repeat that note at the same volume indefinitely.  Then let's say I play a repeating figure over this.  The new input will start to add together and "push down" the original repeating note.  The total output never really gets any louder, but the new input gets louder in proportion to the old input.

OTOH - Using a VST delay plugin, it seems to be very difficult to dial in the feedback parameter to a point where it does infinite repeat without breaking into self oscillation.  At one setting the repeats will eventually die out (though it may take a long time), but if you turn it up just a touch more the repeats get louder and louder.  That's great fun and all, but...  It also seems that if I get something going in a long repeat and then add more input, the total output of the delay just keeps getting louder.  The new repeats are added on top of the old repeats, rather than "pushing them down".  Worse yet, the point where the feedback becomes uncontrollable is hard to define.  It seems to be different for different plugins, and even for different sources with the same plugin.

So, what's the difference?  Is this a function of the "compansion" in the Boss pedal?  Is there any way to get a generic VST delay to react the way I'd expect from my pedal?

[mordechai]

I just logged in and tried to view some of my recent posts, but the website is reporting back that I have none.  No posts, no responses, and when I click on "show unread posts since last visit", I'm getting nothing there too.  Anybody know what's happening??

[duck_arse]

ahh, so I see the NRA has been "collecting" again. all those innocent americans ......

I'm actuallly just testing

[Lurco]

again?

[Jdansti]

Just nod if you can hear me
Is there anyone home?

[tntptp]

I want to be able to change the order of my pedals in a convienent manner so I can experiment creating different sounds and ambient effects.  So, I am looking at building a pedal order selector using rotary switches with one deck and 2 poles and 6 positions.  I'm looking at breaking my pedals into 5 groups and I'll use 5 rotary switches.  This explains 5 of the 6 positions.   The 6th position will be a bypass.  Each rotary switch will also have a toggle switch associated that assigns that rotary switch to either the main path going to the amp, or to the amps effect loop. 

My question is related to tying all of the grounds together.  I've seen schematics showing patch bays where all of the grounds are tied together so I assume it's not a problem.  But since I'm not only tying all of my pedal grounds together but also my amp input and amp effects loop grounds together, I wanted to see if anyone had any feedback on this before I start buying parts.  I guess concerns would be inducing noise or whatever?  Thanks.