Messages

I think you should ignore the calculator for now. Try the original values. R1: 33 K  r2 :330 r  r3: 8 K 2 r4: 100k
First I would try a 10k trim pot for r3 and get your collector voltage down. It diode suppose to be 4.5 I think. I had
A Hard time using that calculator too. Give out ashot

That's what. I was looking at. Echo base. I want the repeats to move at a slow rate almost like a strong chorus on the repeats. I fkn like clean repeats. I love the decay of analog/tape echo. But I want to be able to crank the effect when needed. Ill say thIs.. the carbon copy's mod Is pathetIc. LookIng for somthIng more Intense.

Hello all. I'm looking for a pt2399 delay that's very modulated. The only one I have that modulates is the carbon co py. It's pretty weak. Thanks

I made a fewvchanges that help ed a little bit but the effect is still sucking all the beef out of the tone. (That don't even sound right) but explains it perfectly. It seems like there's a cap in there filterIng to much. I changed the 3n9 to the 4n7 and the 200k to 150k. I also changed the 750k to 470k and even found a 50 k pot to use as the mix.. I failed to mention before thAt I used a 33pf on ic 2 instead of  22 pf. I used a 1uf monolythIc ceramIc for the output cap. I notIce that the bass Is lost somewhere around pIn 14 of Ic 2.. I just cant pIn poInt exactly what Is goIng on.. hope some one can help clear thIs up. Ive been starIng at It all day..

I saw that but I assumed it would be ok. It doesn't kill the volume terrIbly. But when I swItch the effect on there Is a volume drop. I'm out of 50 k pots. Do you think the 100 is ok

What I meant by kills signal is that it kills volume and seems like bass loss

Once again another fantastic idea madbean. I am wondering if amyone else has experienced this. The build works but once I boxed it up I noticed that it kills the signal a little bit. First of all I use d a 100 k pot instead of a50k for the mix pot. Also I use d 820k resistor for r12 because I didn't have a750k.  The only other sub was a 3n9 cap in place of the 4n7 cap. All my 4n7 were to large. Thanks

Hello all, in addition to building pedals I have also enjoyed fiddling with cb radios. I'm also a trick driver too.a while back I got a linear amplifier that gives more up too 250 watts. I know building one of these wouldn't bemuch different than a pedal. Except some different parts.  Any one when tried anything like this ? If so what would i need to get started?

I'm willing to bet my bottom dollar that it's a biasing issue. The gain of both transistors DOES matter. Bc one transistor is "humping" the other transistor it might be effecting your over all current/voltage. I'm not very scientificly knowledgeable with this tho . I just pick and poke around w these circuits

Ok so once I do the whole board song and dance, export it and it's pretty much already size/scaled? It looked a little off to me but it seemed like an optical illution .

After reading and experimenting and beating my head against the wall I finally have a layout I'm somewhat satisfied with for etching. I'm going to attempt to post pics later for some feedback. It's a simple version of the harmonic percolator. What I'm wondering is if there is a general grid size ya'll use for making sure the transfer comes out the corrct size with out tampering with it. I see in the GM tutorial he sets it to grid mil 50 2. Does that pretty much keep it the right size once I export the file? Hope this makes since.

I know from my own experiments that sometimes on a breadboard the Ge transistors a prone to picking up radio freq and  amplifing  them if not shielded properly. I usually use the remains of a wire after I strip it. Just slip it over the leads and ground your pedal well. Also try a different transistor.. I'm sure you did that, same results?

looks great to me , how did it come out?

I still haven't tried it with the recommended transistors. I'm currently using some 2n1309 pnp I got from jack orman bc they are super low leakage and se4010 dot package I got a while back.

I need for some one to break this circuit down to idiots terms for me. I know that it's a feedback circuit with clipping diodes. But does this count as a push and pull set up?