I built this yesterday. I need to go through it some more tonight. It fires up. All controls work. Only issue I’m having , and it’s probably because I used a TL074 , is when you first hit a note it sounds nice and bright and crunchy and then it kinda looses the crunch. Kinda like a gate effect. If I turn the volume down on my bass it seems to be better. I need to order some TLE2074s. Could anyone recommend a good substitute. I may have something else on hand. I feel good about this one so far. Matt
You could always try an LM324 if you have one on hand, but checking datasheets it looks like the 2074 is different enough that there might not be a great drop in replacement.
I gave the LM324 a try. It was better than the TL074 but still not right. I have some TLE2074s on order. Hope to have them in a few days and get this one verified. Cheers. Matt
This one may need to wait till Fuzzhead is healed up. The 1uF under IC 2 should be a 100nF. I have confirmed that with him. I put the 2074 in and it works but I dont think its working like it should. With the gain set at 0 you get a fuzz / Octave as you turn the gain up the octave goes away leaving just fuzz. All the pots seem to work as should. I came across a schematic that I cant post here and it shows a +12v supply on the 470k and the 10k that are connected to Q3. It also shows +5v on the 2k2 connected to the collector of Q2 and on the 10k connected to Q1. These are just my observations, and I may be in a little over my head. Im still fairly new to this. For now I will shelf it for a rainy day. Matt
TAG IT! I have had pcbs made from the schematics available from VFE for both versions of the wood chipper. Version 2 which this layout is based on and V3 the SPS version. This layout sounds exact to the V2 Woodchipper. In my opinion V2 is better than V3. @fuzzhead , if anything your version may sound a tad better , not sure why but it may have something to do with not using the VFE bypass.
Hello! Is the layout verified? I'd like to assemble, but without a circuit it is very dangerous, it is not in the Internet.
ReplyDeleteI'd also like to know if it is verified, or where it was acquired. Thanks!
ReplyDeleteYes, it is verified, I think AlexS built it.
DeleteI haven't built this layout yet. It's basically a Brassmaster with baxandall EQ, right?
DeleteYes, bandax after a Brassmaster. I've marked it unverfified.
Deletecan you make the layout expandable ( for lack of better words) when you click on it.
ReplyDeleteThanks for noticing, Matt.
DeleteFixed.
Awesome, thanks
ReplyDeleteMatt
I built this yesterday. I need to go through it some more tonight. It fires up. All controls work. Only issue I’m having , and it’s probably because I used a TL074 , is when you first hit a note it sounds nice and bright and crunchy and then it kinda looses the crunch. Kinda like a gate effect. If I turn the volume down on my bass it seems to be better. I need to order some TLE2074s. Could anyone recommend a good substitute. I may have something else on hand. I feel good about this one so far.
ReplyDeleteMatt
You could always try an LM324 if you have one on hand, but checking datasheets it looks like the 2074 is different enough that there might not be a great drop in replacement.
DeleteI gave the LM324 a try. It was better than the TL074 but still not right. I have some TLE2074s on order. Hope to have them in a few days and get this one verified. Cheers.
ReplyDeleteMatt
This one may need to wait till Fuzzhead is healed up. The 1uF under IC 2 should be a 100nF. I have confirmed that with him.
ReplyDeleteI put the 2074 in and it works but I dont think its working like it should. With the gain set at 0 you get a fuzz / Octave as you turn the gain up the octave goes away leaving just fuzz. All the pots seem to work as should. I came across a schematic that I cant post here and it shows a +12v supply on the 470k and the 10k that are connected to Q3. It also shows +5v on the 2k2 connected to the collector of Q2 and on the 10k connected to Q1.
These are just my observations, and I may be in a little over my head. Im still fairly new to this. For now I will shelf it for a rainy day.
Matt
Just wanted to add. I tried this with a 12v power supply and it sounded a lot closer to the demos I have watched.
ReplyDeleteTAG IT! I have had pcbs made from the schematics available from VFE for both versions of the wood chipper. Version 2 which this layout is based on and V3 the SPS version. This layout sounds exact to the V2 Woodchipper. In my opinion V2 is better than V3. @fuzzhead , if anything your version may sound a tad better , not sure why but it may have something to do with not using the VFE bypass.
ReplyDeleteThanks Marc!
ReplyDeleteTagged!