if you want to see the full schematic of this, you have to click on the github link at the bottom of where the above link goes.
After perusing that schematic, it looks like you can build this to be buffered bypass with trails if you want. Just connect the "in" and "out" wires directly to your 1/4" jacks and use a stomp switch for the "preamp sw" - and since THAT is only a DPDT, you will have an extra row of lugs on a 3PDT for the status LED... I kind of HATE when delay trails don't fade naturally after you bypass a delay so I'm pretty pumped about this layout. Thanks Anders!!!
actually - I may have spoke too soon about that - think I need to read the circuit designer's post a bit more to figure out how to do trails bypass...🤦
okay everyone, thanks for bearing with me... think I got the buffered bypass/trails thing figured out after staring at the schematic for a few...
Input+Output to the 1/4" jacks like I said two posts earlier, then the point where you need to break the connection between the input buffer and the PT2399 is where the 1uF box capacitor connects to lug 5 of the preamp switch. So if you use a DPDT stomp, you only need to run a wire from lug 5 of the preamp switch to lug one of the stomp switch, then run a wire from lug two of the stomp switch to R/27 where lug 5 of the preamp switch would have gone. You can then use lugs 4 and 5 of the DPDT stomp for the status LED- and ground connections.
of course, that means the preamp is always coloring your signal a bit but such is the nature of most actual tape delays, too!🤷
Duuuude! Glad to see you back droppin circuits left and right. Also glad to see death cult working away and sharing info. Totally putting this circuit on a breadboard and check it out.
Crazy day. Guess what? You can tag it. Works great. Pity that for verification purposes, I use the lowest quality components that I have at hand. Now i'll just need to replace about 25 caps 🤣🤣🤣. Nice job!
Enjoy, the effect sounds great (as good as a Pt2399 can, but is true that is heavily molded) and both buffers are a great additiin. Be patient with caps (about 40) you'll have polyester and monolithic nightmares 🤣🤣🤣
I'm embarrassed to ask after all these years of building, but how are the lugs numbered on a dual gang pot? Let's say, looking at it from underside. Any help much appreciated.
I have buit it and it sound pretty well but the sound of the repetitions is a little dirty, not all clear. What can it do? Maybe the PT23 chip? I also can I amend that there are 22 links instead 21. Thanks to upload this amazing delay pedal.
Aside from the usual culprits of stray copper bits and tiny solder bridges on the underside of your board causing unwanted connections, I would definitely try a bunch of different PT2399 chips (hopefully you used sockets).
The quality control on those things is all over the place and some make so much noise as to be practically unusable.
I have try with some PT2399 and its the same, I have listened the demo again and I have realised (min 1:09) that it is the circuit itself. However is a great delay and I love the degrade pot.
if you want to see the full schematic of this, you have to click on the github link at the bottom of where the above link goes.
ReplyDeleteAfter perusing that schematic, it looks like you can build this to be buffered bypass with trails if you want. Just connect the "in" and "out" wires directly to your 1/4" jacks and use a stomp switch for the "preamp sw" - and since THAT is only a DPDT, you will have an extra row of lugs on a 3PDT for the status LED... I kind of HATE when delay trails don't fade naturally after you bypass a delay so I'm pretty pumped about this layout. Thanks Anders!!!
actually - I may have spoke too soon about that - think I need to read the circuit designer's post a bit more to figure out how to do trails bypass...🤦
ReplyDeleteokay everyone, thanks for bearing with me... think I got the buffered bypass/trails thing figured out after staring at the schematic for a few...
DeleteInput+Output to the 1/4" jacks like I said two posts earlier, then the point where you need to break the connection between the input buffer and the PT2399 is where the 1uF box capacitor connects to lug 5 of the preamp switch. So if you use a DPDT stomp, you only need to run a wire from lug 5 of the preamp switch to lug one of the stomp switch, then run a wire from lug two of the stomp switch to R/27 where lug 5 of the preamp switch would have gone. You can then use lugs 4 and 5 of the DPDT stomp for the status LED- and ground connections.
of course, that means the preamp is always coloring your signal a bit but such is the nature of most actual tape delays, too!🤷
Duuuude! Glad to see you back droppin circuits left and right. Also glad to see death cult working away and sharing info. Totally putting this circuit on a breadboard and check it out.
ReplyDeleteYes please, we need this super pedal verify¡ thank for this great job.
ReplyDeleteCrazy day. Guess what? You can tag it. Works great. Pity that for verification purposes, I use the lowest quality components that I have at hand. Now i'll just need to replace about 25 caps 🤣🤣🤣. Nice job!
ReplyDeleteNice job to you too! You beat me to it, was about to cut up a board for this...
DeleteThanks a lot for verifying!
uooo¡ verify¡, thanks a lot, I am going to build the next week.
ReplyDeleteEnjoy, the effect sounds great (as good as a Pt2399 can, but is true that is heavily molded) and both buffers are a great additiin. Be patient with caps (about 40) you'll have polyester and monolithic nightmares 🤣🤣🤣
DeleteI'm embarrassed to ask after all these years of building, but how are the lugs numbered on a dual gang pot? Let's say, looking at it from underside. Any help much appreciated.
ReplyDeletehttps://i.postimg.cc/g2kwHFvk/CPAD250-500-64600-2.jpg
DeleteMuch appreciated!
DeleteI have buit it and it sound pretty well but the sound of the repetitions is a little dirty, not all clear. What can it do? Maybe the PT23 chip? I also can I amend that there are 22 links instead 21. Thanks to upload this amazing delay pedal.
ReplyDeleteAside from the usual culprits of stray copper bits and tiny solder bridges on the underside of your board causing unwanted connections, I would definitely try a bunch of different PT2399 chips (hopefully you used sockets).
DeleteThe quality control on those things is all over the place and some make so much noise as to be practically unusable.
I have try with some PT2399 and its the same, I have listened the demo again and I have realised (min 1:09) that it is the circuit itself. However is a great delay and I love the degrade pot.
Delete