Building an Analog Delay--Boss Dm-3

[tehfunk]

OK, so I found a layout and a friend wanted me to build them an analog delay, and this is basically what he wants, so I see that all the parts for this pedal are available and inexpensive, at least relatively since it's a delay pedal. So I was planning on using an ne571/sa571, a v3205, a v3102, and even the 2sc732 transistors from the original. So my question is, this doesn't come out as being much more expensive than your typical digital delay, so why when I searched did I struggle to find build reports? I mean is there something wrong with it, is it very hard to tweak right and get a successful build. So, anyone who has any information in general about a build like this, or who has actually built a dm-3 or dm-2 please give me your input. Thanks.
Here is a link to the project I found on here.
http://www.diystompboxes.com/smfforum/index.php?topic=63923.0

[space_ryerson]

I use a Tokai TDL-1, which is pretty close to a DM-2 and DM-3. It's my favorite delay, but I use delays in an odd way. I remember some time back, somebody here DIY'ed one. I know that there's a schematic floating around as well. I always thought people leaned towards building digital delays, since the chips were more easily obtained. I know that there's an error on the TDL-1's pcb, but if you want gut shots of both the trace and component sides of the PCB, I can take some the next time I have it open.

[tehfunk]

I use a Tokai TDL-1, which is pretty close to a DM-2 and DM-3. It's my favorite delay, but I use delays in an odd way. I remember some time back, somebody here DIY'ed one. I know that there's a schematic floating around as well. I always thought people leaned towards building digital delays, since the chips were more easily obtained. I know that there's an error on the TDL-1's pcb, but if you want gut shots of both the trace and component sides of the PCB, I can take some the next time I have it open.

Thanks, but he wants me to build him a dm-3 and what I'm wondering is why there is almost no talk about diying these guys when there is a working layout out there, and the chips at the heart of these pedals are now so reasonable, I mean only a few bucks each, so is there something I'm missing before I go and buy the parts and attempt to build one? Thanks.
-Sam

[tehfunk]

anybody?

[Dan N]

Metal Guy confirms the layout in the thread you linked. Go for it!

[anchovie]

I suspect the main reasons why you haven't seen build reports on this are:

- the popular DIY delays (PT-80, Rebote) are based around the PT2399 chip which has been widely available for a reasonably long time. The Coolaudio BBDs are relatively recent - before that getting a NOS 3205 might have been a bit trickier.

- the PT-80 and Rebote have ready-to-solder PCBs available (from GGG and Tonepad respectively).