Earthquaker Devices Zap Machine V2
I've been hunting down this pedal for a while after EQD featured it on their youtube channel.
This is second version, 350 made for prymaxe. There is a V1 of which only ~20 were made.
Here is my guess for V1 based on the screenshot below from that youtube video. THIS IS AN APPROXIMATION, USE WITH CAUTION.
Specifically, I'm not sure about the emitter connection for Q2, either the 1K or 470R might be an emitter resistor.
This is second version, 350 made for prymaxe. There is a V1 of which only ~20 were made.
Here is my guess for V1 based on the screenshot below from that youtube video. THIS IS AN APPROXIMATION, USE WITH CAUTION.
Specifically, I'm not sure about the emitter connection for Q2, either the 1K or 470R might be an emitter resistor.
- Attachments
-
- zapmachinev1guess.pdf
- (16.47 KiB) Downloaded 97 times
-
- zapmachinev2.pdf
- (19.97 KiB) Downloaded 125 times
- Nocentelli
- Tube Twister
Information
- Posts: 2222
- Joined: 09 Apr 2009, 07:06
- Location: Leeds, UK
- Has thanked: 1155 times
- Been thanked: 954 times
modman wrote: ↑ Let's hope it's not a hit, because soldering up the same pedal everyday, is a sad life. It's that same ole devilish double bind again...
Pretty much. Different tone control, no buffer, germanium Q3, otherwise you're basically there.
Could also mod a scarab deluxe in a V1 by pulling Q4 and connecting a 1u cap from the base through-hole of Q4 straight to the volume pot. Maybe swap Q3 for a low gain germ if so inclined.
- Nocentelli
- Tube Twister
Information
- Posts: 2222
- Joined: 09 Apr 2009, 07:06
- Location: Leeds, UK
- Has thanked: 1155 times
- Been thanked: 954 times
Yeah, that's the SWTC isn't it? Don't see it in many commercial pedals (the pre-Q1 bass cap blend is also not too common, as soon as I saw it I thought of the scarab)
modman wrote: ↑ Let's hope it's not a hit, because soldering up the same pedal everyday, is a sad life. It's that same ole devilish double bind again...
Yep, last one on this page: http://www.muzique.com/lab/swtc.htm. Should have given a shoutout in my video but I didn't realize it at the time.Nocentelli wrote: ↑30 Mar 2023, 07:55Yeah, that's the SWTC isn't it? Don't see it in many commercial pedals (the pre-Q1 bass cap blend is also not too common, as soon as I saw it I thought of the scarab)
- Attachments
-
- GBEZapFuzz.zip
- (172.12 KiB) Downloaded 85 times
- Ben N
- Cap Cooler
Thanks! That's great news about Bugg (I've built on a lot of his pcbs), but I think I like your single channel version better--it does everything the original does, but without extra size & complexity.graybench wrote: ↑24 Apr 2023, 12:48Sure thing, attached.
Also Bugg has a PCB coming out: https://www.pedalpcb.com/product/pcb580/
I've had a bunch of people asking for more, so I think I am going to do one more order for PCBs. I'm not trying to be a PCB seller though, but I get what you're saying about the single channel thing.Ben N wrote: ↑24 Apr 2023, 13:55Thanks! That's great news about Bugg (I've built on a lot of his pcbs), but I think I like your single channel version better--it does everything the original does, but without extra size & complexity.graybench wrote: ↑24 Apr 2023, 12:48Sure thing, attached.
Also Bugg has a PCB coming out: https://www.pedalpcb.com/product/pcb580/