Search found 77 matches

by DavidRavenMoon
04 May 2023, 02:57
Forum: Modern Stompbox Effects (1975 - ...)
Topic: JHS/EHX Lizard Queen
Replies: 111
Views: 24004

Re: JHS/EHX Lizard Queen

I got the same reponse when I queried this "Daniel Danger 2 hours ago Because both of those are rudimentary fundamental building block circuits that existed in 1960s EE textbooks decades before someone put them on the internet in the 90s. Hemmo did not invent using 5 components to turn on a tr...
by DavidRavenMoon
20 Apr 2023, 04:06
Forum: Modern Stompbox Effects (1975 - ...)
Topic: JHS/EHX Lizard Queen
Replies: 111
Views: 24004

Re: JHS/EHX Lizard Queen

I don't get it, the guy has a successful business, he doesn't need to steal shit. I'm sure he's hired actual engineers to work at his company. Seems pretty weird to me tbh. Hell I'm not even close to being an engineer and I could be more creative than that. He doesn't design original circuits! I'm ...
by DavidRavenMoon
20 Apr 2023, 03:48
Forum: Modern Stompbox Effects (1975 - ...)
Topic: JHS/EHX Lizard Queen
Replies: 111
Views: 24004

Re: JHS/EHX Lizard Queen

You can issue a lot of complaints beyond it just being a 3PDT. Its mounted to the main board so if it fails you're going to have a much more obnoxious time replacing it regardless of manufacturer. They could have off-board wired the switch but labor costs would go up significantly on that 1000 unit...
by DavidRavenMoon
20 Apr 2023, 03:42
Forum: Modern Stompbox Effects (1975 - ...)
Topic: JHS/EHX Lizard Queen
Replies: 111
Views: 24004

Re: JHS/EHX Lizard Queen

Yes, that's right - it's an "original design". :roll: original.png Josh doesn't design original circuits. All his pedals (except maybe one) are some kind of clone of something else with a few tweaks. That's a common thing these days, and I like Josh, but he was very cavalier about cloning...
by DavidRavenMoon
19 Sep 2022, 06:30
Forum: Davidoff Library
Topic: James Barbarello, Add Fuzz to your Guitar or Bass, Popular Electronics, June 1978 🇺🇸
Replies: 1
Views: 670

Re: James Barbarello, Add Fuzz to your Guitar or Bass, Popular Electronics, June 1978 🇺🇸

I built this for the guitarist in my band back in the 80s. It's a cool sounding fuzz. Very smooth.
by DavidRavenMoon
15 Jun 2022, 21:18
Forum: Pedal Debugging & Troubleshooting Support
Topic: Boss ODB-3 bass overdrive
Replies: 16
Views: 7161

Re: Boss ODB-3 bass overdrive

Here's a question... I did a partial Wampler mod. One of the things I did was swap the LEDs for 1N4148 diodes. That sounds much smoother to me. I also changed C10 = .1µF and C8 = .033µF, the second one after trying a few values. I like the tone, but I'd like MORE distortion, so I'd like to increase ...
by DavidRavenMoon
06 Nov 2021, 07:14
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Proco - Brat
Replies: 38
Views: 22588

Re: Proco - Brat

Old thread, but you have to realize this pedal was designed to be sold to Guitar Center for like $15. Corners were cut. Also it was competing with the DOD Grunge.
by DavidRavenMoon
14 Sep 2019, 22:43
Forum: DIY Projects
Topic: EMG Active Pickup Circuit?
Replies: 213
Views: 103592

Re: EMG Active Pickup Circuit?

But they don’t. I thought so too. They are the same as their HZ passive pickups. The 81 is a pretty hot humbucker. Wait, really? Emg HZs have around 13k dcr 81's coils are ~4k dcr each. 81s are wound with 43 gauge wire. They are hotter than that. The bobbin is very full. 4 k would be hardly any wire.
by DavidRavenMoon
14 Sep 2019, 18:06
Forum: DIY Projects
Topic: EMG Active Pickup Circuit?
Replies: 213
Views: 103592

Re: EMG Active Pickup Circuit?

The humbucker I use is 4 drivers + bare :hmmm: EMG pickup has less turns than your typical humbucker. Additional winding usually introduces more noise. Also, shielding your pcb might help. But they don’t. I thought so too. They are the same as their HZ passive pickups. The 81 is a pretty hot humbuc...
by DavidRavenMoon
12 Sep 2019, 03:05
Forum: DIY Projects
Topic: EMG Active Pickup Circuit?
Replies: 213
Views: 103592

Re: EMG Active Pickup Circuit?

Hi guys, I made this preamp but I still don't understand the humbucker connection. I don't know if in series or parallel? if someone can give me a light i would appreciate :hmmm: One end of both coils does to ground. The other ends go to the (+) and (-) inputs on the op amp. So it's sort of paralle...
by DavidRavenMoon
23 Mar 2017, 19:57
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Joyo - JF-02 Ultimate Drive "2010" MISTAKE [schematic]
Replies: 35
Views: 39886

Re: Joyo - JF-02 Ultimate Drive "2010" MISTAKE [schematic]

Out of interest, have they corrected the silkscreen and the diode? Or are you saying the diode is now fitted opposite to the direction shown on the silkscreen? A clear photo would explain a lot. No. But the transistors are also reversed as compared to the OCD, so the diode is not actually in backwa...
by DavidRavenMoon
23 Mar 2017, 14:49
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Joyo - JF-02 Ultimate Drive "2010" MISTAKE [schematic]
Replies: 35
Views: 39886

Re: Joyo - JF-02 Ultimate Drive "2010" MISTAKE [schematic]

It sounds much smoother without the diode. There's something about the OCD I never liked. And it's that diode. Gives it a hard edge I didn't care for.
by DavidRavenMoon
12 Feb 2017, 20:16
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Joyo - JF-02 Ultimate Drive "2010" MISTAKE [schematic]
Replies: 35
Views: 39886

Re: Joyo - JF-02 Ultimate Drive "2010" MISTAKE [schematic]

I just picked up one of these pedals... it was $20, including shipping! ($17 and change). I've tried an OCD and actually hated it. It's got this harsh quality that sounds like op amp distortion or something. Why are they so popular? Makes me wonder why I bought this! lol Anyway, I read through this ...
by DavidRavenMoon
13 Jan 2017, 13:30
Forum: DIY Projects
Topic: Baja Music Man guitar and bass onboard preamps [documentation]
Replies: 503
Views: 183839

Re: Baja Music Man guitar and bass onboard preamps [documentation]

There are much better preamp designs out there. This one does has a certain tone due to the way the treble control is implemented, but you can get a similar tone with more conventional circuits.
by DavidRavenMoon
12 Jan 2017, 19:03
Forum: DIY Projects
Topic: Baja Music Man guitar and bass onboard preamps [documentation]
Replies: 503
Views: 183839

Re: Baja Music Man guitar and bass onboard preamps [documentation]

You can use a buffer before the preamp for high impedance pickups. That works fine. It sounds the same.
I've also used a 1M linear pot for the treble control. That works fine too.
by DavidRavenMoon
02 Jan 2017, 22:01
Forum: DIY Projects
Topic: Baja Music Man guitar and bass onboard preamps [documentation]
Replies: 503
Views: 183839

Re: Baja Music Man guitar and bass onboard preamps [documentation]

Hi, I'm working on a bass that will have 2 MM humbuckers. Although the parallel impedance is around 2kOhm for each pickup, I plan to have each pickup switchable between parallel/series/single+ghost coil. On top of that there will be a 4-way rotary pickup selector with series/parallel option. So the...
by DavidRavenMoon
29 Dec 2016, 04:21
Forum: DIY Projects
Topic: Baja Music Man guitar and bass onboard preamps [documentation]
Replies: 503
Views: 183839

Re: Baja Music Man guitar and bass onboard preamps [documentation]

Hmmm. There's the 1n8 cap right inside past the input cap. That's part of the treble tone control. But that's on the positive side of the input cap.
by DavidRavenMoon
16 Sep 2016, 22:03
Forum: DIY Projects
Topic: Baja Music Man guitar and bass onboard preamps [documentation]
Replies: 503
Views: 183839

Re: Baja Music Man guitar and bass onboard preamps [documentation]

You keep talking about the inductance of the pickup. How did you measure the inductance of the pickup? Did you actually measure a pickup? I'll tell you right now that there's pretty much only one LCR meter that can measure the inductance of pickups. And this is because of the frequencies used when d...
by DavidRavenMoon
13 Sep 2016, 23:09
Forum: DIY Projects
Topic: Baja Music Man guitar and bass onboard preamps [documentation]
Replies: 503
Views: 183839

Re: Baja Music Man guitar and bass onboard preamps [documentation]

Which preamp are you referring to? This is the original 2-band preamp. And the tone controls are unusual. The bass control is just bypassing a bass cut cap. The treble control is bleeding highs through a cap from the output of the op amp. So it's negative feedback since it's inverting. This is simi...
by DavidRavenMoon
13 Sep 2016, 12:34
Forum: DIY Projects
Topic: Baja Music Man guitar and bass onboard preamps [documentation]
Replies: 503
Views: 183839

Re: Baja Music Man guitar and bass onboard preamps [documentation]

We really should not dare to call the pickup a bright pickup because it is what it is ;-) ... and that is a low output, low impedance humbucker with coils wired in parallel to reduce dc resistance an inductance ... Technically it's not low impedance. It's medium impedance. 100 ohms would be low imp...