Bring out yer Diptrace

[finebyfine]

"phantom" power for emg pickups, with a high ass impedance buffer for passives (I think Douglas Self said this design is 6.1MΩ). really want to throw actives in the last couple of my guitars with passives but don't want to do any routing.

 

[szukalski]

"phantom" power for emg pickups.

How does this work? You don't need the 9v battery anymore?

 

[finebyfine]

How does this work? You don't need the 9v battery anymore?

EMG sells a box that basically powers pickups via the ring contact, this is just a lot of power filtering with that, a voltage switch and a separate buffer.

ES-918

The ES-918 is an external 18 Volt power supply for EMG Pickups. If you have an instrument that doesn’t fit a battery or you don’t want to install a battery in your guitar, the ES-918 is perfect for you. You can easily power your EMG pickups with 9 or 18 volts using a stereo cable. In addition...

www.emgpickups.com

 

[szukalski]

Trying a new boost permutation (I don't dare say design since there's nothing new):

 

[finebyfine]

Trying a new boost permutation (I don't dare say design since there's nothing new):

View attachment 66508

Love the hybrid NPN footprint, I’m starting to accumulate enough to start doing that on my boards

 

[KR Sound]

Ya, I should start doing that too. Especially the labeling as well.

 

[szukalski]

Where I can, I use SMD transistors. If something ain't in production, then I try to avoid it on a layout. If it weren't for other builders, I wouldn't include the through-hole!

 

[KR Sound]

At some point, these kids gotta get with the times!

 

[Feral Feline]

Trying a new boost permutation (I don't dare say design since there's nothing new):

View attachment 66508

Where I can, I use SMD transistors. If something ain't in production, then I try to avoid it on a layout. If it weren't for other builders, I wouldn't include the through-hole!

Yeah, SMD, alas, the waive of the future for THD...

HE LIKES IT! Hey Mikey!

 

[Passinwind]

New resonant LPF for onboard preamp applications:



This version is for low tunings, with big enough cap footprints at C5 and C6 to allow using 2.5% polypro film caps in the money slots. and I made it easier to use parallel caps in those slots to get better tuning resolution, since this design can be very tweaky stability-wise.

 

[szukalski]

A quick break this afternoon. That overdrive by Dylan159.

 

[Harry Klippton]

Jack in and Jack out always makes me chuckle

 

[KR Sound]

Jack in and Jack out always makes me chuckle

I prefer to jack in, myself.

 

[Harry Klippton]

 

[finebyfine]

One for Culture Jam's Duo-Vibe (https://www.madbeanpedals.com/forum/index.php?topic=23669.0) that I banged out at work today. Stole the wave control from effectslayouts' pcb. Made the response switch a pot for little reason other than I hate asymmetric controls and wanted to still use a 4 knob tayda enclosure. Figured worst case scenario I just end up hooking up a switch to the pads.

Been wanting to try fun arced traces for a while now and after seeing some of @KR Sound 's most recent boards figured I'd do teardrops as well! Solder mask hidden here to show off both of those

 

[PedalBuilder]

I also saw the curvy traces on @KR Sound's boards and decided that I wanted some of that for me. I've also been seeing lots of super Rad Dizzy Elk builds, so I just sent this off to Shenzhen for fabrication. The board is designed for a specific set of transistors that sounded great on the breadboard (a pair of MP21E's in Q1 and Q2 and 3AX31C for Q3). No polarity protection on the board as that's being handled by the over-voltage and polarity protection circuit on my I/O breakout board. Looking forward to taking this for a spin!

 

[szukalski]

 

[Giorfida]

View attachment 66779

Someone had to say what we all were thinking!!!

 

[finebyfine]

Someone had to say what we all were thinking!!!

This is why my bypass boards say IJ and OJ. Orenthal association might be worse though

 

[szukalski]

This is why my bypass boards say IJ and OJ. Orenthal association might be worse though

OJ was innocent!