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Topics - Aentons

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Open Discussion / JST connectors
« on: December 05, 2019, 09:46:39 PM »
Any recommendations on small JST type connectors?
I'm looking to streamline the connections on a modular multi-pedal type thing. Footswitch, Power and audio jacks stay connected to the enclosure, while the main board is interchangeable.

In a summing amplifier, it seems that most of what i've seen uses an inverting opamp configuration, but sometimes I see one that is non-inverting such as the ROG Splitter-Blend. I understand that the non-inverting "virtual earth" eliminates source interaction. Is there interaction with a non-inverting config? Just curious why or in what circumstances you would use one over the other?


Open Discussion / Smallest synth - midi din powered!
« on: October 23, 2019, 09:33:31 AM »

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Open Discussion / VFE 3rd party manufacturer?
« on: October 17, 2019, 03:32:20 PM »
Peter from VFE mentions a couple of times in his indegogo campaign for the new pedal format and switching system that it is in preparation for a new 3rd party manufacturer.

"Parts of the funds will be used to re-design the original VFE Pedal lineup, in preparation of a re-launch of these pedals by a 3rd party in 2021."

Anybody heard anything about who it might be, just curious?

Open Discussion / Humbucker with separate coil volumes and master
« on: September 16, 2019, 11:56:25 AM »
Let me preface by saying that, I like lots of options...

I've been toying with some ideas for revamping the wiring in my SG. Just wondering if anyone has ever done independent coil volumes on humbuckers, and if so, what did you think?

I have a 4 wire 490r/498t set and in the past have had them in a 4 knob, all push/pull type setup where pulling the volume knob grounded one of the coils. Pulling the tones did in/out phase and parallel/series.

I don't want to do push/pulls again since I learned the hard way that they tend to just keep on pulling out when you try to remove the knob.

I could prob get away with larger concentric pots for the coil volumes and lose the master, but I like the idea of a having a master if possible.

So... (I think) What I'd like to do is give each of the 4 coils it's own small volume control in the form of a trimmer or thumbwheel in order to balance the volumes against each other and maybe turn down the overall output (when the master is at full) and the have all the in-between, not quite split tones. I have seen this refered to as a "spin a split'. But.. it's usally only implemented for one of the coils. I'd like to do it for both coils AND keep the 2 larger stock volume controls as master volumes.

At the same time, I plan on having the option to series/parallel switch the coils as well as the 2 humbuckers. I'll likely put controls on the back cover. Anybody have any experience with anything like this?

Another thing that I'm not sure of that I want to take into consideration before I start wiring is the series wiring order of the coils and humbuckers and if that even really matters much.

General Questions / A/B switcher with remote footswitch?
« on: September 04, 2019, 12:53:45 PM »
Can anybody point me in the right direction for
a schematic to something like this?

Basically, I just want to switch my Vox Normal and Top Boost inputs and minimize any crosstalk noise while keeping the signal switching at the amp.

Edit: Sorry, I just saw that there is a Softie "Momentary Relay Bypass" listed as coming soon and realized that it is prob just what I need... that's good stuff

General Questions / "Warp" control blending issue
« on: August 03, 2019, 02:18:44 PM »
So I've noticed that on some of the VFE pedals  that have the variable diode blending, that the effected signal seems like it sits behind some clean signal, or the signal does not always fully go thru one side or the other like it would when using a real switch.

I did some research and these seem to be what are refered to as a "Warp" control.

This is how the VFE site explains it:
"Variable HCC circuitry allows you to fine tune the harmonics, compression, and clipping character of your tone."

In particular, the Red Horse has a seemingly always on clean signal and the distortion sort of sits behind/under it in the mix. The Scream will also not blend all the way over to the silicon diodes side of the pot(set the internal switch so th middle position uses LEDs and you will still see them light up)

Is this just inherent in the design of this type of blending, or are there different component values that could mitigate or correct it?

I know the 3 knob triangle is the classic and each layout really depends on the circuit and its capabilities, but I'm looking for opinions on if there is generally something more preferable, like if you had to pick a standard or two. How many knobs, switches, what size, staggered, rotary, etc.. Give examples or pics if you can please... like 4 knobs in a square, 3 big 3 little vfe style, 2 rows of 6 like EQD and Chase Bliss. Also, some are tweakers and some like to keep it simple, so please state if you slant one way or the other.

Build Reports / VFE-MB Modular Mini Mega
« on: July 18, 2019, 08:12:50 PM »
Modularized with sockets and faceplates for ease of swapability. In a hand brushed 1590DD.
I'm planning at least another triple in a 1590DD to be connected with a hinge to this one.

VFE Projects / VFE Board List
« on: July 10, 2019, 08:58:07 AM »
I am a VFE fan so I just wanted to put this list out there to show how much stuff VFE has put out there over the years, and to encourage others to purchase the board and schematic bundle that is for sale on the VFE site before the option is gone. Peter has been very generous in making whatever he can available to encourage learning and I very much appreciate it.

The list below shows what is INCLUDED *** in the download bundle, and all the others that are not. If you know of anything else, please let me know. ( PS, I'd love to see the ROG "Standard"  format boards become available )

I have been maintaining a VFE spreadsheet that has some more info.
Here is the link to the full list, with notes:

--- Educational Series
A&A Booster
Charge Pump Daughter Board

--- Junior Series
Alpha Dog Jr ***
Blueprint Jr. ***
Blues King Jr ***
Bumblebee Jr. ***
Distortion3 Junior
Fiery Red Horse Junior
Fuzz Solo ***
Old School Jr ***
Pale Horse Jr. ***
Rocket EQ Jr ***
The Scream Jr. ***

--- Klein Bottle Series
KleinBottle ***
KleinBottleSMD ***

--- Live Series
Choral Reef ***
Dragon ***
Mermaid ***
Pinball ***
Red Wolf
Rise And Fall
Standout ***

--- Licensed Standard Series
Runoffgroove 22/7
Runoffgroove Azabache
Runoffgroove Britannia
RunOffGroove Eighteen
Runoffgroove Ginger
RunoffGroove Supreaux Deux
Runoffgroove Thor
Runoffgroove Tri-Vibe
Runoffgroove Umble
Runoffgroove Uno
BYOC 5-knob comp
BYOC Bass Chorus
BYOC Bass Overdrive
BYOC Envelope Filter & Fixed Wah
BYOC Multiband Comp
BYOC Phase Royal

--- Standard Series
5:00 Fuzz ***
5:00 Fuzz IC ***
Alpha Dog ***
Alpha-Tron III ***
Blueprint ***
Blueprint Bright
Blueprint Tap Tempo
Blueprint Trails
Blues King ***
Bumblebee ***
Chernobyl ***
Choral Reef Twin ***
ChoralReef ***
Dark Horse ***
Dark Horse Mids ***
Dark Horse Original ***
DDTP2 ***
Distortion3 ***
Distortion3 Boost ***
Distortion3 Original ***
Dragon Hound ***
Dragon Hound Gang ***
Driver EQ ***
Electra LPB ***
Fiery Red Horse ***
Fiery Red Horse Vintage
Focus ***
Fuzz Cocktail ***
Fuzz Duo ***
Fuzz Duo Buffer ***
Galaxy Star ***
Homing Missile ***
Ice Scream ***
Merman ***
Mini Mu ***
Mini Mu LFO
Mobius Strip ***
Mobius Strip Mix ***
Old School ***
Old School Deluxe ***
Old School Original ***
Pale Horse ***
Pale Horse Bass ***
Pale Horse MOSFET ***
Preamp ***
Rocket EQ ***
Rocket EQ 1-band ***
RUP ***
Shredmeister ***
Solo Ranger ***
Springboard ***
The Scream ***
The Triplet ***
Tractor Beam ***
Tractor Beam Wide Load ***
Triumvirate ***
TTT Ocatver ***
Whirlybird ***
White Horse ***
Woodchipper ***
Woodchipper Original
Wooly Bear ***
Yodeler ***
Yodeler Switch ***

--- Switching
Balanced DI ***
Double + Master ***
Double Pedal TSB ***
Ground FX ***
Megapedal ***
Mic Pre ***
OA bal-buff ***
Single Channel ***
Stereo Out ***
Triple Pedal TSB ***
TrueSoft Bypass ***
TSB9 ***

--- Other
JFET Matcher ***
Tap Tempo ***

--- Templates
Junior Series ***
Standard Series ***

Open Discussion / EHX Klein Bottle
« on: July 03, 2019, 07:18:06 PM »
Looks like EHX might have taken some inspiration from the Klein Bottle. $140 is not bad...

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What are these splashes/stains artifacts and how can I get rid of them?

I'm ordering parts for a Fiery Red Horse and Mouser is out of the NJM4580DD so I started looking at the datasheets and noticed this in the doc:

"The D-Rank type products(NJM4580DD/LD/MD/ED) have specified maximum limits for equivalent input noise voltage."

The only difference I see is the test condition and typical vs max rating as seen in the screen shot. I assume that this means that the DD is less noisy. I'm curious what this actually means and how important it is for a high gain circuits like a muff?

Also, in the datasheet for the RC4580IP I noticed this:
"Place 0.1-μF bypass capacitors close to the power-supply pins to reduce errors coupling in from noisy or high
impedance power supplies"

Is this related?

The FRH doesn't seem to have the noise reducing caps.

General Questions / Source for scored ribbon cable?
« on: June 14, 2019, 11:31:57 AM »
Anybody have a good source for ribbon cable where the wires are not right next to each other (preferably 2.5mm/.1" pitch) and that is scored for easy separation?

Also looking for options on whatever would be the best type of small quick connect for this. ie. good for audio and power)

Open Discussion / Wireless LED
« on: June 02, 2019, 06:46:42 PM »
Mind just blown.... sharing again

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