Akashic Guitar effects circuit lookup

Searching and filtering

The Circuits page is the whole library in one table. The search box narrows it by what you type, the filters on the left narrow it further, and the address bar keeps both, so any list you build can be bookmarked or sent to someone.

The search box

One box searches everything at once:

  • the circuit's name and subtitle,
  • the pedal it is based on,
  • its category and effect type, its vendor and its enclosure,
  • the active parts in its parts list: ICs, transistors, diodes, optocouplers,
  • its tags and the names of its controls.

A few rules make it behave:

  • Every word must match. phaser 125B lists phasers that fit a 125B, not every phaser and every 125B board.
  • Words match from the start. muf finds Muff and trem finds Tremolo, so you can stop typing early.
  • Small typos are forgiven in words longer than four letters: tremelo still finds tremolos. Short words and part numbers must be exact.
  • Control names match whole words only, so rat finds the Rat and not every circuit with a Rate knob.
  • The best match comes first. A word in the circuit's name counts most, then the pedal it is based on, then its parts.
TryFinds
big muffBoards named after or based on a Big Muff.
PT2399Circuits built around one chip: here, the delay chip in most DIY delays.
2N5088 fuzzFuzzes that use a 2N5088.
blendCircuits with a Blend knob, as well as any named Blend.
aion chorusOne vendor's choruses.

While a search is on, the list is ranked by match and the Sort menu is off. Clear the search to sort by name, vendor, price or the size of the parts list.

Filters

The column on the left (above the list on a narrow screen) filters the list. Each choice is a chip; press it again to turn it off.

My bench
Only the circuits you have kept. See My bench.
Build
PCB, Vero, Perfboard, Tagboard, Turret board. Verified layouts keeps layouts their source marks as built and working.
Vendor
The source of the circuit.
Category
Overdrive, Fuzz, Delay, Utility and the rest.
Enclosure
The eight most common box sizes in the current list.
Knobs
How many controls the circuit has.
Controls
Named controls such as Bias, Blend or Presence; More shows the full set. Spellings are grouped, so Vol, Level and Output count as Volume.
In stock only
Drops boards the vendor shows as out of stock or no longer lists.

How they combine:

  • Two chips in the same group mean either: Fuzz and Overdrive lists both.
  • Chips in different groups mean both: Fuzz and 1590B lists fuzzes in a 1590B.
  • Controls are the exception: choose Bias and Blend and every circuit listed has both.
  • The number on a chip is how many circuits you would see if you chose it, given everything else that is on.

Above the table, the chips you have applied are listed with a × to remove each, and Clear all starts over. Clicking an original in the Based on column filters to every circuit based on it. Collapse all folds the filter groups out of the way.

Reading the table

The small drawing at the start of each row is the circuit's faceplate: the enclosure at its real proportions, with the knobs laid out the way you would drill them, the LED and the footswitch. A gray box means the controls are not known. Above, a 1590B with four knobs, a 125B with three and a 1590BB with six.

Circuit
The name, linking to its page, with tags: the build if it is not a PCB (with the board size of a layout), Bench if you have kept it, Verified or Unverified for a layout, and the first few active parts.
Based on
The original; click it to list every circuit based on it. Gray text is the source's own wording where it names no pedal Akashic knows, and a dash means it names none, usually because the design is its own.
Box
The enclosure; a dash where the source does not say.
Price
The vendor's list price in the currency you choose, marked when out of stock. Free layouts and schematics have none.
BOM
How many rows its parts list has; a dash means no parts list could be read.

The Prices menu shows every price in dollars, euros or pounds, converted at the European Central Bank's rates, or As listed in the vendor's own currency. Your choice is remembered in this browser.

Share or bookmark a search

Every search and filter is in the page's address, so copying it copies the list. For example, fuzzes in a 1590A that are in stock. The parts of the address, if you want to write one by hand:

KeyMeans
q=the search words
based=an original, as spelled on the Originals page
part=an active part, such as LM308
cat= enc= vendor= build= ctl=category, enclosure, vendor, build and control filters; separate several with commas
knobs=a knob count
stock=1 verified=1 bench=1in stock only, verified layouts only, my bench only

Something here wrong or missing? Open an issue.