Akashic Guitar effects circuit lookup
BASSGAINMASTERTREBLE

1590BB · 4 knobs

C2C Electronics

Lab Rat

Based on the ProCo RAT· 41 other boards clone it

Category
Distortion
Controls
Bass · Gain · Master · Treble
Price
$20.00in stock
Buy the PCB at C2C Electronics Build document

From the vendor

The Lab Rat is inspired by a classic aggressive op-amp distortion, with the output buffer removed and replaced with a 12AX7 running at high-voltage. The result is the same inherent distortion tone we all know and love, but with a little extra tube warmth and saturation on it. The original “filter” tone control has also been scrapped in favor of a “James” bass/treble stack for more flexibility. Lab Rat also has a nice wide frequency response, so you can easily dial in killer distorted tones on bass as well as guitar.

Schematic

The schematic is in the vendor's build document, page 5. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 40 rows

Report a wrong parse

Got parts in a drawer? See what you can build with them.

ocr read from an image · sch paired from the schematic · fixed corrected by hand. Check marked values against the build document.

RefValueNormalizedTypeNotes
Resistors 13
×147R471/4W Resistorshopping list
×2560R5601/4W Resistorshopping list
×41k1k1/4W Resistorshopping list
×11k51.5k1/4W Resistorshopping list
×12k22.2k1/4W Resistorshopping list
×14k74.7k1/4W Resistorshopping list
×110k10k1/4W Resistorshopping list
×122k22k1/4W Resistorshopping list
×2100k100k1/4W Resistorshopping list
×1120k120k1/4W Resistorshopping list
×2220k220k1/4W Resistorshopping list
×1270k270k1/4W Resistorshopping list
×21M1M1/4W Resistorshopping list
Capacitors 14
×133p33pCeramic capacitorshopping list; 50V
×2100p100pCeramic capacitorshopping list; 50V
×1470p470pCeramic capacitorshopping list; 50V
×21n1nFilm capacitorshopping list; 50V
×11n51.5nFilm capacitorshopping list; 50V
×14n74.7nFilm capacitorshopping list; 50V
×110n10nFilm capacitorshopping list; 50V
×2100n100nFilm capacitorshopping list; 50V
×12u22.2uElectrolytic capacitorshopping list; 25V
×14u74.7uElectrolytic capacitorshopping list; 25V
×210u10uElectrolytic capacitorshopping list; 25V
×110u10uElectrolytic capacitorshopping list; 250V
×147u47uElectrolytic capacitorshopping list; 16V
×1100u100uElectrolytic capacitorshopping list; 25V
Diodes 3
×1UF4007UF4007Ultra-fast rectifier diodeshopping list
×11N58171N5817Schottky diodeshopping list
×21N41481N4148Silicon diodeshopping list
Transistors 2
×12N39042N3904NPN General Purpose Amplifiershopping list
×1IRF740IRF740400V 20A N-Channel MOSFETshopping list
ICs 1
×1NE555NE555Timer ICshopping list
Inductors 1
×1100uH100uH100uH 2A Inductorshopping list
Potentiometers 4
BassA1MschA1MPotentiometer
GainA100KschA100kPotentiometer
MasterA1MschA1MPotentiometer
TrebleA1MschA1MPotentiometer
Switches 1
×1SPDTSPDTSPDT toggle switchshopping list
Other 1
×112AX712AX7Dual Triodeshopping list

Other boards based on the ProCo RAT