Akashic Guitar effects circuit lookup
CLEAN GAINBASSMIDDLETREBLECLEAN VOLUMEBRIGHTOD1 GAINOD2 GAINOD1 VOLUMEOD2 VOLUMEFATC45BOOSTCUT

1590DD · 14 knobs

HotKits

Brown Cat Preamp v.3

Based on the Friedman BE50/BE100 preamp

Want a PCB? HotKits sells this PCB from a price list, ordered by message (or by email to alex.hotkits@gmail.com): message HotKits on Facebook.

Category
Preamp / Amp-in-a-box
Controls
Clean Gain · Bass · Middle · Treble · Clean Volume · Bright · OD1 Gain · OD2 Gain · OD1 Volume · OD2 Volume · Fat · C45 · Boost · Cut
Price
$28.00in stock
See the HotKits price list Build document Sound samplesPrice list (Google Drive)Order: HotKits on FacebookHotKITs DIY community (Facebook group)

From the vendor

A compact tube guitar preamp. Three channels: Clean, OD 1 (low/mid gain) and OD2 (high gain). Each channel has Gain and Volume controls. Clean channel has a three-band EQ. OD1 and OD2 channels has a common three-band EQ. ECC83/12AX7 tubes (3 pcs) are used. Power supply: regulated mains adapter 12 VDC (load current of 1 A or more). To power the tube plates an internal DC-DC high voltage boost power converter is used (Nixie type). The dimensions of the main PCB 163 x 104 mm. Enclosure type: Hammond 1590DD.

Schematic

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

Parts list 75 rows

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RefValueNormalizedTypeNotes
Resistors 27
×11010Metal film resistors 0.6W-S 10 Ohm
×1470470Metal film resistors 0.6W-S 470 Ohm
×1820820Metal film resistors 0.6W-S 820 Ohm
×1910910Metal film resistors 0.6W-S 910 Ohm
×21k1kMetal film resistors 0.6W-S 1k
×31k51.5kMetal film resistors 0.6W-S 1k5
×12k22.2kMetal film resistors 0.6W-S 2k2
×22k72.7kMetal film resistors 0.6W-S 2k7
×14k74.7kMetal film resistors 0.6W-S 4k7
×26k86.8kMetal film resistors 0.6W-S 6k8
×610k10kMetal film resistors 0.6W-S 10k
×122k22kMetal film resistors 0.6W-S 22k
×433k33kMetal film resistors 0.6W-S 33k
×268k68kMetal film resistors 0.6W-S 68k
×3100k100kMetal film resistors 0.6W-S 100k
×3220k220kMetal film resistors 0.6W-S 220k
×4470k470kMetal film resistors 0.6W-S 470k
×1560k560kMetal film resistors 0.6W-S 560k
×61M1MMetal film resistors 0.6W-S 1M
×12M22.2MMetal film resistors 0.6W-S 2M2
×110M10MMetal film resistors 0.6W-S 10M
×14k74.7kMetal oxide film resistors 1W (or metal film resistors 1W, 1W-S) 4k7
×110k10kMetal oxide film resistors 1W (or metal film resistors 1W, 1W-S) 10k
×133k33kMetal oxide film resistors 1W (or metal film resistors 1W, 1W-S) 33k
×1470k470kMetal oxide film resistors 1W (or metal film resistors 1W, 1W-S) 470k
×8100k100kMetal film resistors 1W-S 100k
×1220k220kMetal film resistors 1W-S 220k
Capacitors 19
×110p10pCeramic disc capacitor 10p 100VCeramic disc capacitor
×2220p220pCeramic disc capacitor 220p 1kVCeramic disc capacitor
×3470p470pCeramic disc capacitor 470p 1kVCeramic disc capacitor
×1680p680pCeramic disc capacitor 680p 50VCeramic disc capacitor
×11000p1nCeramic disc capacitor 1000p 1kVCeramic disc capacitor
×110n10nCeramic disc capacitor 10n 1kVCeramic disc capacitor
×2100n100nMonolithic ceramic capacitor X7R 100n 50VMonolithic ceramic capacitor
×12n22.2nFilm capacitor (R=5mm) 2n2 63VFilm capacitor
×32n22.2nPolyester film capacitor 2n2 400VPolyester film capacitor
×222n22nPolyester film capacitor 22n 63VPolyester film capacitor
×122n22nPolyester film capacitor 22n 400VPolyester film capacitor
×147n47nPolyester film capacitor 47n 63VPolyester film capacitor
×347n47nPolyester film capacitor 47n 400VPolyester film capacitor
×1100n100nPolyester film capacitor 100n 63VPolyester film capacitor
×1100n100nPolyester film capacitor 100n 250VPolyester film capacitor
×2470n470nPolyester film capacitor 470n 63VPolyester film capacitor
×1470n470nPolyester film capacitor 470n 250VPolyester film capacitor
×3680n680nPolyester film capacitor 680n 63VPolyester film capacitor
×110u10uElectrolytic capacitor 10µ 25V 85°CElectrolytic capacitor
Diodes 4
×1UF4007UF4007Diode UF4007
×11N40011N4001Diode 1N4001
×111N41481N4148Diode 1N4148
×2BZX55C12BZX55C12 / 12VDiode BZX55C12
Transistors 6
×2LND150N3-GLND150N3-GTransistor LND150N3-G
×1BC547CBC547CTransistor BC547C
×1BC550CBC550CTransistor BC550C
×1BC557CBC557CTransistor BC557C
×3J177J177Transistor MMBF J177SMD (MMBF)
×1IRF740IRF740Transistor IRF740
ICs 1
×1NE555NE555IC NE555 DIP8
Inductors 1
×1Inductor CDRH127-221 MC 220uH 1,16AINDUCTOR CDRH127-221 MC 220UH 1,16AInductor CDRH127-221 MC 220uH 1,16A
Potentiometers 5
×1A10kA10kPotentiometer Alpha RV16AF-20-17K-A10k
×1B25kB25kPotentiometer Alpha RV16AF-20-17K-B25k
×1B250kB250kPotentiometer Alpha RV16AF-20-17K-B250k
×2A250kA250kPotentiometer Alpha RV16AF-20-17K-A250k
×7A1MA1MPotentiometer Alpha RV16AF-20-17K-A1M
Trimmers 1
×150k50kTrimmer potentiometer type 3362P 50k
Switches 1
×5Toggle switch SMTS-102-C3TOGGLE SWITCH SMTS-102-C3Toggle switch SMTS-102-C3
LEDs 4
×1Red 5mm LEDRED 5MM LEDRed 5mm LEDleads length 25mm
×1Yellow 5mm LEDYELLOW 5MM LEDYellow 5mm LEDleads length 25mm
×1Green 5mm LEDGREEN 5MM LEDGreen 5mm LEDleads length 25mm
×3Green ultra bright 3mm LEDGREEN ULTRA BRIGHT 3MM LEDGreen ultra bright 3mm LED
Other 6
×3tube 12AX7/ECC83TUBE 12AX7/ECC83Vacuum tube 12AX7/ECC83
×5Relay HFD23F-012-1ZSRELAY HFD23F-012-1ZSRelay HFD23F-012-1ZS
×1Heat sink RAD DY-CN-020HEAT SINK RAD DY-CN-020Heat sink RAD DY-CN-02022x15x10
×5Connector PBS-5CONNECTOR PBS-5Connector PBS-5
×3Connector PLS-10RCONNECTOR PLS-10RConnector PLS-10RDS1022-1x10RDF
×3Connector PLS-10R positive bendCONNECTOR PLS-10R POSITIVE BENDConnector PLS-10R positive bendDS1022-1x10RUF