Akashic Guitar effects circuit lookup
GAINBASSMIDDLETREBLEVOLUMEBRIGHT

1590BB2 · 6 knobs

HotKits

Vesuvius 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.

Controls
Gain · Bass · Middle · Treble · Volume · Bright
Price
$16.00in stock

From the vendor

Tube guitar preamp. Two channels: Clean (Marshall Super Lead Hi Treble channel based) and Overdrive (Diezel VH4 Third channel based). Each channel has Gain and Volume controls, as well as a three-band EQ. By using a MOS-FET LND150 as a "cathode follower" and also in the first gain stage, it was possible to use only 1 vacuum tube (ECC83/12AX7). 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 99 x 84 mm. Enclosure type: Hammond 1590BB2.

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 61 rows

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RefValueNormalizedTypeNotes
Resistors 18
×1430430Metal film resistors 0.6W-S 430 Ohm
×3680680Metal film resistors 0.6W-S 680 Ohm
×1910910Metal film resistors 0.6W-S 910 Ohm
×31k1kMetal film resistors 0.6W-S 1k
×22k22.2kMetal film resistors 0.6W-S 2k2
×14k74.7kMetal film resistors 0.6W-S 4k7
×610k10kMetal film resistors 0.6W-S 10k
×122k22kMetal film resistors 0.6W-S 22k
×139k39kMetal film resistors 0.6W-S 39k
×347k47kMetal film resistors 0.6W-S 47k
×182k82kMetal film resistors 0.6W-S 82k
×1100k100kMetal film resistors 0.6W-S 100k
×1220k220kMetal film resistors 0.6W-S 220k
×7470k470kMetal film resistors 0.6W-S 470k
×51M1MMetal film resistors 0.6W-S 1M
×33M33.3MMetal film resistors 0.6W-S 3M3
×4100k100kMetal film resistor 1W-S (d3.5 L10) 100k
×210k10kMetal (or metal oxide) film resistor 1W 10k
Capacitors 19
×1100p100pCeramic disc capacitor 100p 50VCeramic disc capacitor
×1220p220pCeramic disc capacitor 220p 1kVCeramic disc capacitor
×2470p470pCeramic disc capacitor 470p 1kVCeramic disc capacitor
×1560p560pCeramic disc capacitor 560p 1kVCeramic disc capacitor
×1100n100nMonolithic ceramic capacitor X7R 100n 50VMonolithic ceramic capacitor
×310n10nCeramic disc capacitor 10n 1kVCeramic disc capacitor; SMD 1812
×11n1nPolyester film capacitor (R=5mm) 1n 400VPolyester film capacitor
×12n22.2nFilm capacitor (R=5mm) 2n2 63VFilm capacitor
×12n22.2nPolyester film capacitor (R=5mm) 2n2 400VPolyester film capacitor
×14n74.7nPolyester film capacitor (R=5mm) 4n7 400VPolyester film capacitor
×110n10nPolyester film capacitor (R=5mm) 10n 63VPolyester film capacitor
×522n22nPolyester film capacitor (R=5mm) 22n 63VPolyester film capacitor
×2100n100nPolyester film capacitor (R=7.5mm) 100n 250VPolyester film capacitor
×11u1uElectrolytic capacitor 1µ 50V 85°CElectrolytic capacitor
×12u22.2uElectrolytic capacitor 2µ2 25V 85°CElectrolytic capacitor
×122u22uElectrolytic capacitor 22µ 16VElectrolytic capacitor
×147u47uElectrolytic capacitor 47µ 16V 85°CElectrolytic capacitor
×310u10uElectrolytic capacitor 10µ 400V 105°C Low ESRElectrolytic capacitor; d10 h20
×1470u470uElectrolytic capacitor 470µ 25V 105°CElectrolytic capacitor; d10 h14
Diodes 3
×1UF4007UF4007Diode UF4007
×11N40071N4007Diode 1N4007
×71N41481N4148Diode 1N4148
Transistors 5
×1IPA60R180P7SIPA60R180P7STransistor IPA60R180P7S
×3LND150N3-GLND150N3-GTransistor LND150N3-G
×1MMBFJ177MMBFJ177Transistor MMBFJ177
×1BC847CBC847CTransistor BC847C
×1BC857CBC857CTransistor BC857C
ICs 1
×1NE555NE555IC NE555 SO8
Inductors 1
×1Inductor CDRH127-221 MC 220uH 1.16AINDUCTOR CDRH127-221 MC 220UH 1.16AInductor CDRH127-221 MC 220uH 1.16A
Potentiometers 5
×2B25kB25kPotentiometer Alpha RV16AF-20-15K-B25k
×2B250kB250kPotentiometer Alpha RV16AF-20-15K-B250k
×1A250kA250kPotentiometer Alpha RV16AF-20-15K-A250k
×2A500kA500kPotentiometer Alpha RV16AF-20-15K-A500k
×3A1MA1MPotentiometer Alpha RV16AF-20-15K-A1M
Switches 1
×1Toggle switch SMTS-102-2C3TOGGLE SWITCH SMTS-102-2C3Toggle switch SMTS-102-2C3
LEDs 3
×1Blue ultra bright 3mm LEDBLUE ULTRA BRIGHT 3MM LEDBlue ultra bright 3mm LED
×1White 5mm LEDWHITE 5MM LEDWhite 5mm LED
×1Red 5mm LEDRED 5MM LEDRed 5mm LED
Other 5
×1tube 12AX7/ECC83TUBE 12AX7/ECC83Vacuum tube 12AX7/ECC83
×2Relay HFD23-012-1ZSRELAY HFD23-012-1ZSRelay HFD23-012-1ZS
×4Connector PBS-5CONNECTOR PBS-5Connector PBS-5
×1Connector PLS-40RCONNECTOR PLS-40RConnector PLS-40RDS1022-1x40R
×1Heat sink RAD DY-CN-020HEAT SINK RAD DY-CN-020Heat sink RAD DY-CN-02022x15x10