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GAINBASSMIDDLETREBLEVOLUME

1590BB2 · 5 knobs

HotKits

Magnum Tube Overdrive

Based on the Tubesteader Magnezium based

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
Overdrive
Controls
Gain · Bass · Middle · Treble · Volume
Price
$14.00in stock
See the HotKits price list Build document Sound samplesPrice list (Google Drive)Order: HotKits on FacebookHotKITs DIY community (Facebook group)

From the vendor

Tube overdrive pedal, designed based on the schematic of Tubesteader Magnezium Tube Preamp, capturing the growling tones of a Southern rock icon. Gain and volume control, three-band EQ. Two vacuum tube ECC83/12AX7 or 6Н2П-ЕВ are used. 6Н2П-ЕВ/12AX7 switchable heater via jumpers on the tube board. True bypass (relay). 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 84 x 100 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 42 rows

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RefValueNormalizedTypeNotes
Resistors 13
×1820820Metal film resistors 0.6W-S 820 Ohm
×31k1kMetal film resistors 0.6W-S 1k
×12k72.7kMetal film resistors 0.6W-S 2k7
×13k33.3kMetal film resistors 0.6W-S 3k3
×310k10kMetal film resistors 0.6W-S 10k
×156k56kMetal film resistors 0.6W-S 56k
×1100k100kMetal film resistors 0.6W-S 100k
×3470k470kMetal film resistors 0.6W-S 470k
×21M1MMetal film resistors 0.6W-S 1M
×156k56kMetal film resistor 1W-S 56kd3.5 L10
×3100k100kMetal film resistor 1W-S 100kd3.5 L10
×110k10kMetal oxide film resistor 1W 10k
×1470k470kMetal film resistor 1W 470k
Capacitors 11
×4470p470pCeramic disc capacitor 470p 1kVCeramic disc capacitor
×1680p680pCeramic disc capacitor 680p 1kVCeramic disc capacitor
×110n10nCeramic disc capacitor 10n 1kVCeramic disc capacitor
×1100n100nMonolithic ceramic capacitor X7R 100n 50VMonolithic ceramic capacitor
×12n22.2nFilm capacitor (R=5mm) 2n2 63VFilm capacitor
×322n22nPolyester film capacitor (R=10mm) 22n 400VPolyester film capacitor
×12n22.2nPolyester film capacitor (R=5mm/7.5mm/10mm) 2n2 400VPolyester film capacitor
×1680n680nPolyester film capacitor (R=5mm) 680n 63VPolyester film capacitor
×122u22uElectrolytic capacitor 22µ 25V 85°CElectrolytic capacitor; d5.5 h11
×210u10uElectrolytic 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
×21N41481N4148Diode 1N4148
Transistors 3
×1BC547CBC547CTransistor BC547C
×1BC557CBC557CTransistor BC557C
×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 4
×1B25kB25kPotentiometer Alpha RV16AF-20-15K-B25k
×2A250kA250kPotentiometer Alpha RV16AF-20-15K-A250k
×1A1MA1MPotentiometer Alpha RV16AF-20-15K-A1M
×1A500kA500kPotentiometer Alpha RV16A01F-20-15K-A500k
LEDs 1
×2Red ultra bright 3mm LEDRED ULTRA BRIGHT 3MM LEDRed ultra bright 3mm LED
Other 5
×2tube 12AX7/ECC83TUBE 12AX7/ECC83Vacuum tube 12AX7/ECC83or 6H2П-EB
×1Relay HFD27/012-SRELAY HFD27/012-SRelay HFD27/012-S
×1Connector PLS-40RCONNECTOR PLS-40RConnector PLS-40RDS1022-1x40RDF
×2Connector PLS-2CONNECTOR PLS-2Connector PLS-2DS1021-1x2
×1Heat sink RAD DY-CN-020HEAT SINK RAD DY-CN-020Heat sink RAD DY-CN-02022x10x15