Enclosure not stated · 5 knobs
Tube Works Blue Tube RT-903
Based on the Tube Works Blue Tube· 1 other board clones it
- Category
- Overdrive
- Price
- see vendor
From the vendor
The Tube Works Blue Tube, the same board and switching as the Real Tube with a 100K series resistor before the first grid and 220K/47K in place of the 10K/10K bias divider on the second triode, plus a handwritten 100K Hi pot. A Tube Driver variant the author compared when planning his Overlord mod.
Schematic
The schematic is in the post. Open it at Revolution Deux. No KiCad fragment has been drawn for this circuit yet.
Parts list 67 rows
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Check before you build · 3 values the reader of this schematic was not sure of
- The Hi pot value is crossed out and hand-written as 100K on the drawing.
- Two '.01' labels near the tone stack have no capacitor symbols drawn.
- The tube type is not printed; 12AX7 per the post.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 25 | ||||
| R1 | 1M | 1M | read from the schematic by eye | |
| R2 | 1K | 1k | read from the schematic by eye | |
| R3 | 22K | 22k | read from the schematic by eye | |
| R4 | 1K | 1k | read from the schematic by eye | |
| R5 | 1.5K | 1.5k | read from the schematic by eye | |
| R6 | 100K | 100k | read from the schematic by eye | |
| R7 | 10K | 10k | read from the schematic by eye | |
| R8 | 10K | 10k | read from the schematic by eye | |
| R9 | 68K | 68k | read from the schematic by eye | |
| R10 | 68K | 68k | read from the schematic by eye | |
| R11 | 220K | 220k | read from the schematic by eye | |
| R12 | 47K | 47k | read from the schematic by eye | |
| R13 | 2.2K | 2.2k | read from the schematic by eye | |
| R14 | 22K | 22k | read from the schematic by eye | |
| R15 | 220K | 220k | read from the schematic by eye | |
| R16 | 2.2K | 2.2k | read from the schematic by eye | |
| R17 | 1K | 1k | read from the schematic by eye | |
| R18 | 2.2K | 2.2k | read from the schematic by eye | |
| R19 | 220K | 220k | read from the schematic by eye | |
| R20 | 1M | 1M | read from the schematic by eye | |
| R21 | 220K | 220k | read from the schematic by eye | |
| R22 | 2.2K | 2.2k | read from the schematic by eye | |
| R23 | 1.5M | 1.5M | read from the schematic by eye | |
| R24 | 1K | 1k | read from the schematic by eye | |
| R25 | 1K | 1k | read from the schematic by eye | |
| Capacitors 20 | ||||
| C1 | 47n | 47n | read from the schematic by eye | |
| C2 | 47p | 47p | read from the schematic by eye | |
| C3 | 22u | 22u | electrolytic; read from the schematic by eye | |
| C4 | 2.2u | 2.2u | electrolytic; read from the schematic by eye | |
| C5 | 12p | 12p | read from the schematic by eye | |
| C6 | 47n | 47n | read from the schematic by eye | |
| C7 | 47n | 47n | read from the schematic by eye | |
| C8 | 2.2u | 2.2u | electrolytic; read from the schematic by eye | |
| C9 | 330p | 330p | read from the schematic by eye | |
| C10 | 100n | 100n | read from the schematic by eye | |
| C11 | 47n | 47n | read from the schematic by eye | |
| C12 | 10n | 10n | label only, no symbol drawn; read from the schematic by eye | |
| C13 | 10n | 10n | label only, no symbol drawn; read from the schematic by eye | |
| C14 | 47n | 47n | read from the schematic by eye | |
| C15 | 22u | 22u | electrolytic; read from the schematic by eye | |
| C16 | 47n | 47n | read from the schematic by eye | |
| C17 | 470u | 470u | electrolytic; read from the schematic by eye | |
| C18 | 470u | 470u | electrolytic; read from the schematic by eye | |
| C19 | 220u | 220u | electrolytic; read from the schematic by eye | |
| C20 | 220u | 220u | electrolytic; read from the schematic by eye | |
| Diodes 10 | ||||
| D1 | 1N916 | 1N916 | read from the schematic by eye | |
| D2 | 1N916 | 1N916 | read from the schematic by eye | |
| D3 | 1N916 | 1N916 | read from the schematic by eye | |
| D4 | 1N916 | 1N916 | read from the schematic by eye | |
| D5 | 1N916 | 1N916 | read from the schematic by eye | |
| D6 | 1N916 | 1N916 | read from the schematic by eye | |
| D7 | 1N916 | 1N916 | read from the schematic by eye | |
| D8 | 1N916 | 1N916 | read from the schematic by eye | |
| D9 | 1N4001 | 1N4001 | read from the schematic by eye | |
| D10 | 1N4001 | 1N4001 | read from the schematic by eye | |
| Transistors 2 | ||||
| Q1 | J112 | J112 | switching; read from the schematic by eye | |
| Q2 | J112 | J112 | switching; read from the schematic by eye | |
| ICs 2 | ||||
| IC1 | TL072 | TL072 | read from the schematic by eye | |
| IC2 | TL072 | TL072 | switching flip-flop; read from the schematic by eye | |
| Potentiometers 5 | ||||
| Drive | 500K | 500k | Potentiometer | read from the schematic by eye |
| Hi | 100K | 100k | Potentiometer | printed value crossed out, 100K handwritten; read from the schematic by eye |
| Lo | 100K | 100k | Potentiometer | read from the schematic by eye |
| Mid | 10K | 10k | Potentiometer | read from the schematic by eye |
| Output | 500K | 500k | Potentiometer | read from the schematic by eye |
| LEDs 2 | ||||
| LED1 | red | RED | read from the schematic by eye | |
| LED2 | green | GREEN | read from the schematic by eye | |
| Other 1 | ||||
| V1 | 12AX7 | 12AX7 | tube; read from the schematic by eye | |
Other boards based on the Tube Works Blue Tube
- Tube Works Blue Tube Effects Layouts (blog)