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Aries Voltage Controlled LPF
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- Utility· Filters Wahs and VCFs
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- Filters Wahs and VCFs
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 56 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 32 | ||||
| R2 | 150K | 150k | read from the schematic by eye | |
| R3 | 100K | 100k | 5%; read from the schematic by eye | |
| R4 | 33K | 33k | 5%; read from the schematic by eye | |
| R7 | 470K | 470k | 5%; read from the schematic by eye | |
| R8 | 100K | 100k | 5%; read from the schematic by eye | |
| R9 | 1M | 1M | 5%; read from the schematic by eye | |
| R11 | 10 | 10 | 10 ohm; read from the schematic by eye | |
| R12 | 4.7K | 4.7k | read from the schematic by eye | |
| R14 | 330K | 330k | 5%; read from the schematic by eye | |
| R15 | 100K | 100k | read from the schematic by eye | |
| R16 | 100 | 100 | 100 ohm; read from the schematic by eye | |
| R17 | 100 | 100 | 100 ohm; read from the schematic by eye | |
| R18 | 100K | 100k | read from the schematic by eye | |
| R19 | 100K | 100k | read from the schematic by eye | |
| R21 | 4.7K | 4.7k | read from the schematic by eye | |
| R22 | 100K | 100k | read from the schematic by eye | |
| R23 | 12K | 12k | read from the schematic by eye | |
| R24 | 39 | 39 | 39 ohm; read from the schematic by eye | |
| R25 | 4.7K | 4.7k | read from the schematic by eye | |
| R26 | 15K | 15k | read from the schematic by eye | |
| R27 | 39 | 39 | 39 ohm; read from the schematic by eye | |
| R29 | 100K | 100k | read from the schematic by eye | |
| R30 | 1K | 1k | read from the schematic by eye | |
| R31 | 1K | 1k | read from the schematic by eye | |
| R32 | 1K | 1k | read from the schematic by eye | |
| R33 | 1K | 1k | to test point; read from the schematic by eye | |
| R34 | 100K | 100k | read from the schematic by eye | |
| R35 | 100K | 100k | read from the schematic by eye | |
| R36 | 100K | 100k | read from the schematic by eye | |
| R39 | 100K | 100k | 5%; read from the schematic by eye | |
| R40 | 100K | 100k | 5%; read from the schematic by eye | |
| R41 | 100K | 100k | 5%; read from the schematic by eye | |
| Capacitors 8 | ||||
| C1 | .01uF | 10n | supply bypass; read from the schematic by eye | |
| C2 | .01uF | 10n | supply bypass; read from the schematic by eye | |
| C3 | .001uF | 1n | read from the schematic by eye | |
| C4 | 30pF | 30p | LM301A compensation; read from the schematic by eye | |
| C5 | 330pF | 330p | read from the schematic by eye | |
| C6 | 150pF | 150p | read from the schematic by eye | |
| C7 | 330pF | 330p | read from the schematic by eye | |
| C8 | 150pF | 150p | read from the schematic by eye | |
| Transistors 2 | ||||
| Q4 | E212 | E212 | N-channel JFET; read from the schematic by eye | |
| Q5 | E212 | E212 | N-channel JFET; read from the schematic by eye | |
| ICs 5 | ||||
| U1 | LM301A | LM301A | read from the schematic by eye | |
| U2 | CA3080 | CA3080 | OTA; read from the schematic by eye | |
| U3 | LM301A | LM301A | read from the schematic by eye | |
| U4 | CA3080 | CA3080 | OTA; read from the schematic by eye | |
| U5 | LM301A | LM301A | read from the schematic by eye | |
| Potentiometers 4 | ||||
| Initial Freq | B100K | B100k | Potentiometer | R1, drawn LIN.; read from the schematic by eye |
| R37 | 100K | 100k | Potentiometer | signal input B level; read from the schematic by eye |
| R38 | 100K | 100k | Potentiometer | control input L level; read from the schematic by eye |
| Q | A1M | A1M | Potentiometer | R28, drawn LOG "Q"; read from the schematic by eye |
| Trimmers 4 | ||||
| R5 | 50K | 50k | 1V/Oct trim; read from the schematic by eye | |
| R6 | 50K | 50k | Freq trim; read from the schematic by eye | |
| R13 | 10K | 10k | Symmetry trim; read from the schematic by eye | |
| R20 | 50K | 50k | Offset trim; read from the schematic by eye | |
| Other 1 | ||||
| U6 | Exponential converter | EXPONENTIAL CONVERTER | separate exponential converter module (pins 1-6), not detailed on this sheet; read from the schematic by eye | |