Akashic Guitar effects circuit lookup
DELAYCHORUS/VIBRATOLEVELFEEDBACKBLEND

Enclosure not stated · 5 knobs

Experimentalists Anonymous

EH Deluxe Memoryman Dlay

Category
Delay· Delay Echo and Samplers
Controls
Delay · Chorus/Vibrato · Level · Feedback · Blend
Price
see vendor
Tags
Delay Echo and Samplers

Schematic

The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.

Parts list 80 rows

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Check before you build · 2 values the reader of this schematic was not sure of
  • C '?': the expander capacitor on NE570 pin 9 has no value on the drawing
  • Level 1M: drawn as a variable resistor in the input op amp feedback, may be a trimmer rather than a panel pot
RefValueNormalizedTypeNotes
Resistors 40
×21010read from the schematic by eye
×3150150one is 1/2 W (power supply); two are output resistors; read from the schematic by eye
×1470470read from the schematic by eye
×1680680read from the schematic by eye
×1820820read from the schematic by eye
×21k1kread from the schematic by eye
×11.5k1.5k1/2 W, power supply; read from the schematic by eye
×22.4k2.4kread from the schematic by eye
×12.7k2.7kread from the schematic by eye
×13.3k3.3kread from the schematic by eye
×13.6k3.6kread from the schematic by eye
×15.6k5.6kread from the schematic by eye
×26.8k6.8kread from the schematic by eye
×27.5k7.5kread from the schematic by eye
×110k10kread from the schematic by eye
×211k11kread from the schematic by eye
×315k15kread from the schematic by eye
×416k16kread from the schematic by eye
×222k22kread from the schematic by eye
×124k24kread from the schematic by eye
×124.3k24.3kread from the schematic by eye
×127k27kread from the schematic by eye
×233k33kread from the schematic by eye
×133.2k33.2kread from the schematic by eye
×139k39kread from the schematic by eye
×139.1k39.1kread from the schematic by eye
×147k47kread from the schematic by eye
×150k50kread from the schematic by eye
×368k68kread from the schematic by eye
×182k82kread from the schematic by eye
×8100k100kread from the schematic by eye
×2120k120kread from the schematic by eye
×1180k180kread from the schematic by eye
×2200k200kread from the schematic by eye
×3240k240kread from the schematic by eye
×2300k300kread from the schematic by eye
×1330k330kread from the schematic by eye
×1680k680kread from the schematic by eye
×2900k900kread from the schematic by eye
×11M1Mread from the schematic by eye
Capacitors 21
×127pF27pread from the schematic by eye
×1120pF120pread from the schematic by eye
×1150pF150pread from the schematic by eye
×1240pF240pread from the schematic by eye
×21nF1nread from the schematic by eye
×11.2nF1.2nread from the schematic by eye
×62.7nF2.7nread from the schematic by eye
×122nF22nread from the schematic by eye
×133nF33nread from the schematic by eye
×247nF47nread from the schematic by eye
×20.1uF100nread from the schematic by eye
×20.22uF220nread from the schematic by eye
×10.47uF470nread from the schematic by eye
×91uF1uread from the schematic by eye
×52.2uF2.2uread from the schematic by eye
×64.7uF4.7uread from the schematic by eye
×310uF10uread from the schematic by eye
×222uF22uread from the schematic by eye
×1100uF100uread from the schematic by eye
×1220uF220uread from the schematic by eye
×1??expander NE570 pin 9 cap, value drawn as '?' on the schematic; read from the schematic by eye
Diodes 2
×1DiodeDIODEclock circuit; no part number given; read from the schematic by eye
×1Bridge rectifierBRIDGE RECTIFIER24 VAC supply rectifier, 2.2 W; no part number given; read from the schematic by eye
Transistors 2
×12N61112N6111PNP, supply pass transistor; read from the schematic by eye
×12N50872N5087PNP, level LED driver; read from the schematic by eye
ICs 4
×140474047CD4047 clock oscillator; read from the schematic by eye
×2MN3005MN3005BBDs, drawn as MN3005 A and B; read from the schematic by eye
×1NE570NE570compander, both halves used; read from the schematic by eye
×545584558dual op amp; 10 sections drawn without designators; read from the schematic by eye
Potentiometers 5
Delay100k100kPotentiometerrheostat-wired, sets clock; read from the schematic by eye
Chorus/Vibrato100k100kPotentiometerLFO depth; read from the schematic by eye
Level1M1MPotentiometerinput preamp feedback, drawn as variable resistor; read from the schematic by eye
Feedback10k10kPotentiometerread from the schematic by eye
BlendB10kB10kPotentiometermarked LIN; read from the schematic by eye
Trimmers 2
×4100k100kBBD bias/balance and filter gain trims; read from the schematic by eye
×15k5kMN3005 B balance; read from the schematic by eye
Switches 2
×1SPDTSPDTLFO switch (chorus/vibrato); read from the schematic by eye
×1SPDTSPDTSW, routes blend to echo out; read from the schematic by eye
LEDs 2
×1LEDLEDpower indicator; read from the schematic by eye
×1LEDLEDLevel (input peak) indicator; read from the schematic by eye