I did some testing of a WAD (Wilson Analog Delay) last week.
It's an amazing effects unit quite unlike anything I own.
The WAD is so hard to find these days due to the rarity of its components.
.. those SAD1024 chips.
The SAD1024 is a 512 stage bucket brigade analog delay chip
It has 2 independent delay sections.
The Bucket Brigade consists of a series of capacitors that pass the analog signal
like a line of people carrying buckets of water to put out a fire.
The analog signal in each capacitor is forwarded to the next stage using transistors that act a switches.
The rate is determined by an external clock.
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It's difficult to say what portion of the WAD's magic is due to the SAD1024 but for the record
these also use it:
- Ace-Tone EH-50 Delay
- ADA Flanger (Early ones)
- Anderton Flanger
- BEL ELECTRONICS Delay/Flanger BA-40
- Boss Flanger BF-1
- Dynacord DC300-e
- DDD Flanger 640
- EHX Electric Mistress
- EHX Deluxe Memory Man (4 knob)
- EHX Memory Man Solid State Delay
- EHX Memory Man Echo/Chorus (non stereo)
- EHX Slapback Echo
- EHX Stereo Slapback Echo
- EHX Small Clone (not all)
- EHX Deluxe Electric Mistress
- EHX Clone Theory (w/Edge switch)
- HARMONY Synthesizer
- KORG some keyboards
- IBANEZ Flanger FL-305
- LUPINE Systems SAD1024 Delay
- MAXSON MP-DL201 Flanger
- MONTGOMERY APPLIANCES 77 Flanger (ADA Flanger Clone)
- MXR Analog Delay - but NOT the M-118 version, I am pretty sure it was called M-117
- PAiA flanger
- Roland - some guitar pedals
- Ross Flanger (Stereo delay R-80)
- Sovtek Electric Mistress (prototype)
- Tel-Ray Morley Chorus - Flanger CFL
- Vox 1902 Flanger (1981)
Links:
- EGRES
- muffs1
- Ken Stone - CGS208
Ebay has a few of these chips but who knows the quality. Or you could "borrow" them from existing pedals though I think that's sad (no pun intended).
An alternative chip could be the MN3007. Its also a bucket brigade IC.
It is used by Boss in the DM-1 & CE-2. Also in the EMX Memory Man & Small Clone
the AD-999 by Maxon & the Analog Delay by MXR.
It's an amazing effects unit quite unlike anything I own.
These are videos recorded on Instagram.
The sound is cleaner than my Buchla 288v ... though I like that for other reasons.
The WAD is so hard to find these days due to the rarity of its components.
.. those SAD1024 chips.
The SAD1024 is a 512 stage bucket brigade analog delay chip
It has 2 independent delay sections.
The Bucket Brigade consists of a series of capacitors that pass the analog signal
like a line of people carrying buckets of water to put out a fire.
The analog signal in each capacitor is forwarded to the next stage using transistors that act a switches.
The rate is determined by an external clock.

It's difficult to say what portion of the WAD's magic is due to the SAD1024 but for the record
these also use it:
- Ace-Tone EH-50 Delay
- ADA Flanger (Early ones)
- Anderton Flanger
- BEL ELECTRONICS Delay/Flanger BA-40
- Boss Flanger BF-1
- Dynacord DC300-e
- DDD Flanger 640
- EHX Electric Mistress
- EHX Deluxe Memory Man (4 knob)
- EHX Memory Man Solid State Delay
- EHX Memory Man Echo/Chorus (non stereo)
- EHX Slapback Echo
- EHX Stereo Slapback Echo
- EHX Small Clone (not all)
- EHX Deluxe Electric Mistress
- EHX Clone Theory (w/Edge switch)
- HARMONY Synthesizer
- KORG some keyboards
- IBANEZ Flanger FL-305
- LUPINE Systems SAD1024 Delay
- MAXSON MP-DL201 Flanger
- MONTGOMERY APPLIANCES 77 Flanger (ADA Flanger Clone)
- MXR Analog Delay - but NOT the M-118 version, I am pretty sure it was called M-117
- PAiA flanger
- Roland - some guitar pedals
- Ross Flanger (Stereo delay R-80)
- Sovtek Electric Mistress (prototype)
- Tel-Ray Morley Chorus - Flanger CFL
- Vox 1902 Flanger (1981)
Links:
- EGRES
- muffs1
- Ken Stone - CGS208
Ebay has a few of these chips but who knows the quality. Or you could "borrow" them from existing pedals though I think that's sad (no pun intended).
An alternative chip could be the MN3007. Its also a bucket brigade IC.
It is used by Boss in the DM-1 & CE-2. Also in the EMX Memory Man & Small Clone
the AD-999 by Maxon & the Analog Delay by MXR.