To my knowledge no branded pedal today is using the SAD1024a, some are using the Panasonic MN30007 like the Analogman Chorus:
("We use the original 1024 stage delay chip for high fidelity at the medium-short delay times that create chorusing sounds. We use New Old Stock (NOS) Japanese made Panasonic MN3007 chips, not the cheaper low voltage MN3207 or Chinese chips that most others use".
Analog Man Chorus Pedals
But they don't mention the SAD1024.
The original Small Clone used both chips too.
Info about the Bucket-Brigade-Devices MN30007:
ElectroSmash - Bucket Brigade Devices: MN3007
Info about the SAD1024a:
SADï·“1024 DUAL ANALOG DELAY LINE
This is a list of pedals that used the SAD1024a:
(the original pedals, not the clones or re-issues)
- EHX Electric Mistress
- Ross Flanger
- MXR Analog Delay - but NOT the M-118 version, I am pretty sure it was called M-117
- 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)
- ADA Flanger (early ones)
- EHX Deluxe Electric Mistress
- EHX Clone Theory (w/Edge switch)
- Sovtek Electric Mistress (prototype)
At least the EXH-Reissues are using the MN3207.
I never owned an original Clone Theory, but it makes sense to me that these chips are the main factor that determines the sound of these units.
"Besides Panasonic/Matsupoopiea, other companies were licensed to make BBD clones like Behringer which bankroll Coolaudio and started producing MN3207/3208/3205 clones for their own production needs. Visual Sound recommissioned production of MN3102/MN3207 in 2009. Shangai Beilling Co LTD manufacture pin compatible parts with Panasonic/Matsupoopiea chips, labeled with BL instead of MN."
The reason the 3207 is still produced and by different manufacturers, but the 3007 and the 1024 are not, remains a mystery to me.
But it's fun to know that most electronic devices we use are kind of "misused" items for mass produced consumer electronics like the above mentioned chips that were used for Telephone-answering-machines...
I do know that there are pedals out there that still use the MN3007, but they may be more in the boutique end of the spectrum, as some builders can still get their hands on small to medium sized quantities. The original VFE Choral Reef was based off the Small Clone circuit, and used an MN3007. He has now switched to a MN3008 BBD, which he says gives less noise but still excellent lush tone, and has made other tweaks to the circuit. I've always admired the VFE Choral Reef, but actually wonder if it is "too tweakable", with no less than 7 different controls. Pricey, too.
I too have never heard of anyone using the 1024 any more, but I've also read some posts on builder forums being quite critical of the 1024 as being even noisier than the 3007. AFAIK, not being any sort of builders or electronics expert, the BB chip does have a significant influence on the tone of the circuit.