op-1

i think you will not find one easily, and if you do the price may not be to your liking.
best chance would be to email all the online stores that stock or stocked 808s and ask.

cheapest option and most pain in the @#$$, would be to sell your 808 and buy one with 0p-1 (common on ebay?). i bought my 2nd 808 (classic)with op-1 for $130 - which was probably cheaper than just buying op-1

best of luck
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