FS: FMR PBC-6A and 2520 op amp clones

[mta250]

FOR SALE

FMR PBC-6a [$375, free shipping]
FMR PBC 6A | eBay

and ML2520 discrete op amps (clones of API 2520) [$40/ea, $5 s&h]
Ml 2520 Discrete Op Amp API Clone | eBay