Broadcast audio processing company Orban Labs has donated an Optimod 9100B AM processor signed by company founder Bob Orban to ARRL in support of this year’s annual auction.

The donation was made at the annual National Association of Broadcasters convention. Orban Labs has set the standard for audio processing in the broadcast industry for 50 years.

Its donation will be used to raise funds in support of ARRL’s programs in amateur radio at the annual auction. Company founder Bob Orban was on hand to sign the cover plate which makes this unique, vintage, and fully functional item a valuable collector’s piece. Orban Labs co-owner Mike Pappas, W9CN, organized this generous donation.