Flown SRB wideband signal conditioner, flown aboard Challenger shuttle mission STS-6. Part is stamped “Wideband Signal Conditioner.” Part is shadowboxed and framed against a printed informational background, to an overall size of 9.75 x 8.25. Accompanied by three flight hardware sheets, one filled in with “SRB Wide-Band Signal Conditioner. Flown on STS-6 OV-099? May had been flown and retrieved from one of the shuttle’s SRBs in Apr. 1983. Flight hardware.” RRAuction COA.