I have received a Drake SPR-4 non-working receiver and have many parts for sale. I have the 5NB noise blanker, $140, the SCC 4 calibrater, $55, 12 extra xtals, power xformer (checks ok), power cord, PTO and other parts. If you are interested, please e-mail me direct. Many Tnx---- Doug ddswl at centurytel.net