This is a VINTAGE AMPEX Tube Preamp CAT #30960-03. This was removed from a radio station storage room and I have no way of testing. Thanks For Looking and GOOD LUCK!!! I WILL BE PUTTING ON SEVERAL ITEMS IN THE NEXT FEW WEEKS. The item “VINTAGE AMPEX #30960-03 TUBE PREAMP MIC MICROPHONE AMPLIFIER RADIO STATION” is in sale since Tuesday, February 02, 2016. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Preamps & Tube Preamps”. The seller is “thehardtimes” and is located in El Centro, California. This item can be shipped to United States, to Canada, to United Kingdom, to China, to Mexico, to Germany, to Japan, BR, to France, to Australia, RU, DK, RO, SK, BG, CZ, FI, HU, LV, LT, MT, EE, GR, PT, CY, SI, SE, KR, ID, to Taiwan, ZA, TH, to Belgium, to Hong Kong, to Ireland, to Netherlands, PL, to Spain, to Italy, to Austria, IL, to New Zealand, SG, to Switzerland, NO, SA, UA, AE, QA, KW, BH, HR, MY, TR, CL, CO, CR, DO, PA, TT.