Multitester tested for voltage. Out of production and hard to find ORIGINAL genuine factory Altec Lansing power supply regulator, power supply with an INPUT: AC 120V. Amperage can be higher, but never lower. Round barrel connector with a three pin center. Please check your device requirements before purchase. Photo is generic. Adapter shape, size and color may differ slightly from photo. Special heavy wrapping is provided. S H in the contiguous USA is $6.(insured shipping). Please see other interesting auctions by JGrit USPS DELIVERY TIME: As stated in the item listing, seller will drop-off your item to the USPS within 4 days of receiving cleared payment. How long it takes to deliver to your door is strictly within USPS control and not within the control of seller. Please leave 5 stars for seller 4 day drop-off time. Thankyou.