Check the listing for details. Elinco Electric Indicator Company Type F-16 Permanent Magnet AC Generator. Condition: Open box. Listed at 79.00 USD. Elinco Electric Indicator Company Type F-16 Permanent Magnet AC Generator For sale- an Elinco Electric Indicator Company Type F-16 Permanent Magnet AC Generator as pictured. Three are available, price is for ONE. The generator produces 1.3 volts per 100 RPM. I believe these were used in the field of aviation as tachometers? I don’t believe these have ever been used just based on their physical condition, and they all turn freely. As you can see two of them have a gray finish, the third is black which to me at least makes it look older. Please specify which you would prefer. All items are sold as is with no warranty offered unless one is specifically stated. However, IF you pay the Buy It Now price and find a problem that you cannot live with within 14 days of receipt you may return it for a refund of the purchase price. Accepted Best Offers are strictly as is sale and no returns will be accepted. Any testing done will be explicitly stated in the listing and any accessory items will also be mentioned or pictured. If it isn’t pictured or mentioned you can assume it is not part of the sale. Please check out my other listings for more interesting electrical equipment. I’m also offering an Eastern Air Devices DC generator that looks very similar to these. Check back often! Please add a $8.99 flat rate for shipping anywhere in the continental US (which does NOT include Alaska, Hawaii, Puerto Rico, Guam or APO/FPO addresses). I will ship via the carrier and level of service of my choice unless we specifically decide on a favored carrier option. I will, at my option, ship worldwide via USPS for the actual cost as determined by USPS.com.