These tubes were removed from a Heathkit amplifier we parted out some time ago, and we’re just now getting around to listing the tubes. Both tubes have identical date codes of 7016, which I assume indicates production during the 16th week of 1970. They’ve been tested on out TV-7 using the settings for an 811 tube. The minimum for an 811 is listed as 36. These tested at61 and 51, with plate current measurements at 6.7 and 5.6mA. Yes, I realize that the “best” way to test tubes is in an amplifier. However, at the time of listing, we don’t have a working amp that uses 572B tubes. TESTING: The tube(s) in this sale have been tested on a vintage TV-7/D tube tester, which has been overhauled and calibrated by Dan Nelson. Dan Nelson is the guru of TV-7 testers, so you can rest assured that you’re getting dependable test results. Please note that no tube testers are identical and my test results will likely differ slightly from yours. I will not declare a lower value for any reason. (12AX7, 12AY7, 6SN7, 6DJ8, etc). (6V6, 6L6, 6550, EL34, etc). (5Y3, 5U4, GZ34, etc). (6146, 811A, 3-500Z, etc). Other Tubes and Accessories. (eye tubes, Nixie tubes, CRTs, sockets, etc). This item is in the category “Consumer Electronics\Radio Communication\Parts & Accessories\Tubes”. The seller is “hamandhifi” and is located in this country: US. This item can be shipped worldwide.

• MPN: 572B
• Brand: Cetron
• CompatibleBrand: Cetron
• Model: 572B
• Type: Radio Transmitting Tubes
• Country/Region of Manufacture: USA

READ ALL OF THIS AND STILL HAVE QUESTIONS? In the event of a problem with your order, simply message me and I will do my best to work with you to reach a resolution. The item “Cetron 572B / T160L = 811A Ham Radio Amplifier Tube NOS Matched Pair Vintage USA” is in sale since Saturday, March 28, 2020. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Parts & Accessories\Vintage Tubes & Tube Sockets”. The seller is “afewthingstobuyandsell” and is located in Ansonia, Connecticut. This item can be shipped to United States, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Turks and caicos islands, Bangladesh, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Luxembourg, Monaco, Macao, Martinique, Nicaragua, Peru, Pakistan, Paraguay, Viet nam, Uruguay, Canada.

• Type: Vacuum Tube
• Brand: Cetron