First available in 1929 with full ratings up to 30MHz and used extensively in WW2 Navy Transmitters. Also known as 820, 38160 and SE-3119. It looks unused and is in extremely nice condition and probably dates from around early 1940s. This will be very carefully packaged.
This item is in the category "Sound & Vision\Vintage Sound & Vision\Vintage Parts & Accessories\Valves & Vacuum Tubes". The seller is "dave_rik" and is located in this country: GB. This item can be shipped to United Kingdom, Austria, Belgium, Bulgaria, Croatia, Republic of, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Bahrain, Canada, Japan, New Zealand, China, Israel, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, Korea, South, Switzerland, Taiwan, Bangladesh, Bermuda, Bolivia, Barbados, Brunei Darussalam, Cayman Islands, Egypt, Guernsey, Gibraltar, Guadeloupe, French Guiana, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Sri Lanka, Macau, Monaco, Maldives, Martinique, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Saudi Arabia, South Africa, United Arab Emirates, Bahamas, Colombia, Jamaica, Kuwait, Panama, Philippines, Qatar, Uruguay, Chile, Costa Rica, Guatemala, Honduras, Trinidad and Tobago, Antigua and Barbuda, Belize, Dominica, Grenada, Saint Kitts-Nevis, Saint Lucia, Montserrat, Turks and Caicos Islands, Aruba.