GU-74B ГУ-74Б =4CX800A SOVIET TETRODE CERAMIC-METAL TUBE TESTED NOS ACOM ALPFA99

Description: PLEASE, READ CAREFULLY EVERYTHING. IT IS IMPORTANT. About Item: Russian tetrode tube GU-74B (ГУ-74Б) are direct replacements for use in some of the best-built RF power amplifiers, including Alpha 99, 91B, 8100; ACOM 1000, 1006, 1010, 2000A. Fully equivalent to the modern 4CX800A tube.TESTED.The GU-74B (4CX800A) Svetlana tetrode is used in wide-band non-tunable amplifiers and for single-sideband power amplification in stationary and mobile RF equipment. It is useful at full ratings through 250MHz. GU74B (4CX800A) Ceramic Power Tetrodes are high performance ceramic/metal tetrodes with a plate dissipation rating of 800 watts.The performance characteristics of the 4CX800A allow its use as a high gain grid-driven RF amplifier or as used in grounded grid service. Technical specifications: Cathode type: oxide, indirect heating; Application field: power amplification in broadcasting and SSB equipment; Brief application: amplification; Envelope: metal-ceramic; Cooling method: forced air; Forced air cooling of at least 35 m³/h; Dimensions: 90 x 71 mm; Filament voltage: 12.6 V; Filament current: 3.3 – 3.9 A; Mutual conductance: 26 to 38 mA/V; Output power: 0.6 kW; Maximum anode voltage: 2kV/4kV in peak; Maximum operating frequency: 150 MHz; Durability is not less than 2000h;Weight: 550 g. PLEASE, READ CAREFULLY!SHIPPING METHODS:1. Europe - Economy International Shipping - no tracking number. If you wish faster delivery and tracking number, please select STANDARD International Shipping. 2. Worldwide - Standard International Shipping - with tracking number included in the cost of shipping. 3. Any order above $ 60 US - with tracking number included in the cost of shipping.The ESTIMATED delivery time varies from 7 to 45 working days (9 weeks) to most of the countries.Detailed info you can find in the table below. Delivery time % of shipments that arrive in the said delivery time Country working days (without holidays and weekends) <15 15-24 25-34 35-45 >45 <3 weeks 5 weeks 7 weeks 9 weeks >9 weeks Canada, United States 5 % 85 % 7 % 3 % 0 % Africa, South America 5 % 20 % 55 % 20 % 0 % Japan, South Korea 10 % 85 % 5 % 0 % 0 % Taiwan, Thailand 5 % 45 % 45 % 5 % 0 % China, India 5 % 40 % 50 % 5 % 0 % Indonesia, New Zealand 5 % 40 % 50 % 5 % 0 % Israel 5 % 65 % 30 % 0 % 0 % Australia 5 % 55 % 35 % 5 % 0 % Russia 5 % 50 % 40 % 5 % 0 % Europe 60 % 35 % 5 % 0 % 0 % Others, not entered shall, countries 5 % 20 % 55 % 20 % 0 % Items are generally shipped out within 24 (rarely 48) hours after payment has been confirmed (Holidays, Sat. & Sun. excluded). The delivery time depends on the destination, holidays, customs clearance factor and other factors.Please, if you have a problem, DO NOT OPEN CASE on eBay before this period has elapsed or before you communicate with us.We ship your package to your eBay address. Please update your complete address including full name and phone number during checkout. We are not responsible for any wrong or undeliverable address.INTERNATIONAL BUYERS – PLEASE NOTE: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying.ADDITIONAL INFORMATION & QUESTIONS: The pictures are for general information only. They do not carry technical information. I apply maximum efforts to work better and better. It is very important for me to get your feedback to know, whether you are really satisfied completely! Please, contact us if you have questions - especislly in the delivery term. Please use the link "Ask seller a question".GUARANTEES & a POLICY of RETURN: We guarantee you complete satisfaction with all our products. If you receive an item you ordered damaged or defective, we will send replacement item. We only accept returns if the items in original package you have received are not what was described in the auction, damaged or defective. If exchange is not possible money refund will be issued. All returns must be sent to Bulgaria. Item for returning must have the original tags and packing, otherwise it won't be accepted.Thanks And Good Luck!52395_1**

Price: 390 USD

Location: Gorna Oryahovitsa, Veliko Tarnovo

End Time: 2024-12-24T14:49:28.000Z

Shipping Cost: 20 USD