Description

PLEASE, READ CAREFULLY EVERYTHING. IT IS IMPORTANT. A bout Item: STRONG MATCHED quad (difference = 0 %), russian, o utput , beam tetrode 6P7S (6П7 С ) - quality equivalent of the G807, 6BG6. Tested and matched – on tester L3-3. Vf = 6.3 V; Vg1 = -14 V; Va = 250 V; Vg2 = 250 V. la min/max acceptable value = (54 - 90) mA. Warning! Tubes are matched by electrical parameters (Ia) , not by year manufacture or producer. We have these number of measured items in stock. Please select pair of the list and write to us. Price is for one matched quad (4 items). Difference = 0 % Ia tube1 | Ia tube2 | Ia tube3 | Ia tube4 | pcs 1. 64 mA 64 mA 6 4 mA 64 mA 4 2. 72 mA 72 mA 72 mA 72 mA 4 3. 74 mA 74 mA 7 4 mA 74 mA 4 The output beam tetrode 6P7S designed to enhance the power of high frequency. It is used in the output stages horizontal television receivers. It can be applied in the transmission device and output a very good two-stroke low frequency power amplifiers. AUDIOPHILE TUBE! Name 6П7С Type Output beam pentode Cathode type oxide, indirect heating Envelope glass, miniature NOMINAL ELECTRICAL VALUES Heater voltage, V - 6.3 The voltage at anode, V - 250 The voltage on the second grid, V - 250 Current in the heater circuit, mA - 900 ± 60 Current in the anode circuit, mA - 72 ± 18 The current in the circuit of the second grid, mA - < 8 Internal resistance, Ohms - 32.5 kOhms Power Output, W - >5.5 MAXIMUM ELECTRICAL VALUES The maximum filament voltage, V - 5.7 The smallest filament voltage, V - 6.9 The highest voltage at the anode, V - 500 The maximum stress on the second grid, V - 350 Maximum power dissipation at the anode, W - 20 The maximum power dissipated in the second grid, W - 3 Maximum current in the cathode circuit , mA - 100 Weight, gr - 98 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! 103450_SM4**