-40%

2pcs PSVANE 811A High power audion REPLACE SHUGUANG FU-811 G-811 Vacuum Tubes

$ 43.3

  • Brand: PSVANE
  • Country/Region of Manufacture: China
  • Model: 811A
  • Type: Vacuum Tube
  • UPC: Does not apply
  • gtin13: Does not apply

Description

2pcs Tested can Matched Pair PSVANE 811A High power audion replace FU-811 811 FU-811J Vacuum Tube Factory tested 811A*2pcs Psvane ranks among the best-respected audiophile tubes on the globe. Their designs have established a benchmark for clean and accurate sound reproduction, along with a build quality that matches their sonic performance. 811A is direct-heated type thorium tungsten cathode high µ triode, can be used as high-frequency oscillation power amplification. 811 is similar to 811A, they can be exchanged each other. Heater Uf--------------------------------------6.3 V If---------------------------------------4 A Maximum Rating Ua--------------------------------------1250 V Ia---------------------------------------125 mA Pa--------------------------------------40W grid current---------------------------------------50 mA Operating frequency and Ua When the operating frequency above 30MC, Ua and anode input power should be reduced as follows: Operating frequency(MC) Ua and anode input power 60 89% 80 70% 100 55% When it is in constant working, the anode should not be allowed to have slight red; when in interrupted working, it should only be allowed to have perceptible slight red. Direct Interelectrode Capacitances Input--------------------------------------5.5 PF output--------------------------------------0.6 PF Grid to plate……………………………………………..5.5 PF Static parameter: Ua……………………………………………………….2000 V -Ug……………………………………………………...2 V Ia………………………………………………………26 mA µ(Ia=20mA)……………………………………..160 Maximum rating in other operating conditions R-F power amplifier or oscillation, C amplifier (CW) CCS ICAS Ua………………………………….1250 1500 V Ia……………………………………175 175 Ma Pa…………………………………..45 65 W Pa (in)……………………………..175 260 W Ug…………………………………-200 -200 V Ig…………………………………..55 50 mA C amplifier anode-modulation, R-F power amplifier CCS ICAS Ua…………………………………1000 1250 V Ia…………………………………..125 150 mA Pa………………………………….30 45 W Pa (in)……………………………115 175 W Ug…………………………………-200 -200 V Ig……………………………………50 50 mA CCS: constant working ICAS: interrupted working A-F power amplifier or oscillation B amplifier, grid driving Maximum Rating CCS ICAS Ua………………………………………………1250 1500 V Ia (max. sig)……………………………….175 175 mA Pa………………………………………………45 65 W Pa (in) (max. sig)……………………165 235 W Recommended operating condition (Reference value) (The value of two tubes) CCS ICAS Ua……………………………………………1250 1500 V Ug…………………………………………….0 -4.5 V Ia (0)…………………………………………50 32 mA Ia (max .sig)……………………………..260 313 Ma Ũg (pk)……………………………………145 170 V Pd (max. sig)…………………………..3.8 4.4 W RL (a-a)……………………………………12.4 12.4 kΩ Pout (max. sig)…………………………235 340 W NOTE: The buyer is responsible for any applicable import duties and local taxes. Please verify with your customs before making your purchase. 1. All payment must be prepaid. 2. We only accpet payment via paypal. Please kindly check if you can do the payment via paypal before placing an order. Shipping 1. We are not responsible for undeliverable address. We reserve the right to charge the shipping fee again for returned item due to wrong address. 2. Item are generally shipping out within 2 working days after your payment have been cleared. We ship on Monday to Friday (excluding Public Holidays). 3. Orders from the HongKong or Shenzhen will all be shipped out via the post postal. 4. We Ship to Worldwide, except the excluding country. Most delivered 10-30 business days. Returns 1. We offer 30 days money back guarantee return policy. 2. We will responsible for the postage of damaged replacements. Refund will be made upon receipt of the returned item.