Description

1 matched pair PSVANE KT88-T MarK II classic grade Tubes remove CV5220 6550 KT88-TII is a beam power tetreode, its anode limited dissipation power is 42W. In the audio amplifier, the power can be 100W when it is used as push-pull class AB1 with double tubes, it can also be used in electronic voltage regulator circuit. KT88-TII is similar with CV5220 and 6550,they can be replaced by each other. Package listing: KT88-T Mark II Tube *2pcs (matched pair by factory) Heater Uf ……………6.3 V If…………………………1.6 A Maximum Rating Ua……………………800 V Ug2………………600 V Ug1………………-200 V Pa………………42 W Pg2…………8 W Ua+g2…………46 W Ik……………………230 mA Uh-k……………200 V Tbulb…………………250 C Rg1 with cathode bias Pa+Pg2≤35W 0.47 MΩ Pa+Pg2 > 35W 0.27 MΩ with fixed bias Pa+Pg2≤35W 0.22 MΩ Pa+Pg2 > 35W 0.10 MΩ Direct Interelectrode Capacitances tetrode connection triode connection input………16 9.3 PF output ……… 12 17PF grid to plate………1.2 7.9 PF tetrode connection Ua…………………… 250 V Ug2……………………250 V Ia ……………………140 mA Ig2(approx) ………3 mA -Ug1(approx)………15 V Gm ……………………12 mA/V ri ……………………12 KΩ Ug1-g2……………… 8 ri ……………………670 Ω u………………………8 triode connection Ua.g2…………………250 V Ia+g2…………………143 mA -Ug1(approx)………15 V Gm ……………………12 mA/V Payment: 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.