4pcs matched quad PSVANE KT88C Vacuum Tube replace shuguang KT88 CV5220 6550

$185.0 Buy It Now or Best Offer
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Seller Store vacuum-tube-amp
(479) 98.9%,

Location:
Ships to: US,
Item: 265985015793

Condition:New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is … Read moreabout the conditionNew: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller’s listing for full details. See all condition definitionsopens in a new window or tab
KT88C:KT88C
Country/Region of Manufacture:China
Psvane:Psvane
Type:Vacuum Tube
UPC:Does not apply

eBay 4pcs matched quad PSVANE KT88C HIFI Vacuum Tube replace CV5220 6550 shuguang KT88 KT88 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 is similar with CV5220 and 6550,they can be replaced by each other. Package listing: KT88C Tube*4pcs (matched quad) Heater UH………… 6.3 V IH………… 1.6 A Maximum Rating ————- –KT94 KT100 KT94 KT100 Ua……………… 800 800 800 800 V Ug2………… 600 600 600 600 V Ug1…………-200 -200 -200 -200 V Pa………… 42 45 35 40 W Pg2…… 8 8 6 6 W Pa+g2… 46 49 40 45 W Ik……………… 230 230 230 230 mA Uh-k……… 200 200 250 250 V Tbulb……………… 250 250 250 250 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 — – – –triode connection and tetrode connection input……… 16— -9.3 PF output……… 12 — -17 PF grid to plate……… 1.2 —-7.9 P Static parameter tetrode connection Ua…………………250V Ug2……………… 250V a………………… 140mA Ig2(approx)…… 3mA -Ug1(approx)……15V Gm………………… 12mA/V ri …………………12KΩ μg1-g2…………… 8 triode connection Ua.g2……………250V Ia+g2……………143mA -Ug1(approx)… 15V Gm…………………12mA/V ri…………………670Ω μ………………… 8 Series KT88 KT94 KT100 KT88-978 Recommended Operating Conditions（reference value) Push-pull.classAB1.cathode bias.triode connection. Ua.g2(b)………………400 485 V Ua.g2(O)………………349 422 V Ia+g2(0)………………2×76 2×94 mA Ig+Ig2(max.sig)……2×80 2×101mA RL(a-a)………………4 4 KΩ -Ug(approx)………… 40 50 V Pout………………… 17 31 W Dtot ……………… 1.5 1.5 % Pa.g2(0)…………… 2×26.5 2×40W Pa.g2(max.sig)……２×19 2×27 W Rk……………………2×525 2×525Ω ū（g1-g1.pk）…… 78 114 V Zout………………… 2 1.9 KΩ Push-pull.classAB1.cathode bias.tetrode connection. Ua(b)……………………560 V Ua(0)……………………521 V Ug2…………………… 300 V Ia(o)……………………2×64 mA Ia(max.sig)……………2×73 mA Ig2(0)…………………2×1.7 mA Ig2(max.sig)………… 2×9 mA RL(a-a)……………… 9 kΩ Rk……………………2×460 Ω -Ug1(approx)…………30 V Pout……………………50 W Dtot……………………3 % Pa(0) ………………2×33 W Pa(max.sig) ………2×28 W Pa2(0) ……………2×0.5 W Pg2(max.sig) ……2×0.7 W ?(g1-g1.pk) ………60 V KT100 Push-full.class AB1.fixed bias.ultra-linear connection. （40%tapping points） U a.g2(b)………………560 460 V Ua.g2(0)………………553 453 V Ia+g2(0)………………2ⅹ50 2ⅹ50mA Ia+g2(max.sig)…… 2ⅹ157 2ⅹ140mA RL（a-a）…………… 4.5 4 KΩ -Ug1(approx)…… 75 59 V Pout………………… 100 70 W Dtot ………………………2 2 % Pa+g2(0)………………2ⅹ27.5 2ⅹ27.5W Pa+g2(max.sig)………2ⅹ33 2ⅹ27 W ū（g1-g1.pk）…………140 114 V Zout…………………… 7 6.5 KΩ Push-full.class AB1.cathode bias.ultra-linear connection. (40% tapping points) Ua.g2(b) …………………500 375 V Ua.g2(0) …………………436 328 V Ia+g2(0) …………………2×87 2×87 mA Ia+g2(max.sig) …………2×99 2×96 mA RL(a-a) ………………… 6 5 kΩ Rk…………………………2×600 2×400 Ω -Ug1(approx) …………… 52 35 V Pout…………………………50 30 W Dtot……………………… 1.5 1.0 % Pa+g2(0) ………………2×38 2×28.5 W Pa+g2(max.sig) ……… 2×17 2×16 W ?(g1-g1.pk) …………… 104 71 V Zout……………………… 4.8 4.5 kΩ Push-full.class AB1.fixed bias.tetrode connection. Ua(b) ………………………560 V Ua(0) ………………………552 V Ug2 ……………………… 300 V Ia(0) ………………………2×60 mA Ia(max.sig) ………………2×145 mA Ig2(0) …………………… 2×1.7 mA RL(a-a) …………………… 4.5 kΩ -Ug1(approx) ………………34 V Pout…………………………100 W Dtot………………………… 2.5 % Pa(0) ………………………2×33 W Pa(max.sig) ………………2×28 W Pg2(0) ……………………2×0.5 W Pg2(max.sig) ……………2×4.5 W ?(g1-g1.pk) ……………… 67 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.

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