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Psvane KT88C KT88-C 1PCS

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Item#: Psvane KT88C
$42.8 (unit price)
Weight:0.25KG Quantity:

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Features and Specifications
The beam power tetrode KT88 has an anode limit dissipation power of 42W. In the audio amplifier, the power of 100W can be obtained when the two tubes are used as AB1 push-pull output, and the KT88 can also be used in the electronic voltage regulator circuit.
KT88 is similar to CV5220 and 6550 and in many cases, they are interchangeable. 
price for 1pcs

热丝加热
UH………… 6.3 V
IH………… 1.6 A
 
极限额定值
------------- --KT94 KT100 KT94 KT100
阳极电压……………… 800 800 800 800 V
第二栅极电压………… 600 600 600 600 V
第一栅极电压…………-200 -200 -200 -200 V
阳极耗散功率………… 42 45 35 40 W
第二栅极耗散功率…… 8 8 6 6 W
阳极加第二栅极耗散功率… 46 49 40 45 W
阴极电流……………… 230 230 230 230 mA
热丝阴极间电压……… 200 200 250 250 V
玻壳温度……………… 250 250 250 250 C
第一栅极电阻
自偏压时
--- ---Pa + Pg2≤ 35W 0.47 MΩ
--- ---Pa +Pg2 > 35W 0.27 MΩ
固定偏压时
--- ---Pa +Pg2≤35W 0.22 MΩ
--- ---Pa +Pg2> 35W 0.10 MΩ
极间电容
--- - - --四极管接法三极管接法
输入电容……… 16--- -9.3 PF
输出电容……… 12 --- -17 PF
跨路电容……… 1.2 ----7.9 PF
 
静态参数
四极管接法
Ua…………………250V
Ug2……………… 250V
a………………… 140mA
Ig2(approx)…… 3mA
-Ug1(approx)……15V
Gm………………… 12mA/V
ri …………………12KΩ
μg1-g2…………… 8

三极管接法
Ua.g2……………250V
Ia+g2……………143mA
-Ug1(approx)… 15V
Gm…………………12mA/V
ri…………………670Ω
μ………………… 8

 

推荐工作状态(参考值)
推换AB1类放大,三极管连接(自偏压)
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
推挽AB1类放大,四极管连接(自偏压)
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
ū(g1-g1.pk) ………60 V
 推换AB1类放大超线性连接(固定偏压)
(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
推挽AB1类放大超线性连接(自偏压)
(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
ūg1-g1.pk) …………… 104 71 V
Zout……………………… 4.8 4.5 kΩ
推挽AB1类放大四极管连接(固定偏压)
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
ūg1-g1.pk) ……………… 67 V

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