Hai cặp đèn điện tử công suất lớn Shuguang 805 (FU-5) Vacuum Tube logo ngôi sao 5 cánh ... hàng thích hợp các bác DIY amply đèn . Bán giá 1tr/cặp .
Link thông số tham khảo:
http://www.diyaudio.com/forums/tubes-valves/179274-shuguang-805-advice.html
http://www.tube-sale.com/index.php/tubes/shuguang/805fu-5/
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Product appellation:FU-5/805
Product price: publicize in DIY
Product habitus: HOT SALE
times:310
date: 2005-3-30
Product depiction: 805(FU-5)
Straight heating thorium-tungsten cathode triode 805, can amplify the power of B series,
A-F and R-F, and can amplify the power of C series and R-F and high frequency surge.
805 is the same with GL-805, and can be exchanged each other.
filament heating
Uf …………………………10 V
If…………………………3.25 A
capacitance between poles
input capacitance……………………8.5 PF
output capacitance……………………10.5 PF
transroute capacitance……………………6.5 PF
limit rating
plate voltage……………………1500 V
plate dissipation power………………125 W
working frequency and plate voltage when working frequency is higher than 30MC, the output
power of plate voltage and anticathode will adjust low according to the below table:
frequency(MC) plate voltage and anticathode input power
B grade electrode C grade telanticathode modulate telex
30 100% 100%
45 90% 82%
80 71% 55%
commend working state(reference value)
B series A-F power amplify(two tubes) limit value
Ua………………………1250 1500 1500 V
Ia(max.sig.per tube)……………210 mA
Pa(in)(max.sig.per tube) z……315 W
Pa (per tube) ………………………125 W
Ug……………………………………-16 V
üg(pk)…………………235 280 V
Ia(0)……………………148 84 mA
Ia(max.sig)……………500 600 mA
Pd…………………………6 7 W
RL(a-a)……………………6.7 8.2 kΩ
Pout(max.sig)…………300 370 W
B series R-F power amplify
(on carry wave condition, each tube's maximum modulate coefficient is 1.0)
limit value
Ua………………1250 1500 1500 V
Ug…………………………-10 V
Ia………………135 115 150 mA
Pa(in)……………………………………185 W
üg(pk)…………70 70 V
Ig………………15 15 mA
Pd………………11 7.5 W
Pout……………55 57.5 W
C series R-F power amplify and surge(anticathode modulate)
(on carry wave condition, each tube's maximum modulate coefficient is 1.0)
Limit values:
Ua………………1000 1250 1250 V
Ug………………-155 -160 -500 V
Ia………………160 160 175 mA
Ig………………60 60 70 mA
Pa(in)……………………………………220 W
Pa…………………………………………85 W
üg(pk)…………295 300 V
Pd………………16 16 W
Pout……………110 140 W -
805/FU-5
Straight heating thorium - tungsten cathode transistor 805 can be used forClass B, AF, RF power amplifier, C, RF power amplification and high frequency oscillation.
805 and GL-805 is similar, are used interchangeably.
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