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Valvola Shuguang 572B.
Un triodo di potenza moto conosciuto ed utilizzato sia per HiFi che per trasmissione radio.
Ecco alcune caratteristiche della valvola:
Specifications Direct heating, high μtriode. The 572B is popular by use in Taylor equipment FL2100, SB200/SB201, 10-160L, 30L1 or as upgrade o replace the 811A in the Ameritron A1-811 or AL-811H.
Filament heating Uf
6.3 V If
4 A
Interelectrode capacitance input capacitance
6 PF output capacitance
0.9 PF transroute capacitance
5.9 PF
static parameters Ua
2500 V -Ug
2 V Ia
32 mA μ(when Ia=20mA)
190 RL
7 kΩ Pout
7 W
Typical operation
single tube A1 amplifier
Ua
750 V
Ug
30 V
Ia(0)
130 mA
Ia(max.sig)
210 mA
RL
5 kΩ
Pout(when Dtot=5%)
40 W
class AB2 amplifier
Ua
1000 V
Ug
20 V
Ia(0)
75 mA
Ia(max.sig)
300 mA
μ(g-g.pk)
195 Vp-p
RL
8 k
Pout(when Dtot=5%)
150 W
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