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Shuguang CV181-Z(50 Years) classic grade

Chinese Shuguang Treasure 50 Years CV181-Z classic grade.
The carbon-sprayed black glass treasure series has better product stability, matching accuracy and sound quality than ordinary products.It is divided into two classic grade and premium grade same as treasure series tubes.
CV181 is double triode, used in voltage amplification circuit, Can be replaced directly by 6N8P and 6SN7GT.

Shuguang CV181-Z(50 Years) classic grade
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Shuguang CV181-Z(50 Years) classic grade

Shuguang CV181-Z(50 Years) classic grade

CV181 is double triode, used in voltage amplification circuit, Can be replaced directly by 6N8P and 6SN7GT.

Heater
UH………… 6.3 V
IH ………… 0.6 A

Static Parameter
Ua ………………………… 90 250 V
Ug………………………… 0 -8V
Ia ………………………… 10 9 mA
Gm………………………… 3 2.6 mA/V
Ri ………………………… 6.7 7.7 kΩ
μ ………………………… 20 20
Ia when Ug=-12.5V _ 1.3mA
Ug whenIa=-10uA – 7 -18V
Maximum Rating
class A1
Ua………………………… 450V
Ik………………………… -20mA
Pa ………………………… 5w
Pa(No.1+No2) ………… 7w
Rg ……………… 1MΩ
Uhk ………………±100V

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