Psvane Acme Series 211 Vacuum Tube Matched Pair All New

Psvane Acme Series 211 Vacuum Tube  Matched Pair All New
Brand: Psvane
Product Code: psvane acme211
Availability: 4
Price: $758.00 $648.00
Ex Tax: $648.00
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Psvane Acme series have 845, 300b, 802, 211, 2a3, 274b and 212 tubes. They claim to have new patents in vacuum tube audio which have been used in these series like composite metal mesh screen pole structure for big power tubes and they are stable and very good sounding.

Static parameter
Ua--------------------------------------1250                V
—Ug------------------------------------70                   V
Ia-------------------------------------- 100                   mA
Gm-------------------------------------3.8                   mA/V
u(Ia=75mA)-----------------12
RL--------------------------------------7 KΩ
Pout------------------------------------10 W
Recommended Operating Conditions ( reference value)
class A(A-F) for two tubes:
                   typical working condition    limited parameter
Ua--------             750         1000      1250      1250    V
Pa----------------------------                           75         W
—Ug-----------    46            61          80                       V
Ug(pk)---------   41            56          75                       V
Ia(0)-----------    34            53           60                      mA
ri---------             4.4           3.8         3.6                     KΩ
RL--------            8.8          7.6          9.2                     KΩ
Pout-----------    5.6           12          19.7                   W

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