Changsha Shuguang Audio Ltd.

Changsha Shuguang Audio Ltd.

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Tel: +86-0731-89745701
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Products

Shuguang 12AT7 vacuum tube new ECC81

Shuguang 12AT7 vacuum tube new ECC81 Shuguang 12AT7 vacuum tube new ECC81 Shuguang 12AT7 vacuum tube new ECC81 Shuguang 12AT7 vacuum tube new ECC81
Product name:Shuguang 12AT7 vacuum tube new ECC81
Item:SG-12AT7
Price:$8
Details:
Welcome to leisure-audio store! Pls email with any questions.
 
      We want all buyers satisfied!
 
About this tube 
     The auction is for one tube.Frankly speaking,Shuguang Corporation doesn't have 12AT7 matched because they think they are small tubes and that products with the same batch will have similar data.We directly ship the tubes from SHuguang Corporation and we don't match them by ourselves which is not correct,of course.

 

12AT7

   High μdouble three pole small 9 GT enlarges the voltage and driving power when working in magnify circuit.
12AT7 is the same with ECC81、6201、GT-12AT7, and they can be exchanged each other.

 

 


heater heating

UH………… 6.3(paralleling) 12.6(serial)  V
IH………… 0.30     0.15     V

A1actinomycete magnify limit value(each side)
plate voltage………………………… 300V
grid voltage………………………… -50V
plate dissipation power…………………… 2.5V
heatervoltage between cathodes(pk)………… ±90V
grid resistance
when it is self-partial voltage………………………… 1MΩ
when it is fixup partial voltage……………………… 0.25MΩ

capacitance between poles
grid-grid………………………… 0.005PF
anticathode-anticathode………………………… 0.4PF
grid-anticathode(each side)……………… 1.5PF
grid-cathode、heater(each side)……… 2.2PF
anticathode-cathode、heater(each side)……… 0.5PF
heater-cathode(each side)……………… 2.4PF
anticathode-cathode(each side)……………… 0.2PF
cathode-heater、grid(each side)……… 4.6PF
anticathode-heater、grid(each side)……… 1.8PF

static state parameter
Ua………………………… 100  250 V
Ia………………………… 3.7  10  mA
Gm…………………………  4   5.5 mA/V
Rk………………………… 270  200  Ω
μ …………………………  60   60
Ri(approx)…………… 15 10.9  kΩ
Ug…………………………   -5 -12  V
(whenIa=10μA)

 

 


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