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PSVANE 2A3-TII Vacuum Tube Mark TII Series HIFI EXQUIS Factory Matched 2A3 Electron Lamp

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PSVANE

Psvane MARK TII Series have two sub version: TII Classic version Or TII Collector version

The difference between Classic version and Collector version : It's from the same production line, the best appearance, the best electronic parameters and the timeproof tubes will be selected to Collector Version. The standard quality tube will class to Classic Version.  (HIFI EXQUIS Co, Ltd)

More details

$218.45

$257.00

-15%

  • TII Classic Version
  • TII Collector Version
  • 2 PCS
  • 4 PCS

There are the same selection method in the vintage tube, like telefunken select the best ECC83 to create E803CC, Mazda select the best 12AX7 to create their 5 star 3 mica 12AX7 for military or other important instrument use case(HIFI EXQUIS Co, Ltd)

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directly-heated type cathode medium-power duotriode for Class A1, AB1 amplification.(HIFI EXQUIS co, Limited)

filament heating
Uf ………………………… 2.5 V

If…………………………2.5 A

 

(HIFI EXQUIS co, Limited)
 static parameter 

 

Ua………………………… 300 V(HIFI EXQUIS co, Limited)
-Ug………………………… 45 V
Ia………………………… 60 mA
Gm………………………… 5.25 mA/V
ri………………………… 0.8 kΩ
μ………………………… 4.2
Pout…………………………3.5 W


Limit rating
anode voltage…………………………300 V
anode dissipation power…………………………15 W

(HIFI EXQUIS co, Limited)
grid resistance
bias…………………………0.5 MΩ
Fixed bias…………………………0.05 MΩ
(HIFI EXQUIS co, Limited)


interelectrode capacitance

input capacitance………………………… 7.5 PF
output capacitance…………………………16.5 PF
transfer capacitance…………………………5.5 PF

 

Recommend working status (reference)
Single tube A1 class amplification (fixed bias)
Ua………………… 250 V
-Ug……………………45 V
RL……………………2.5 kΩ
(HIFI EXQUIS co, Limited)
Ia(0)…………………60 mA
Gm……………………5.25 Ma/V
ri……………………0.8 Kω
μ……………………4.2
Pout……………………3.5 W
Dtot……………………5 %
(HIFI EXQUIS co, Limited)

Push-pull Class AB1 amplification
Fixed bias      bias
Ua……………300 300 V
-Ug……………62Rk=780Ω V
RL……………3 5 kΩ
üg(pk)………87110 V
Ia(0)…………8080 mA
(HIFI EXQUIS co, Limited)
Ia(max.sig)…140100 mA
Pout……………15 10 W
Dtot……………2.55 %

 

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HIFI EXQUIS will use double box package to send the tubes, We guarantee the tube will devliered to you with good condition,

But thank you always to check the tube state face with courier during delivery process.

The PSVANE TII tube have 1 year guarantee

 

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