Psvane hifi tube 845B 1pair
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Item#: Psvane 845B
$188 (unit price)
Quantity:
$188 (unit price)
Quantity:
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| Quantity | Unit price (USD) |
| >= | $ 188 |
| >= | $ 168 |
| >= | $ 148 |
Products with the Same Model
Features and Specifications
845B is a direct heating type thorium tungsten cathode triode, which can be used for A1 and AB1 power amplification. price for 1pairFilament heating
U f---------------------------------------10 V
If----------------------------------------3.25 A
Limit rating
Anode voltage----------------------------------1250 V
Anode dissipation power-----------------------------75 W
Output power at maximum signal--------------------------150 W
Maximum anode current -------------------------------120 mA;
Interelectrode capacitance
Input capacitance----------------------------------6 PF
Output capacitance----------------------------------4.5 PF
Trans-circuit capacitance----------------------------------14.5 PF
Static parameters
Ua--------------------------------------1250 V
—Ug-------------------------------------200 V
Ia---------------------------------------80 mA
Gm--------------------------------------3 mA/V
ri----------------------------------------1.7 KΩ
u----------------------------------------5
RL---------------------------------------3.4 KΩ
Ug(pk)------------------------------------69 V
Pout-------------------------------------15 W
Recommended working status (reference value)
Single tube A1 zoom:
Ua-----1000 1000 1250 V
—Ug--- 145 155 209 V
RL-----6 9 16 KΩ
Ia------90 65 52 mA
Gm-----3.1 — — mA/V
Ug(pk)--- 110 148 V
ri------1.7 1.9 2.1 KΩ
Pout----24 21 24 W
Push-pull AB1 class zoom:
Ua------------------ 800 1000 1000 1250 V
—Ug---------------- 125 170 175 225 V
RL------------------ 4.5 4.6 4.6 6.6 KΩ
Ia--------------------80 70 40 40 mA
Ug(pk)----------------177 240 — — V
Ia (mAx.sig)---------170 230 230 240 mA
Pout----------------40 75 75 115 W
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Psvane 845B
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