Psvane HiFi 845 Matched Quad Replace tube amplifier 845B 845-T WE845 RCA845 Stereo Vacuum Tubes

845

Hi-Fi Series: classic style, exquisite craft, comprehensive and balanced sound performance, largest sales

845 is direct-heated type thorium tungsten cathode triode, class A1 and AB1
Heater
Uf---------------------------------------10 V
If----------------------------------------3.25 A
Maximum Rating
Ua----------------------------------1250 V
Pa-------------------------------75 W
Pout(max.sig)--------------------------150 W
Ia(max)------------------------------120 mA;
Direct Interelectrode Capacitances
input----------------------------------6 PF
output----------------------------------4.5 PF
grid to plate----------------------------------14.5 PF

Static parameter
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 Operating Conditions(reference value
class A1 .single tube:
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.class AB1:
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

Established in 2007 as an Electronic parts supplier, we start supplying NOS tubes to tube AMP factories since 2010. Nowadays, we are also supplying new tubes and other hifi DIY parts to tube amplifier factories and audiophiles.

Our production line:

1. Stereo Vacuum Tubes

2. Electronic Vacuum Tube

3. Vintage Vacuum Tubes

4. Vacuum Tube Sockets

5. Audio Electrolytic Capacitors

6. DIY LED Diode

7. Audiophile Grade Resistors

8. Tube AMP Board

9. Tube AMP Parts

10. Tube AMP Transformer

11. Guitar AMP Volume Knob

12. Guitar Amplifier Handles

All Hifi parts and tubes from us are sold at reasonable price with good quality, Welcome to visiting our website, we will provide best service no matter you are big HIFI products factories or individual audiophile.

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