Psvane Treasure 845-T
Psvane Treasure 845-T
Psvane Treasure 845-T

    Improved structure over the old Shuguang 845B, model for safe shipping, wider diameter (2 1/2″) for stability and quick heat dissipation, gold coated brass base to improve shielding to interference, Gold coated pins to enhance connection over long term, Can be used to replace Shuguang 845B directly, all parts are selected to the highest grade plus only highly experienced workers to assemble, suggested burn-in time is 75 hours

845-T is direct-heated type thorium tungsten cathode triode, class A1 and AB1
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
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

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