LINLAI 2A3B HIFI Serise Hi-end Vacuum Tube replace shuguang 2A3B Matched Pair

LINLAITUBE 2A3B HIFI Serise Hi-end Vacuum Tube replace shuguang 2A3B Matched Pair 100% brand new

Description

We promise to deliver the goods within two days (except holidays) . Quality Assurance 15 months, during this time problems of non-human factors , can be returned for a new .

LINLAITUBE white porcelain gold needle tube base 300B electronic tube is used for any model of 300B tube, new technology, new sound quality, new experience, moldy screen like Xidian, gold-coated grid, better process, better sound quality, better after-sales service, original factory matching direct sales . Lin Laizhiyin’s classic series products have an official long-term warranty (15 months) and quality assurance.

2A3B Direct-heated cathode mid-power double triode is used for A1 and AB1 amplification.
 Filament heating Uf …………………… 2.5 V
If………………………… 2.5 A
Limit rating
Anode voltage…………………………300 V
Anode dissipation power……………………15 W
Gate resistance
When self-biasing…………………………0.5 M
When the bias is fixed……………………0.05 M
Inter-electrode capacitance Input capacitance…………………… 7.5 PF
Output capacitance……………………16.5 PF
Trans-circuit capacitance……………………5.5 PF
Static parameters
Ua………………………… 300 V
-Ug……………………45 V
Ia………………………… 60 mA
Gm………………………… 5.25 mA/V
ri…………………… 0.8
k ………………………… 4.2
Pout…………………………3.5 W
Recommended working status (reference value) Single tube A1 type amplification (fixed bias)
Ua…………………… 250 V
-Ug……………………45 V
RL……………………2.5 k
Ia(0)……………………60 mA
Gm……………………5.25 Ma/V
ri……………………0.8
K ……………………4.2
Pout……………………3.5 W
Dtot……………………5%
Push-pull AB1 class amplification, fixed bias
Self-bias Ua………………300 300 V
-Ug………………62 Rk=780 V
RL……………3 5 k
üg(pk)…………87 110 V
Ia(0)…………80 80 mA
Ia(max.sig)…140 100 mA
Pout………………15 10 W
Dtot………………2.5 5%
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