Your position: Home / Tubes and Tube Sockets / Psvane tubes / Psvane ACME Series tube

New Version 1 Matched pair PSVANE A274 Acme Series Vacuum Tube 274 274B

Free shipping by registered airmail
PSVANE A274 Acme Series Vacuum Tube 274 274B
(1000 available)
Shipping Cost:
Estimated Delivery Time:
Please select the country you want to ship from
Please select the information you wantX
  • Description
  • Reviews(1)
1. Free shipping with tracking number.
2. Price is for one pair
   buy 4 pcs, we will send 2 matched pairs,
   if you need matched quad, please leave us a message, we can send matched quad, thank you!

New Version 1 Matched pair PSVANE A274 Acme Series Vacuum Tube 274 274B

Item specifics
Type:    Audio Tube
Model:    A274
Substition: 274 274B
Brand:    PSVANE
Application: tube amplifier
Socket: 4 pins 

Packaging Details
Unit Type: 1 Matched pair PSVANE A274 (2pcs matched)



      Glass shell eight feet directly heated full-wave rectifier,274B is very similar with 5U4G and 5Z3P, which can be replaced by each other.


If…………… 2.5A

 Maximum Rating

anode inverse peak voltage……………1550V 
anode peak current        ………750mA


Recommend working condition

 Anode supply voltage             2×500V

Each arm impedance               75Ω

load impedance                   2000Ω

Filter capacitor                 4μF

Rectifier current                ≧220mA

Factory history and overview
Changsha Hengyang Electronics Co., Ltd. specializes in R & D and the sales of audio tubes. All the items have passed the ISO9000 Quality System Certification. In May 2011, Changsha Hengyang Electronics CO., LTD was founded;

In July 2011, the manufacturing base was established in Changsha;
In August 2011, PSVANE’s first tube----845 was rolled off;

In September 2011, PSVANE 845 series began to supply our products to some main tube amplifier enterprises at home and abroad.

In October 2011, Changsha Hengyang Electronics Co., Ltd. wholly owned acquisition of a famous tube production enterprise in southern China, which sent shock waves through the industry.

In November 2011, PSVANE HIFI series (300B, 2A3, EL34, KT88, 5881, 6SN7, 274B and so on) were officially rolled off.

In November 2011, the company got the ability to develop and produce three series that cover more than 50 types of tubes. The whole strength and production-marketing scale are among the world’s top four, which is unprecedented in the industry. The foreign media said that “the future of the world’s tubes is in China, and the future of Chinese tubes is in Hengyang”.

In November 2011, PSVANE Reproducing Classic Series came to the market overseas and caused a sensation. 

In November 2011, PSVANE HIFI series fully entered to the retailing market aboard and well received by customers from the middle and low-end market because it has better sound, appearance, stability and cost performance than other brands. 

In May 2014, Changsha Hengyang Electronics Co., Ltd entered into Jiahai Industrial Park, which means has turned into a new page. 

Average rating: 5.0 based on 1 reviews
Share your thoughts with other customers
Write a review
Product reviews can be carried out after the member login, please click here to login
Message Us