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1 Matched pair PSVANE KT88-T MK II Premium Grade Vacuum Tubes KT88 DIY parts

TOPT000KT88T
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PSVANE KT88-T MK II Premium Grade Vacuum Tubes KT88 DIY parts
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1. Free shipping with tracking number.
2. Price is for one  matched pair.

our email address:
salesmanager@youdaelectronics.com

 

1 Matched pair PSVANE KT88-T MK II Premium Grade Vacuum Tubes KT88 DIY parts

 

KT88-TII is a beam power tetreode, its anode limited dissipation power is 42W. In the audio amplifier, the power can be 100W when it is used as push-pull class AB1 with double tubes, it can also be used in electronic voltage regulator circuit. KT88-TII  is similar with CV5220 and 6550,they can be replaced by each other.


Heater
Uf  ……………6.3 V 
If…………………………1.6 A
Maximum Rating          
Ua……………………800 V 
Ug2………………600 V 
Ug1………………-200 V 
Pa………………42 W 
Pg2…………8 W 
Ua+g2…………46 W 
Ik……………………230 mA 
Uh-k……………200 V 
Tbulb…………………250 C
Rg1 
with cathode bias                                               
Pa+Pg2≤35W 0.47 MΩ 
Pa+Pg2 > 35W 0.27 MΩ 
with fixed bias
Pa+Pg2≤35W 0.22 MΩ 
Pa+Pg2 > 35W 0.10 MΩ


Direct Interelectrode Capacitances 
tetrode connection       triode connection
input………16 9.3 PF 
output ……… 12 17PF 
grid to plate………1.2 7.9 PF

 

tetrode connection
Ua…………………… 250 V 
Ug2……………………250 V 
Ia ……………………140 mA 
Ig2(approx) ………3 mA 
-Ug1(approx)………15 V 
Gm ……………………12 mA/V 
ri ……………………12 KΩ 
Ug1-g2……………… 8

ri ……………………670 Ω 
u………………………8


triode connection
Ua.g2…………………250 V 
Ia+g2…………………143 mA 
-Ug1(approx)………15 V 
Gm ……………………12 mA/V

 

   


   


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. 


















 
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