*  4P1L Single Ended Amplifier D.I.Y No2


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slow train

Slow Train



ISO Tang FC-12S


Fc-12S    FC-12S

this amplifier using FC-12S ISO Tokyo Japan

3rd party transformer are increasing price for covid 19 so this time using ISO Tokyo Japan's famous transformer for audio FC-12S very good quality.



🇯🇵Japanese

Filament Voltage: 2.1/4.2 volts @ 650mA/325mA respectively
Recommended anode voltage: 200V with 150V on the screen
Maximum operating voltage 250V anode or screen.
Maximum cathode current: 50mA
Anode dissipation: 7.5W
Screen dissipation: 1.5W

4P1L charactor by russian



Last update 3rd Jan 2023

Since 4P1L SE Amplifier circuit on 19th May 2014 Sakura Chiba Japan

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Single Ended Amplifier D.I.Y

How to build up Amplifier Single Ended Amplifier 2004-2023