3Pcs 5V-12V Reforçar a 300V-1200V DC-DC Boost Converter High Voltage Power Boost Module
Make sure to connect a suitable load first! Bought with the intention for use as class A vacuum tube pre-amplifier supply 6mA. This is a Diode pump circuit and is not regulated. Generator frequency within Audible range. Have yet to establish sig/noise levels from circuit. Great value for this application if noise levels are acceptable.
2 modules from 3 are working.. output is not regulated...
Good quality