Analogue Electronic Repairs, Lancaster Videos
Videos by Analogue Electronic Repairs in Lancaster. Repair of all things electronic, analogue and digital. Vintage HiFi and valve equipment a speciality.
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Regulated buck step up converter 9 to 200 VDC. NE555 timer in astable mode at ~6kHz. 200V output regulated by TL431a programmable Zener diode with some transistor trickery to control the 555 via the reset pin. Static regulation, which is all that is required for this application looks good at around 100mV. Next up, prototype PCB, then small batch production.