is the output DC or pulsed DC? i.e. a single polarity?

The output is fairly clean DC. It has a few mV of noise which is load dependent. In my case I am using this in a supply for a measuring microphone. The mic needs super clean 120V at a couple mA, and super clean 200 V at no current. To clean the output up I used a Sziklai pair capacitance multiplier to get the noise down into the uV range plus an RC filter for the polarizing voltage.

Schematic of this product.

I was not able to find a schematic for the power supply circuit. Would have to reverse engineer the board to get the circuit.

What is required for it to work?

A 12 volt DC 1A wall wart powers this just fine.

Exactly what type of transformer is needed for the high voltage dc-dc boost power supply converter module?

All you need as a "wall wart" that plugs into the AC wall socket and delivers 12 volts DC. Cut and remove the coax plug from the wall wart's cord. Check polarity and connect the + lead with to red and - to black. A wall wart rated at 1 amp is enough as long as your HV load does not draw more than about 30mA. By the way, 30mA is about the limit for what this board can do before the inductor's core saturates and the efficiency goes way down resulting in overheating.

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High Voltage DC-DC Boost Power Supply Converter Module, Green

High Voltage DC-DC Boost Power Supply Converter Module, Green

Product ID: 368484753

Details

Brand
QINIZX
Color
Green
Input Voltage
12 volts
Item Weight
27.22 g
Item dimensions L x W x H
1.96 x 1.02 x

⚡Up to 380V adjustable output

📏Compact 5x2.6x1.7cm size

🔋Input 9-12V DC power range

€ 25.74

Duties & taxes included

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Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Boost Your Retro Vibes with High Voltage Precision!

COMPACT YET MIGHTY - Small footprint (under 2 inches) fits seamlessly into your retro projects without bulk.
PLUG PLAY CONVENIENCE - Includes cables for quick installation—get your high voltage boost running in minutes.
VERSATILE COMPATIBILITY - Designed for Nixie tubes, vacuum tubes (6E2, 6E1, 6E5), and audio level indicators—bring your vintage displays to life.
POWER YOUR VINTAGE TECH WITH PRECISION - Adjust output voltage from 80V to 380V to perfectly match your Nixie tubes or magic eye indicators.
OPTIMIZED EFFICIENCY FOR RELIABLE PERFORMANCE - Up to 65% efficiency at 170V output ensures stable power without overheating.

This High Voltage DC-DC Boost Power Supply Converter Module delivers adjustable output voltage from 80V to 380V with input of 9-12V DC, ideal for powering vintage Nixie tubes and vacuum tube indicators. Compact and efficient, it supports up to 25mA current at lower voltages and includes installation cables for easy setup.

Specifications

ASIN	B09D93QNYK
Best Sellers Rank	#243,820 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #294 in Lab Power Supplies #493 in Life Science Supplies
Brand	QINIZX
Color	Green
Customer Reviews	4.5 4.5 out of 5 stars (28)
Input Voltage	12 volts
Item Dimensions	1.96 x 1.02 x 0.67 inches
Item Weight	27.22 g
Manufacturer	QINIZX
Mfr Part Number	NIXIE-HV380V
Model Number	NIXIE-HV380V
Number of Items	1
Number of Packs	1
Power Source	Corded Electric
UPC	780861369910
Unit Count	1 Count
Warranty Description	90 Day Manufacturer

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