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 | For Vintage Vacuum Nixie Tube, Magic Eye 6E2 Level Indicator, 9V-12VDC Input, 80V-380VDC Output

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 output voltage

📏Compact 5x2.6x1.7cm size

🔋Input 9-12V DC, adjustable boost

HK$151

Duties & taxes included

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Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Boost Your Retro Tech Game with Precision Power!

PLUG PLAY READY - Includes cables for quick, hassle-free installation—get your vintage tech glowing in no time.
COMPACT POWERHOUSE - Small footprint (under 2 inches) fits effortlessly into your sleek, modern workspace or vintage project.
VINTAGE VOLTAGE MASTERY - Seamlessly powers Nixie tubes & Magic Eye indicators with precision voltage boosting.
EFFICIENT PERFORMANCE BALANCE - Optimized for up to 65% efficiency at 170V output, balancing power and energy use smartly.
ADJUSTABLE HIGH VOLTAGE OUTPUT - Customize output from 80V to a stunning 380V to fit your unique retro-tech needs.

This High Voltage DC-DC Boost Power Supply Converter Module delivers adjustable 80-380V output from a 9-12V DC input, designed specifically for vintage vacuum Nixie tubes and Magic Eye 6E2 level indicators. Compact and efficient, it supports up to 25mA current at lower voltages and includes installation cables, making it the perfect upgrade for millennial professionals blending retro aesthetics with modern tech precision.

Specifications

ASIN	B09D93QNYK
Best Sellers Rank	#243,158 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #294 in Lab Power Supplies #492 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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