Tekpower TP152A DC Variable Power Supply, 2.2-15 V @ 2A, Or HY152A
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- 2.2-15 Volts adjustable @ 2 amps, ideal for tattoo use
- Foot pedal (switch) & clip cords with banana plugs can be purchased separately
- Anaolg needle voltage indicator
- CE approved
- 1 year warranty in the US
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The Tekpower HY152 DC regulated power supply is designed and engineered for tattoo machines. It has a fixed current output at 2 amps, you can control the speed by adjusting the voltage from 2.2 volts to 15 volts, the higher the voltage, the higher the speed.
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Couple of notes:
When powering off it takes a few seconds for the voltage to drop. This is common in a lot of power supplies. Just note that the drop to zero is not instantaneous.
Also, it doesn't come with any cables so you may want to get yourself a pair of all purpose banana clip cables although the terminals are screw type so you can just connect a stripped wire to them if you prefer.
Or you can get the banana plugs and add your own cable wires:
1 Pair Atlona 4mm Gold Speaker Wire Cable Banana Plugs Connectors
Although there is just one coarse voltage adjustment, this product allows fine adjustments that are much better than more expensive power supplies in sub $100 range also with one (coarse) voltage adjustment. I prefer using this over HY-1803 in some work in the 12V+ range, which results in much more radical voltage changes just nudging its single coarse voltage control. The analog voltmeter is well calibrated, but realistically, your own digital voltmeter should be used for precise adjustment. The lack of ammeter is not an issue for what I use this product for. I routinely hook up my own ammeter (multimeter) anyway to measure the small currents. For some of my work, the power supply current is less than 10 mA, making power supplies with 2-decimal digital readouts useless in such work. The plastic case of this power supply is a simple project box that is more than enough.
Interestingly, this inexpensive supply accepts up to 253VAC input. I was unsure if this little supply is a switching supply or linear. It is linear. Hams or those powering video work should not have any RF noise issues.
Everything I do tends to be either 3.3 or 5 volts, so I made marks on the dial face for actual output versus needle position. Works fine otherwise, just something to keep in mind to check your actual output versus indicated output.
Seems like I shouldn't have to do this for a $40 device.
I haven't opened it up to see if there's a pot or other adjustment inside.