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Does exactly as advertised. The clamp for the copper pipe is awkward and not very solid but the circuit works well. It didn't come with any documentation. Connect it to 12-50Vdc and turn the little switch on and it and the fan work. It also came with a small pigtail connector, don't know what that is for. I tried it with a number of other coils and never had any problems.
Verified purchase: Yes | Condition: New
At first it didn't work, because heating coil wasn't streched, after streching it so that wiendings doesn't touch each other it worked. Another that bothers me is that there is no manual included. The button on the back is totaly useless, because it doesn't do anything. And I don't recommend using it without water cooling, as the coil really heats up and with that also PCB and capacitors. And the mounting for heating coil is really bad, but thats not big deal as it can be easily changed. After all induction heater works fine.
Verified purchase: Yes | Condition: New
This is a nice board, expanding the basic 2-transistor ZVS driver with an onboard 12v switching regulator module that is used to drive a cooling fan, with external connector for a (optional user supplied) cooling pump. There is overcurrent protection, which should make it less likely you will blow it out, but will also limit the peak output you could possibly get. Another nice feature is that there is a power switch on the board itself, which is more important than you might think at first, since the self-oscillating ZVS design may blow out if the power doesn't have a sharp turn-on. My board powered up fine, and I was easily able to melt aluminum in a 35mm dia graphite crucible. This is a slightly smaller crucible than mentioned in the item description, which may explain why I wasn't entirely successful in melting copper. The overcurrent limiting cut in at about 26V, and the copper pieces fused together, but didn't flow. The crucible did heat up more or less white hot, and more than 1/2 of the graphite burned away. I ran the cooling using just a siphon and two buckets, the low one on the floor. This ran though a dribble of water, which came out warm at the highest input powers. To successfully do casting you'll need to experiment with a lot of details such as insulation for the crucible, flux, etc.Read full review
Verified purchase: Yes | Condition: New
it is 0.3 kW not 1 kW. Checked with 2 power supply too: normal and highier. Silver cannot be melted even if it is 5 grams. Screw put into brass spiral is red. only red color is nice.
Verified purchase: Yes | Condition: New
price is good. quality is not bad, but could be better.(tips=heating coils need to spaced, not compressed, or it won't work)
Verified purchase: Yes | Condition: New