Homemade power supply for tattoo gun,traveling tattoo artist tv show,art of tribal shoulder tattoo designs - Review

When restoring vintage valve (tube) radio equipment it is often desirable to have a bench power supply that can power individual stages without using the original power supply built into the equipment. When I was very much younger and valve technology was current, I built several of these power supplies.
I have made several dummy loads for testing transmitters, the one with the single resistor I rate at 50 Watt for a minute or two and the one with two resistors Will handle 100 Watt for several minutes. The item in the first image is a capacitance leakage tester, a project featured in Silicon Chip magazine during 2010 and built from an Altronics kit. The three items in the second image are, a ESR Capacitor Tester built from a kit from Dick Smith Electronics, a Silicon Chip project 50MHz Frequency Counter also built from a kit from Dick Smith Electronics and lastly a low range L and C Meter built from a project in Silicon Chip magazine. Sadly the Dick Smith kits are no longer available as this organisation has become a Super Market, now only interested in pushing out consumer electonics items, all the hobby items they once stocked were thrown out at bargain prices some time ago. I have bought this kit to use with my BoatAnchor equipment because it costs about the same as two crystals and they only give you one or two operating frequencies.
It will normally be powered from the Shack 12 Volt supply but I have included a 9 Volt battery pack so I can use it anywhere.

I have built several of these boards for members of the radio clubs I belong to who had difficulty with the surface mount components. Novelty tattoo coils for tattoo guntattoo coils, tattoo machine coils, tattoo machine part, tattoo supply if you are interested in it, please get in touch with me without hesateting!!! AC DC Switching Power Supply For LED Power Application , 100Watt , Single Output DC Power ConverterFeature: 1.
It is also useful for the odd experiment we may wish to carry out by bread-boarding a few bits. Not one of these has survived in my collection so a few years ago I decided I needed to make one again. Some of the kits featured in Silicon Chip magazine over the years are still available from Jaycar and Altronics and the circuit boards for a "role your own" were available RCS Radio but I believe this company has ceased to operate.
After a bit of "head scratching" I remembered the basic circuit of such devices and here is the result. As it only has one output my intention is to build a wide range VFO to use for the receiver sections of some transceivers that use one crystal for transmit and one for receiver per operating frequency This may even make a good radio club project.

I will also have to modify any equipment I intend to use it by adding BNC connectors for the inputs and in the case of valve equipment even more amplification I suspect.
I have decided I put it into too small a case as it would be better to have a BIG knob on the frequency control, I may even build it into a bigger box with the VFO I intend to build. Although I could have used solid state devices for the high voltage supply, I have stuck with tradition and used a good old 6AQ5 as the pass device and three neons as the voltage reference.
There are number of VFO kits available, I will look into them as I do not have the time to cobble up my own.

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