Type 3

Box C Mains Powered


Box made by :- 
(nameplate on back of the lid)

This box was an unexpected acquisition. It came from the Tetbury Antiques Emporium Sept 2003

I was having my usual browse when I came across this box on the floor in  the corner of the back room. The Emporium staff both claimed they had no idea what it was, or what it was supposed to do. Anyway the discounted price was only  £20  -  so you have guessed correctly I was soon trotting up the street with my ‘bargain’

Tetbury box

As usual a small amount of tidying up was needed on this box. The leather handle was showing its age and required some glue to fix the loose bits. The flexible cables are the original ones, and the rubber insulation has perished and gone so hard that cracks appear when the cables are bent .Before the unit can be connected to the ‘mains’ the leads will have to be replaced .

The tools or applicators are stored in the lid as usual. The ones shown in the lid here all have very small ends for applying the treatment, so it looks like a special set compared with the other boxes I have. The large glass dome applicator shown fitted to the wand outside the box appears to be a ‘rogue’ item in this box as it does not  fit correctly in the lid clips.

A better view of the tools is shown below .


Tetbury, open

View of the applicator tools in the lid. This set has got such small ends that the wands must be for spot treatment or something ?

The model of this unit as shown on the view below is :-


Detail controls


Close up View  of the Control Panel shown on the left .

The circuit of this unit is similar to the other two units I have. There is an interesting extra on this unit though, as it has a low wattage lamp in series in the mains wiring to reduce the output. This lamp can be taken out and a shorting plug put in place to get ‘full’ output. After I had repaired the unit I tried this  -  and the output was so vicious that I decided that using the shorting plug was for operating on a lower voltage !!

It is interesting to note that in the instructions for box  no. 3A it says to insert the plug into the lamp holder before switching on, but there is no lamp holder on that particular box. Not having the original instructions is a bit of a disadvantage as the output and frequency can be varied considerably by the coil vibrator adjuster, and as I later found out it could be varied as well by a slider control on the wand itself which moves the operating coil in the wand up and down the magnetic core .

I demonstrated the ‘contraption’ to Pat and I think she was more alarmed than impressed, but it didn’t last long, and within a few minutes the thing started to splutter and smoke came out of the wand and it got hot !! Slight panic set in here!

The fault turned out to be a bad solder connection, and this was soon put right -  and the unit is available for “treatment”  again .