Found this nice blue box

[Jean-Pierre G]

Hi all,
A friend of mine found this nice french device without further informations !
The question is : what is it ?
Thanks for your help

https://photos.app.goo.gl/16Y5eg93E5kuwgpy8

https://photos.app.goo.gl/wHQG7Fx6555xTM4h7

[Adrian Pardini]

Hi Jean-Pierre,

from the innards and the labels on the front panel that looks a lot
like a diathermy machine or an electric scalpel.
It's very similar to mine, albeit a bit lighter I guess? I'm still
waiting for Santa to give me a couple of VT4C 's to fire it up.

In any case it's a lovely machine. Thanks for sharing.


--
Adrián Pardini

[Jean-Pierre G]

Thank you Adrian,

I love the idea of an electric scalpel !
I know that the parents (grandfather's) of my friend are in the medical environment !
So you are probably right.
How does it work ? What are the plugs for ? (Iono and HF) ?

[Alex]

Hi, I am not sure about this being a diathermy as they are generally more powerful (unless this is a fairly high voltage, the mA meter would suggest a fairly low current). My diathermy tester presents a few hundred ohms load and expects around 100 watts of output...

I suspect this is one of the many early electrotherapy devices - think tens machine - they often used salt bath type solutions and various ionisation / RF outputs of low power for various applications. IONO would suggest salt / electrolysis bath also. I have had a few later units come through with medical equipment surplus / scrap that are vaguely similar to this.

That said it could be a diathermy but there was many random quackish machines like this over the early years. Does it have a footpedal?

- Alex

[David Pye]

I wonder about shortwave therapy.  My dad was a physio and had lots of huge machines that heated the tissues with RF energy. Similar meters etc?

David

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[gregebert]

My neighbor had a diathermy device from the 1930s or 1940s , and refused to power it on because of the radio interference it supposedly created. I wish I remembered more about the control panel, but I do recall it had a large tuning dial and I think the dial went up to several Mhz. It was a large wooden cabinet, art-deco style. It's been more than 40 years  since I saw it, but the photo here I found online reminds me of it.

I would also be careful about exposure to RF energy in case you decide to power it on.

[Jean-Pierre G]

Hi there,

Thanks a lot for all the informations you provided !

Here is a new track. After discussion with my friend's uncle, he told us that this device was coming from a dentist and possibly used for "electrotherapy".
So probably not a diathermy system nor an electrical scalpel.

I do like this finding !

[Tom Harris]

I had an old diathermy machine. First time I've ever seen a switch labelled "coagulate" and "cut"!

That one is beautiful. The 3 indicator lights look like a 1950's robot face.

Tom Harris <celep...@gmail.com>

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[Gary Gaspar]

looks like some sort of high frequency device. Do not think it is a diathermy machine. At least not like the one I have. This one has tubes that are too small even though they are in parallel. one jack says IONO ? Ionise not sure but hf High Frequency

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[Bill Notfaded]

Dentists use a tool like this still today to cauterize dental wounds and it's immediately stops bleeding.  They can also use a tool like this to cut away parts of the gum at the gumline from what I've seen in my own personal dental experience.

Bill