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Old 21st March 2004, 09:32 AM   #1
svokke is offline svokke  Belgium
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Default strange "thing"

I found something, on a garage sale. The owner didn't know what it is and I didn't eather. There were no tubes visible, I just bought it because I wanted to know what it is and it was €2.
Anyone here knows what it is? Opened it up and it contained some "audio" tubes": 2*6v6 and one 6sl7 that was laying in it.
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Old 21st March 2004, 09:33 AM   #2
svokke is offline svokke  Belgium
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photo from the inside of the cover.
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Old 21st March 2004, 09:36 AM   #3
svokke is offline svokke  Belgium
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the inside...
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Old 21st March 2004, 09:47 AM   #4
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Difficult to tell - an DC to AC converter perhaps? The 6V6s would be in a push-pull oscillatory circuit to produce an alternating current, possibly to run low powered mains devices off a car battery...
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Old 21st March 2004, 11:17 AM   #5
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Could be an ancient motor/light speed control...

I believe it says "Thermo Calipers" bottom left, definatley bad european english

"Invert Polarity" center, probably to reverse direction of an industrial motor...

Maybe a psu for conversion for pulse drive?

AHA! a model train power supply! Maybe :>

What did I win?...
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Old 21st March 2004, 06:29 PM   #6
svokke is offline svokke  Belgium
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Here is some more info I found while cleaning:
-under the dirt there is a label in it that reads:
sophya societe de physique appliquee S.A.
bruxelles 33R.thomaes
app type: 104
numero: 142
courant: 110-240
garantie no:142
periodes: 50
-it has a hookup wire to the mains, I didn't dare to plug it in yet. First I've gotta know what it does and I have to check the electronics.
-the controls on the front are:
-unmarked two positions switch
-two position switch marked ther.-c*ut./tonal (* is unreadable)
-two position switch marked inver.-polar.
-orange light marked "voyant du secteur"
-three black and one red conector with under it: "thermo cautière"
and "tonalogic
-big knob connected to a rheostat "intensité"
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Old 21st March 2004, 09:38 PM   #7
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I'd be wary about plugging it into mains - I can't see anything which could be a rectifier on your pictures, so how are the tubes getting any DC HT?
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Old 21st March 2004, 10:28 PM   #8
stormy is offline stormy  United Kingdom
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Looks like mains goes into transformer from pair of contact on right of panel i think i do see the rectifier valve and it looks like the left pair of contact is gona be a variable current output

so i dont see how it could be an inverter since input is going into
transformer which is AC

Idea of it being a motor contoler sounds a good one.

i personaly would not be scared to plug it in after a inspection
off the device, but if you arent shure what you are doing
dont plug it in

I also notice theres a voltage selector for the input AC


Regards stormy
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Old 21st March 2004, 10:34 PM   #9
stormy is offline stormy  United Kingdom
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Quote:
Originally posted by stormy
Looks like mains goes into transformer from pair of contact on right of panel i think i do see the rectifier valve and it looks like the left pair of contact is gona be a variable current output

so i dont see how it could be an inverter since input is going into
transformer which is AC

Idea of it being a motor contoler sounds a good one.

i personaly would not be scared to plug it in after a inspection
off the device, but if you arent shure what you are doing
dont plug it in

I also notice theres a voltage selector for the input AC


Regards stormy


oops better add im looking at the inside when i refer to right pair and left pair of contacts, with the transformer on your right.
pictured in top picture on this page.


stormy
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Old 21st March 2004, 10:37 PM   #10
stormy is offline stormy  United Kingdom
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Quote:
Originally posted by stormy




oops better add im looking at the inside when i refer to right pair and left pair of contacts, with the transformer on your right.
pictured in top picture on this page.


stormy

il get this right yet. the second picture down. the pair
with the heavier green wires 1 going to fuse


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