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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders.

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Old 16th Feb 2019, 3:16 pm   #2041
Aitor Eneko
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Default Re: AVO Multimeter survey

That is very interesting Andy, have you seen a model 40 Braille?

I have a big curiosity to know exactly the system that connects the internal pointer with that strong external pointer.
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Old 16th Feb 2019, 4:37 pm   #2042
AndyGilham
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Default Re: AVO Multimeter survey

Aitor,
Essentially the outer pointer is a feeler mechanism. The reading is made and the internal movement needle moves across the scale as normal and is held held in its position. The user then carefully and manually moves the feeler across the scale, until he/she feels a stop point (that aligns with the positional reading). From there, the reading can be made on the Braille plate.
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Old 16th Feb 2019, 7:27 pm   #2043
Aitor Eneko
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Default Re: AVO Multimeter survey

Ok, I see, the outer pointer moves free, is a very simple mechanism then. Not very accurate in my opinion.

I think it is an important model in any serious Avo Collection.

Avo Braille related: I just have two QSL cards (same card but 2 different radio stations) made to advert the Avo braille model 7. Never see one of Avo 8 or 40.
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Old 16th Feb 2019, 8:36 pm   #2044
AndyGilham
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Default Re: AVO Multimeter survey

It is quite basic....but it worked!!

Those are the QSL cards you scanned and sent to Richard of Richard radios fame? He did mention them to me. Nice find!
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Old 16th Feb 2019, 9:08 pm   #2045
Aitor Eneko
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Default Re: AVO Multimeter survey

Quote:
Originally Posted by AndyGilham View Post
It is quite basic....but it worked!!

Those are the QSL cards you scanned and sent to Richard of Richard radios fame? He did mention them to me. Nice find!
Yes, they are. i find both in Spain, one of them with a Spanish radio Station indicative, so i assume Avo 7 Braille was sold here.
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Old 16th Feb 2019, 9:15 pm   #2046
Sinewave
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Default Re: AVO Multimeter survey

I don't have a braille meter in my collection, I couldn't see one.
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Old 16th Feb 2019, 10:35 pm   #2047
Aitor Eneko
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Default Re: AVO Multimeter survey

This is the other one, with a radio amateur station from Spain
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