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Old 5th February 2003, 11:08 PM   #1
Sjef is offline Sjef  Netherlands
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Question Tube tester

I've got a tube/transistor tester of some kind of Italian brand. The problem is that I don't have the service manual and without it is impossible to operate it.

Does anyone know this one, or better, has anyone a operation manual for this tube tester.

The text on the tester says that it's a

Provavalvole / Provatransistori model 891 and it comes from Chinaglia Belluno Italy.
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Old 6th February 2003, 02:44 AM   #2
Brett is offline Brett
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I like to put my tube in a Sofia
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Old 6th February 2003, 12:30 PM   #3
fdegrove is offline fdegrove  Europe
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You could try this guy for help:


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Old 6th February 2003, 01:58 PM   #4
EC8010 is offline EC8010  United Kingdom
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Are you able to post a photograph of it?
The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...
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Old 27th January 2007, 10:27 AM   #5
HUMBLOT is offline HUMBLOT  France
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Question Chinaglia Tubetester Mod. 891

Hello Sjef,
I see your question about Chinaglia Belluno Mod. 891 Tubetester.
Did you find the corresponding User Manual for this tester?
If yes, could you please send me a copy of the document or indicate where I can be provided for such documentation.
Indicate the cost condition for a postal expedition if an Internet tranfert is not possible.
Best wishes for new year and success in old radio restoring activities
Best regards
92310 Sèvres
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Old 28th January 2007, 10:27 PM   #6
Sjef is offline Sjef  Netherlands
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Hi Dan,

No unfortunatly I have never found any manual for the tube tester. I have stopped searching for it after a while and it now resides in my closet for the last two years, maybe someday ??????
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Old 29th January 2007, 09:38 PM   #7
kevinkr is offline kevinkr  United States
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Tube tester
The manual for this tester is available by mail for 11 Euro here:


The site is in Italian, but I believe he speaks English as well.
Contact information here:http://www.geocities.com/CapeCanaver.../contatta.html

Note I expect if you could not read Italian well enough to understand the information he provided on his site, that the manual itself might be a bit hard to understand.

Incidentally this model is an emission based tester, imo not that useful.
I'd look for something that tests for transconductance. (Regardless of what he says to the contrary, although his point about tester to tester variations even with transconductance testers is well taken.) Testing the limits of my not so good Italian reading this site..
"To argue with a person who has renounced the use of reason is like administering medicine to the dead." - Thomas Paine
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