Official Luthiers Forum!

Hi I posted a link to the topic in another thread on shop atmosphere control but I thought that I would post a link here to my post on the ANZLF regarding Hygrometer Calibration that can be done easily at home....

http://www.anzlf.com/viewtopic.php?f=1&t=6123

Cheers

John AKA WoodRat

I've been testing my cheap digital Hygrometer for a few years with the Pot. Carbonate. Amazingly the Hygrometer reads within 3% and has done so since I bought it over 6 years ago! The accuracy suffers at the extremes but who cares. Not bad for a hygrometer that cost less than $30.

Similar story here, one digital ($15) and another analogue (<$10 from Ikea), checks done with potassium carbonate.
Digital reads 4% low and analogue 5% high, been pretty consistent for 3 years now

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The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.

Yes but I was saving up for Christmas. What's your excuse?

will food grade K2CO3 work ? that´s the only kind i can find locally. it doesn´t sate the purity on the label, but i guess it should be enough of it there, right?

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member of the guild of professional dilettantes

Seems pretty likely - I found this http://www.amazon.com/review/R1FLJHQCML5J9H/ref=cm_cr_dp_title?ie=UTF8&ASIN=B009GAHL8Y&channel=detail-glance&nodeID=1055398&store=home-garden
and this https://www.applichem.com/en/shop/product-detail/as/kaliumcarbonat-reinst-ph-eur-usp-lebensmittelqualitaet/

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The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.

thanks, Collin - i thought so.

edit: thousandth post! .... wow! most of them about nothing at all, but still...

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member of the guild of professional dilettantes

Thanks for posting the link, John, and to the rest of you for your follow up comments. Good stuff!

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George :-)

I found this very interesting (simple and inexpensive!). A lot of you may have seen it already.
http://www.mimf.com/phpbb/viewtopic.php?f=12&t=1701&p=15583#p15583

_________________
The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.

I'm Scottish!

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The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.

Good to see so many replies here, I am glad that it has been of interest to folks!...

Colin...thanks for the link to the post about the Dew Point method on the mimf.com ...that is very interesting.

Regarding food grade K2CO3 I believe that it will work fine...

Cheers

John AKA WoodRat