Ph decreaser is an acid. Sodium Bisulfate sometimes called a dry acid.
On 03/08/2013 08:17 PM, David Dazer wrote:
I use pH decreaser from the swimming pool to remove the zinc plating. It is
sold as a dry powder and so much easier to keep around than acid. Just a little
bit disolved in water will work very well to strip the zinc before heat bluing
and oil quenching,
Dave
________________________________
From: Rich<[email protected]>
To: Antique Phonograph List<[email protected]>
Sent: Fri, March 8, 2013 6:21:17 PM
Subject: Re: [Phono-L] Help with a value please
They are also usually the odd number size, 1,3,5,7,9, etc which makes
them very close to impossible to find. They are also heat blued and oil
quenched. Hydrochloric acid takes off the zinc.
http://www.boltdepot.com/Wood_screws_Slotted_round_head_Zinc_plated_steel.aspx
On 03/08/2013 04:48 PM, Ron L'Herault wrote:
Finding slotted screws can be tough. I'd say they're worth around a buck
each 8-).
-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of Tom Jordan
Sent: Friday, March 08, 2013 4:29 PM
To: 'Antique Phonograph List'
Subject: [Phono-L] Help with a value please
Hi Everyone,
I was wandering through one of those little hole in the wall antique stores
today and made a purchase. I hope that I got a good deal.
I found a nice clean little tabletop Edison DX in an oak cabinet. Serial
number 22676. It's got the usual grime that a gentle cleaning should take
care of. It's a strong runner and plays nicely. The only thing missing is
the bedplate screws that hold it in the case.
Can anyone tell me what one of those is worth in today's market?
I have some old auction books, but the market has changed so much that I
don't think that they are still accurate.
Tom
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