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Main => Monitor/Video Forum => Topic started by: Rickn on April 09, 2008, 05:09:14 pm

Title: Inductance meter- cheap but very useful like $30
Post by: Rickn on April 09, 2008, 05:09:14 pm: Hi Guys... I know that there has been a few postings regarding yoke impedance and the cost of an inductance meter here is a link to a very stable and useful meter. Check it out http://www.circuitspecialists.com/prod.itml/icOid/3394

Now if you are going to check the inductance of a yoke here are some pointers"
- power off the monitor
- unplug the yoke from the board
- Red and blue usualy horizontal
- Green and yellow (sometimes brown) vertical
- for Horizontal expect around 1 to 1.5 if CGA, .5 to ,75 for mid-res, ,24 to .32 for VGA or tri-res
- .18 to .2 for SVGA and higher

Millihenry by the way

Vert will be any where between 6 and 34

you must have this before trying to order a replacement board... if not your supplier needs to be educated.

Hope this helps.

Rick Nieman
Rick@niemandisplays.com

edit by moderator: changed one word that would otherwise make this quite dangerous
Title: Re: Inductance meter- cheap but very useful like $30
Post by: grantspain on April 09, 2008, 05:27:27 pm: bloody wise words and something i have been explaining on another forum where everyone thinks that you can chuck a tri sync chassis on an old cga tube/yoke

i have one ;D
Title: Re: Inductance meter- cheap but very useful like $30
Post by: Ken Layton on April 09, 2008, 06:07:42 pm: Hmmm.... that site only accepts credit cards. No Paypal, no money orders, no checks. Plus it gives me a Microsoft security warning to not trust the site.
Title: Re: Inductance meter- cheap but very useful like $30
Post by: grantspain on April 09, 2008, 06:13:18 pm: you can get them on ebay for about the same price,only problem is you have to wait 400 years for shipping from hong kong(o.k 4 weeks)
Title: Re: Inductance meter- cheap but very useful like $30
Post by: Rickn on April 09, 2008, 06:20:26 pm: Maybe Ken... but I have bought 4 meters from them 2 for me 2 for some local customers... not just recent either over the last 3 years.

I also supply the US Army and they have bought a number of meters.. have not heard any complaints.

Not my site so I guarantee but seemed fine.

Rick
Title: Re: Inductance meter- cheap but very useful like $30
Post by: Ken Layton on April 09, 2008, 06:27:05 pm: I have money in my Paypal account and I would have bought one of those meters had they accepted Paypal. I don't own ANY credit cards. Never have and never will.

At that price I would have bought one. That company has lost a sale because they don't take Paypal.
Title: Re: Inductance meter- cheap but very useful like $30
Post by: qrz on April 09, 2008, 07:26:54 pm: Quote from: Ken Layton on April 09, 2008, 06:27:05 pm
I don't own ANY credit cards. Never have and never will.

SMART ! evil things that they are :angry:

more : www.daveramsey.com

qrz
Title: Re: Inductance meter- cheap but very useful like $30
Post by: SirPeale on April 09, 2008, 11:31:21 pm: Paypal can generate a temporary credit card number to use on online purchases. It lasts once then becomes inactive.