[Lowfer] cores

Thu, 23 Oct 2003 15:12:51 -0400

Wondered how you were checking the Q of the caps
I have an inductance meter with no docs and error codes
although it does give reasonable accuracy

I think

and checks for ringing which can translate into Q

Bob


On Thu, 23 Oct 2003 12:32:46 -0400 "Bill Ashlock" <[email protected]>
writes:
> >Bill, what LRC meter do you have,,, availability,cost  ??
> 
> Bob, this is a B and K 875B. I bought it for about $125 three years 
> ago when 
> it was sold by a different company. I've noticed the price in Newark 
> 
> skyrocket since then. Last year $198; this year $242! I see that 
> Mouser 
> sells a B and K 615-875B for $189 which has the same ranges. Don't 
> know why 
> the prices are so high. I don't think we are into anything 
> high-tech, here, 
> except maybe there's a microprocessor inside that has become 
> scarce.
> 
> There used to be kit available for about $100 and some on the guys 
> bought 
> this including Mike R. Unfortunately this meter doesn't have a 1/Q 
> reading 
> (as mine does) which I find to be helpfull in getting a rough idea 
> on what 
> the Q of inductors and capacitors will be like at 185k. This feature 
> even 
> shows these tiny ceramics to be superior to mica at the 1kHz 
> measurement 
> frequency.
> 
> Bill
> 
> _________________________________________________________________
> Cheer a special someone with a fun Halloween eCard from American 
> Greetings! 
> Go to  
> http://www.msn.americangreetings.com/index_msn.pd?source=msne134
> 
> _______________________________________________
> From the Lowfer mailing list
> Send messages to: [email protected]
> To sub/unsub visit: http://mailman.qth.net/mailman/listinfo/lowfer
> 
>