[NJARC] B&K model 500 tube tester

[JOE CRO]

Sal - I greatly appreciate the info you gave me! I haven't tried out my 
tester yet, but plan to in a few days. It looks like it could come in handy 
testing some of the more common modern type tubes.

Best Regards,
                     Joe Cro N3IBX

----- Original Message ----- 
From: <salb203 at aol.com>
To: <njarc at mailman.qth.net>
Sent: Monday, May 19, 2008 8:44 AM
Subject: [NJARC] B&K model 500 tube tester


> Visit our web site - See http://www.njarc.org
> _______________________________________________
> This past Friday at the NJARC auction I purchased a B&K model 500 tube 
> tester for $9.00. I did a quick little restoration on it, gluing the black 
> material on one side of the case, giving the case a nice cleaning, 
> replaced all the capacitors, 1 out of spec resistor and replacing the 2 
> selenium diodes with 1N4004 diodes and cleaning all the switches and 
> potentiometer.
>
> The tester works great now all I need is to calibrate it. Does anyone have 
> that information plus any tube charts you can email me.
>
> I found some information on the web (Joe Cro, go to 
> http://www.tone-lizard.com/B%26K500_manual.htm since you bought the other 
> one) but it lacked the calibration instructions.
>
> Thanks,
> Sal
>
>
>
>
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