[time-nuts] Replacing electrolytics - any disadvantages of high temp ones?

Will Matney xformer at citynet.net
Fri Jun 24 21:49:42 UTC 2011


If I recall, didn't B&K make a capacitor analyzer that did ESR measurements
too? I think it was a hybrid, part solid-state, and part tube, but folks
swore by them.

Best,

Will

*********** REPLY SEPARATOR  ***********

On 6/24/2011 at 2:34 PM Pete Lancashire wrote:

>Sencore 102 or 103's. If your lucky you can find one for less < $200.
>
>If you don't mind the age. At the bottom of the pile are ones like the
>Eico 950-B and many that are close. The 950-B is about the best
>in the lower shelf.  Stick with the B, newer if anything and remember
>Eico's also came as a kit. If you not in a rush, wait till you find a ....
>
>Sprague Tel-Ohmike's The 5 and 6's being the last of the series
>and the only ones to really consider. Just my call, others like some of
the
>older ones. Depending on condtion and phase of the moon you can get
>a TO-6A for around $50, most go for about $100.
>
>Next shelf up I would say the Clough-Brengle 712 and its military cousin
>the ZM-11/U. I find it harder to use only in that everything is jammed so
>close. And my 712 died a couple years ago and havn't got around to
>looking inside. Price $50 to $100
>
>Non of these prices reflect Ham-fests, Aunt Milli's thrift store etc.
>
>All the above will or should be gone over, the usual stuff caps,
resistors,
>etc.
>
>The one I use the most is the Tel-Ohmike 6A. Some say the 5 is better
>and the 6's did dropped the transformer ration feature, but I only the
thing
>i use it for is caps.
>
>Moving into the modern era, the Sencore's 75, 102 and 103.
>
>Again at the top Sencore 102 and 103's, but you really have to be lucky
>to get one under $100 or so. I've not been so lucky.
>
>On Fri, Jun 24, 2011 at 11:22 AM, Brooke Clarke <brooke at pacific.net>
wrote:
>> Hi Chad:
>>
>> Google found it:
>> http://techdoc.kvindesland.no/radio/passivecomp/20061223155312558.pdf
>> But it's not that informative.
>>
>> The best info I've seen on measuring components is the HP (Agilent)
>> Impedance Handbook.
>> http://cp.literature.agilent.com/litweb/pdf/5950-3000.pdf
>>
>> I measured dozens of caps using a number of different methods to see how
>> well the combined ESR and Capacitance meter I sell works.
>> http://www.prc68.com/I/ESRmicro.shtml
>> http://www.prc68.com/I/Capacitors.shtml
>>
>> Does anyone know of a modern cap leakage tester?
>>
>> Have Fun,
>>
>> Brooke Clarke
>> http://www.PRC68.com
>>
>>
>> GMail / AnalogAficionado wrote:
>>>
>>> Cyril Bateman called Understanding Capacitors
>>
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