[Boatanchors] Replacement Caps and Resistors

[Pete Lancashire]

Be very very very careful about buying electrolytic caps via Ebay or any
other surplus route. Just search Goggle for the horror stories. One should
buy only from authorized distributors, in the US/CA places like Digikey,
Mouser, Newark, etc.

Doing a Google search "examples of fake electrolytic capacitors"

An example URL

http://www.cti-us.com/pdf/CCAP-101InspectExamplesA6.pdf

Page 98 onward show passive parts.

Pretty much the same stuff ...

http://www.electronicproducts.com/Passive_Components/Capacitors/How_to_spot_counterfeit_passive_components.aspx

Another page not only shows inside a fake electrolytic and cheaper lower
quality part, but the part was used, it had been
salvaged from some old computer board.





On Wed, Jan 13, 2016 at 6:10 AM, rbethman <rbethman at comcast.net> wrote:

> I specifically obtained new carbon composition from Mouser!
>
> They are going into ALL grid circuits in my HRO-50-T1.
>
> It will be in service on a regular basis, and then I have no issues with
> the metal film.
>
> I'll be taking a hard look at the ceramic ones!
>
> Regards, Bob - N0DGN
>
>
>
> On 1/12/2016 5:33 PM, w5jo at brightok.net wrote:
>
>> For this reason I buy ceramic resistors for my stock for I never know for
>> sure where they will be used.  If you find carbon comp, chances are they
>> will be out of value but some reliable places have good ones.
>>
>> Also if you are using them in circuits  500 volts or over pay attention
>> to the voltage rating of the resistors.
>>
>>
>> Jim
>> W5JO
>>
>> -----Original Message----- I would give some thought to the metal film
>> resistors if it is in a
>> location where it can add inductance.
>>
>> Some will disagree.  I have found it DID make a difference.
>>
>
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