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Re: Resistor in series

 

sadly they did make that very mistake quite a few times! Witness the 7904
vertical board ... R724 and R725 (499 Ohm 1/2W) always run way too hot
(burnt fingers hot) and are often well off value from overcooking ... the
PCB gets well toasted too! I normally replace them with two 1kOhm 2W metal
film in parallel and they still run pretty warm.

David

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Tom Lee
Sent: 25 November 2020 23:20
To: [email protected]
Subject: Re: [TekScopes] Resistor in series

In a word, no.

Anything is possible, I suppose, but asking us to believe that Tek's design
team carelessly forgot to check power dissipation is a lot to swallow.
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