Re: 465/475 Volts/Div range LED swap problem.


Ozan
 

The picture is too small to see what is happening but looking at the schematic X10 light bulb supplies the base current of Q396. Either X1 is not lighting up (too small current) or X10 is lighting dimly when X1 is selected depending on what is connected for the LED circuit.

A properly sized resistor in parallel with the X10 resistor should fix it.

Ozan


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Here's a hint:

https://www.eevblog.com/forum/index.php?action=dlattach;topic=45906.0;attach=157509;image


What's wrong with this picture?

Dave

On Saturday, February 20, 2021, 09:46:09 AM PST, Michael W. Lynch via
groups.io <mlynch003=yahoo.com@groups.io> wrote:

I am sure that more than a few people here and elsewhere would like to hear
more about this.  I am a devotee of Mr. Goldberg myself.

--
Michael Lynch
Dardanelle, AR





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