Leader Signal Generator Revisited Part 1 Adding a Frequency Counter

[@retro_tech]

Neat little project. I recently restored a signal generator on my channel which has the same problem: resistors and capacitors which have drifted and no way to calibrate. So it might also benefit from a similar modification. Subscribed to your channel.

[@terryblackman6217]

Looking forward to seeing your next installment with great interest.

[@fibberscloset498]

Thank you for watching.

[@harveyellis6758]

Cool project! Can unused winding of transformer in power supply an option?

[@fibberscloset498]

Do you mean on the secondary side? Possible, if there were any, but it would require a different solution to generate the required 9VDC. If you mean an unused tap on the primary side, I’m not sure why you would want to do that. If you live in a place that uses 230VAC as mains power, you would approach the solution the same way, but use a different AC-to-DC converter module. Does that answer your question? Thanks for watching.

[@harveyellis6758]

The schematic showed an additional winding on the secondary of the transformer. That is why I assumed this as an option.

[@fibberscloset498]

To be honest, I hadn't noticed those windings. However, you certainly could use one of the secondaries. The only consideration might be how much extra load you might be putting on the transformer. The frequency counter I used requires about 120 mA as I recall, so using the secondary would be adding that much load to the transformer, not including whatever circuitry you use to convert the secondary AC to 9VDC. I haven't done any research on the transformer, so additing 120+ mA might not make any difference at all. Using the primary side adds no load to the transformer, but still takes advantage of the switch and fuse. Good question, thanks! @@harveyellis6758