Well this will be simple. - Printable Version

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+--- Thread: Well this will be simple. (/showthread.php?tid=20021)

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Well this will be simple. - jake wells - 05-23-2019

printer died on me and had to draw the schematic of my next project. It is a 4 tube trf Belmont not much to this set.     

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RE: Well this will be simple. - Radioroslyn - 05-24-2019

You might want to double check the value of the 350K resistor on the ct of the hv winding. Methinks it should be 350ohms.

GL

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RE: Well this will be simple. - jake wells - 05-24-2019

I corrected that it is suppose to be just 350 ohms

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RE: Well this will be simple. - EdHolland - 05-24-2019

Looks like a fun project Jake. I love the simplicity in these designs.

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RE: Well this will be simple. - morzh - 05-24-2019

Jake,

I do not see a cap that decouples the GND itself. You know, the one with the + on the GND and the - on the centertap.
If you use the GND as the common and it is not the centertap, you might want to decouple that too.
A small cap, 10uF 50V will do.

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RE: Well this will be simple. - jake wells - 05-24-2019

i will check that out thank you.

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RE: Well this will be simple. - jake wells - 05-24-2019

Here is the actual schematic i need to double check mine anyway and do some study on the power supply circuit.

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RE: Well this will be simple. - morzh - 05-24-2019

They don't have it decoupled.
This is a good practice however, most Philcos with the GND biased relative to the centertap will have it.

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