TESORO GOLDEN SABRE

[dbanner]

Hi friends!!
Here I post the measurements using the oscilloscope at the GB stage on block 10 pin 7 U102b. Measurements are made at 5V, 20uS on both channels.
GB potentiometer at minimum.[ATTACH]57031[/ATTACH]

GB potentiometer to the maximum.[ATTACH]57032[/ATTACH]

Here a photo of the PCB.[ATTACH]57033[/ATTACH]

Looks good to me. Now here comes the fets.

[Ruben2000]

Hi friends!!
Here I post the measurements using the oscilloscope at the GB stage on block 10 pin 7 U102b. Measurements are made at 5V, 20uS on both channels.
GB potentiometer at minimum.

GB potentiometer to the maximum.

Here a photo of the PCB.

[dbanner]

Yes, indeed. Same way I learnt.

[dbanner]

Thank you very much banner, for the advice.
I would move fast but lately I'm busy, I'll do my best to finish this project.
The most important thing for me is that I want many to benefit from the information that I am publishing about the TGSL. I don't know much but I do what I can.

[Ruben2000]

Thank you very much banner, for the advice.
I would move fast but lately I'm busy, I'll do my best to finish this project.
The most important thing for me is that I want many to benefit from the information that I am publishing about the TGSL. I don't know much but I do what I can.

[dbanner]

Keep in mind that the scope shots are real. But somehow it works.

Proceed with haste.

These devices aren't built with putting on the shelf.

They are meant to find treasure...

[Ruben2000]

I hope the measurements are correct. If there is something wrong I hope you let me know so I can continue with the next stage. Here a photo of the PCB.

[Ruben2000]

Hi friends!!
I made the measurements with the oscilloscope at the DISC stage and I had the following measurements at 5V, 20uS on both channels.
Test point 9 DISC set to minimum.

Test point 9 DISC set to maximum.

[mostafalesnar91]

This is indeed true.
You have to be careful with TO-92 transistor pinouts. See page 202 of ITMD where are three examples from Europe, Japan, and the USA.

please warn this person(sinclairuser)

[mostafalesnar91]

rubbish! the transistors he is talking about do indeed have different pinouts, there are at least three to my knowledge.
on 2n2222/a and similar testing the pins or having the correct manufacturers datasheet for the parts you have is really important.

Please do not use offensive words!!!!!!! This is what you are saying, I have not experienced it yet !! I never trust the datasheet, I always check it before installing the emitter transistor and collector

[Qiaozhi]

I came across several BC547 transistors where their pins were reversed.

This is indeed true.
You have to be careful with TO-92 transistor pinouts. See page 202 of ITMD where are three examples from Europe, Japan, and the USA.

[Ruben2000]

Hi friends!!!
I will now go to block number 9 which is the DISC stage.
I will place all the components and then I will make the measurements with the oscilloscope.

[Ruben2000]

I came across several BC547 transistors where their pins were reversed.

[sinclairuser]

No, my friend, this is not the case, nothing changes, this is a universal contract for all electronic components !! Better to say, a big mistake for PCB Edu !!!
It's really embarrassing!!!!!!!!!!!!!!

rubbish! the transistors he is talking about do indeed have different pinouts, there are at least three to my knowledge.
on 2n2222/a and similar testing the pins or having the correct manufacturers datasheet for the parts you have is really important.

[dbanner]

Hi friends!!
I shielded the two coils and the wave is no longer deformed; And one more thing, the AC-GND-DC selector of channel 2 of my oscilloscope is failing, which is why it did not reach even the smallest of millivolts.
I put the coils back on the PCB with the shield to ground and got 20 degrees on RX. Here the image:
TX, higher amplitude wave at 5v, 20uS.
Pin7 of U101, smaller amplitude at 5mV, 20uS.
I am satisfied so far, thank you very much for your support.[ATTACH]57006[/ATTACH]

Looking good.
You should have no problems. Your step by step approach is the way to go.

Many people assemble all components and then ask " the circuit does not work, what could be the problem?"