Superscan PI

[GeoMax]

I guess, the person who draw the diagram did not understand the difference in how to draw wire bridges and inductor symbols in the first place.

[ZOUjiarui]

Is this the redrawn schematic of what you have built? Why are there no component labels (R1, R2, C1, C2, etc)? Why is ground shown as +24V? Why are there 10mH inductors all over the place?

No, it's not mine.

[ZOUjiarui]

One thing that can mess this project up is the transistors. Eric's detector designs, in many cases used transistors with ECB pin configurations. Where as most common transistors use EBC. This fact gets lost in the redraws and various pcb remakes

So in one pcb image in post #151 I see BC214(EBC) and BC184(ECB) with labels in red BC640(ECB) and BC639(ECB). This pcb uses ECB transistors. BC214, 2N3906 and 2N3904 will fail on this pcb

In your pcb image post #176 you have these labeld 2N3906 and 2N3904 and appears to wired correctly. This pcb uses EBC transistors. BC640(ECB), BC639(ECB) and BC184(ECB) will not work on this board

Which transistors are you using in your circuit?

This section of the circuit generates your +5 volts, if not working correctly, nothing works

Hello, I use bc640 and bc639.

[ZOUjiarui]

Eric's gold scan2 has the same circuitry, but it also has bc214 and bc184 on it

[ZOUjiarui]

The transistor orientation of this gold scan4 is also different from it.

[Carl-NC]

[ATTACH]56315[/ATTACH]The transistor orientation of this gold scan4 is also different from it.

Yes, and they are wrong.

How do you expect anyone to help you if you won't post a schematic of what you built?

[ZOUjiarui]

I built it exactly according to this sketch, and I didn't draw any drawings.

[Carl-NC]

That doesn't do me any good because it's an unreadable mess. If you don't want to produce a clean readable schematic then don't expect any help.

[Orbit]

I do not understand that people with experience they can't read the schematics it is drawn by hand and is not inspected but anyone who has dealt a little with Eric Foster's schemes he can very easily understand everything. lm337 serves only for regulationn serves only to regulate the voltage in the speaker ,then a ground effect trimmer ,so trimmer potentiometer for reaction rate, then adjusting the active clamp as with gs 4 or 5 etc..it was not interesting for me to draw it again because this scheme served me only to fix the factory original super scan.

[kt315]

check it and do it. i had put somewhere here this schematics and put again.
learn CAD soft with a link between a schematic and PCB, then you will see whole mistakes.
do not use sprint layout in your practic.

[rolling rock]

Thank you
I know there is a modified version of superscan pi called rospy deep scan in the forum, but there is no schematic.I like the original super scan pi better than the modified version.I've already made it, and it would be a shame if I couldn't.

I see +24V in the same area as -12V. That implies a total of 36V which must be confusing as hell to somebody wanting to get by with only two 12V batteries. So,that's not really much of an improvement so far is good information goes. To repeat somebody else's advice, you should redraw the schematic to where it is easily understood, correct the errors where possible, then ask for help where needed.

[Op04]

There are post by mikebg long ago regarding psu. I miss his technical post, sadly He's leaving us

[ZOUjiarui]

Orbit hello, I think this sketch is mk2, do you think I am right?
thanks

[ZOUjiarui]

No, all the drawings should be original super scan, I didn't find anywhere in the place where manual adjustment frequency, the Greece's MK2 sale instructions, MK2 should have digital circuits to perform data records.MK2 is still selling

[ZOUjiarui]

I think all the drawings are wrong and need to be copied and revised.