White 3900D

[MartyJ1963]

Is this project still going DB? Regards, Marty

[blobber]

Hey Marty, what's going on? Your comma key is broken? I think this detector is only waste of time, it was my first attempt long time ago, to make a VLF machine, but with poor results. Maybe my fault, because lack of experiences.

[blobber]

Better to make a well proofed VLF design. So far I had good success with TGSL, IDX-Pro, Bandido 2, Krot, Fortune M2, many M3 and Fortune Pro2.

[gurdal]

device perfect coil a little hard

[getsa]

Hi,
Just FYI - having an eye the schematic "CSCOPE" and the PCB, you have shared I recognized my on hand drawn creations!!! Some time ago I shared them in a Bulgarian MD forum and а dishonest guy abuse with my work. Of course, I appreciate your intention to repeat the project! Fingers crossed!

[MartyJ1963]

Hi Blobber,,,,no the 'Comma key' works great, just my bad habits LOL,,,,and laziness,,,I was looking forward to building a new project, while the Winter ends, just to keep busy. I've been looking for pcb's, even simple ones just so I have something to do. I've been playing around with a set of coils I made for the IGSL but I've been struggling trying to tune them with the O'scope,,all the specs are correct Anyone suggest any builds to try please? I've already made the Surf/Barracuda/Tgsl/Igsl/Italiano/Mirage/IDX/Pickini 4 and the Minipule plus. If anyone has any proven THT or SMD Layouts to share I would really appreciate it. Thanks ,Regards,,,Marty.

[MartyJ1963]

Any news on this project yet?,,,@Blobber:-Where can I find a proven working layout for 'Bandido/Bandido 2' please? You mentioned you had success with your Bandido build. I'm still looking for a new project to build where I can learn to make VLF Coils better. Thanks,,,Marty.

[blobber]

Here is what I've made some time ago. Member CDI was so kind, to give me the layout in THT/SMD.
I made only some small changes, but hard to remember..
But take care please, the view is from bottom side.

Bandido 2.zip

[MartyJ1963]

Thanks for the quick reply and the Bandido build files,,,I'll check tonight if I have everything at hand to build it and if I have I will probably start after the weekend,,many jobs in the garden to finish for my partner before she will allow me to play with Detectors again,,Lol! Thanks again Blobber. Regards, Marty.

[MartyJ1963]

Hi Blobber,,,I looked at the layout but it's confusing me a little? Do I print out the layout as it is or do I have to reverse it? It seems like the IC's are the opposite way round and this is what confuses me. Also, 2 of the Electro capacitors on the layout have the same symbols on each pole and I can't tell which side is negative or positive. I will post a picture soon to show you what I mean and maybe you'll be able to tell me. Thanks again,,,Marty.

[blobber]

Well, I wrote already, that the layout view is from the bottom side, this was confusing me too. You need to print by mirror the K2 layer, for toner transfer methode.
Will check the capacitors later, by open my enclosure. But as I remember right, I was using 4,7uF SMD 0805.

[blobber]

I opened my box, the two capacitors are 4,7uF ceramics SMD 1206.
Anyway the unit is working very well, the performance is similar to my TGSL.
What I like on Bandido, is the power source with 9V block battery, with the low consumtion with only around 20 mA. so you will have fun for a long time.

[MartyJ1963]

Thanks Blobber,,,Sorry I have only just replied. I haven't started to build the Bandito yet but I will get around to it after I've completed the 2 projects I am doing at the moment. Regards, Marty.

[MartyJ1963]

Hi Blobber,,,Sorry to ask, but can you do me a big favour please? Would you be able to change the Bandido 2 layout in Sprint so I can print it out to etch the pcb at home? I'm really confused with which way to print it out? I would be really grateful for your help. Thanks, Marty.

[blobber]

Hello Marty,
the file inside the folder #188 comes in Sprint-Layout6 already.
But I hope this will help you. For toner transfer methode, you need to print only the K2 layer in mirror and you will be happy.

bandido2-1 bottom view_component update_blobber.zip