Pinpointer - Minimax-PP II

[anz29]

Hi to all!!
I have almost completed minimaxx smd, but I need mmbt4403 and 4401.
I am currently working on zombi version through hole.
I'll keep you informed

[johnandles]

I recently built the picodetector,programmed the pic 12f683 from the site.www.micro-examples.com
But dissapointed with result.
It does detect metal,but my project has poor range.
Tried various windings and inductances but only could locate large objects 20mm distance.(pliers etc).
Small coins almost touching the inductor...gold ring ..forget it.
Hope someone had better luck.
I think I build as above pp
Regards
John

[johnandles]

I have just ordered the thru hole equivalent components for this PP.
I will post results soon.
Hopefully I will not need a sack truck to operate!
Cheers
john

[zomby]

If you are using a 9V battery, there is no need to put the stabilizer on 3.3V. Place the stabilizer on the 5V and will be more sensitive.
The author used the scheme Petruchio Agricultural Labourers 3V and specifically made to the scheme could work with two batteries of 1.5V.
At 5V scheme works better. In this case, you can use IC LM062.

When you use a 5 volt stabilizer consumption rises tok.3 volts in less consumption and longer battery life

[GSL]

Wire wound on a ferrite length of 10cm. The length of the winding 3-3.5cm
400W , Wire 0.16-0.24.

p.s. The Author recommended the use of circuit wire 0.3mm for better quality factor

[johnandles]

Translation pls

Can someone translate the coil details,for some reason I cannot cut and paste it for
babble fish.
Thankyou
John

[GSL]

If you are using a 9V battery, there is no need to put the stabilizer on 3.3V. Place the stabilizer on the 5V and will be more sensitive.
The author used the scheme Petruchio Agricultural Labourers 3V and specifically made to the scheme could work with two batteries of 1.5V.
At 5V scheme works better. In this case, you can use IC LM062.

[zomby]

PP

[zomby]

works very well with some adjustments - coin 18 mm in January to detect 6 cm

[anz29]

No news??
Anyone has tried to build?
I have assembled few components, I have little time unfortunately

[anz29]

Hi Anz29

I tried to reply to you rmessage but you do not accept pm

"anz29 has chosen not to receive private messages or may not be allowed to receive private messages. Therefore you may not send your message to him/her."

Sorry
Now I have corrected, you can try again to send me a private message?
Thanks

[silverdog]

Hi Anz29

I tried to reply to you rmessage but you do not accept pm

"anz29 has chosen not to receive private messages or may not be allowed to receive private messages. Therefore you may not send your message to him/her."

[anz29]

MPC602 have equivalent through hole??
How can I replace operational?
TL072? LM358? TL082?

[satdaveuk]

I guess I'm supposed be impressed because you were certified as a radio technician in the 1990s?

Since we are browbeating, I design and build my own amplifiers with technology from the 1930s.

Hells bells. thats got to be the biggest pinpointer ive seen, does it come with sack truck

[DavidB]

Hey UFO that's a cool tube amp, looks like a classic push pull stereo amp with 6L6's in parallel.