BLISTOOL LTC48

[Patrick]

This is only a proposal as it is impossible to see the tracks below components.

A other "Wave" : Magnum + Fisher 1235 and 1280.

[WM6]

Great work Patrick, thanks.

[Skippy]

Good work. C35 is incorrect on cct diagram. Diode D1 will be a zener, 5V1, probably.C17 error connection. U3 pins 11,12,13,14 will all be grounded, I think.

[spookmore]

Schematics

i have been metal detecting for close on 40 years and i want to build my own metal detectors
i know nothing about Schematics or electronics where would be the best place to actually get hold of a good system to build,i would be grateful for any help,

regards

Norman

[ron_c]

Schematic

spookmore, I tried to answer your PM concering the schematic you ask about, but I'm not allowed to send a PM to you, PM me again with some sort of contact information. Thanks

[spookmore]

schematics

ron_c,my email is [email protected]

regards

Norman

[Skippy]

Spookmore, as you're UK based, a good place to start would be to take a look at the kits produced and sold by 'Silverdog',- website has that name.

[Skippy]

The +5V supply is obviously used as a virtual ground, it might make more sense to re-label +5V as 0V, +11V as +5V, and 0V as -5V. Hopefully you understand what I mean there.

[sinko1]

Please part list and coil data

[Patrick]

The +5V supply is obviously used as a virtual ground, it might make more sense to re-label +5V as 0V, +11V as +5V, and 0V as -5V. Hopefully you understand what I mean there.

I started drawing the TX MAGNUM (11.2 v and 0v)

[Patrick]

Good work. C35 is incorrect on cct diagram. Diode D1 will be a zener, 5V1, probably.C17 error connection. U3 pins 11,12,13,14 will all be grounded, I think.

Exact: C35 is on pin 5 of U6 and D1 is a zener.
But C17 is good (5v is ground for you)

I will correct.
Thanks

[Skippy]

The other end of C17 is wrong - goes to U4. Also Q11,Q12 look wrongly connected.

[bernte_one]

hello

good work, please more details,
partlist, corrected pcb etc.
would try it

regards

[Patrick]

The other end of C17 is wrong - goes to U4. Also Q11,Q12 look wrongly connected.

The same as F1235

[Skippy]

Boy, you're hard work...... the bottom end of C4 should go to the input of the opamp. On your circuit IT DOES NOT.