Push-pull oscillator

[WM6]

Nice, clear, you use it in your VLF/IB project. I was thinking that this could be part of some Q-response model.

[scs]

By using this scheme you can construct very good detector.

[WM6]

Hope we will see one more of your great MD constructions, using this push-pull solution.

[scs]

But the whole scheme-No.I want to see someone who produces it and earn money.

[WM6]

But the whole scheme-No.I want to see someone who produces it and earn money.

Maybe you need to show (demonstrate) your detector to Detech company, if it perform better than their EDS detector they should be interested?

[scs]

In this business, no one is willing to pay for foreign inventions.I are amateur, not producer .This is my hobby.

[dbanner]

I saw this tx oscillator circuit.
Is the sinus waveform oscillation centred on 0Volts?
I want to try replace oscillator on old whites 5000D circuit. Can I try this one? SCS, what is your opinion.

[scs]

Not good. The 5000 coil has very low inductance. This oscillator is good for DD coils

[dbanner]

Not good. The 5000 coil has very low inductance. This oscillator is good for DD coils

yes, I saw between 6mH and 10mH on your schematic.

[scs]

The problem is that in most factory search coils there are parallel connected capacitors. In this circuit the capacitor is connected in series

[dbanner]

The problem is that in most factory search coils there are parallel connected capacitors. In this circuit the capacitor is connected in series

I do not own a white's 5000D, I had plan to make 5000D circuit from schematic diagram, with mods to make a vlf all metal deepseeker.
I plan to make in modular form, in order to try different things.
Your oscillator design seem interesting.
The coil, I plan to make my own DD. Here is what I have so far. Only thing missing is TX oscillator.

[Teleno]

This oscillator will destroy the transistors because the reverse Vbe of T1 and T2 is way -7V, the tolerable maximum being -5V.

[dbanner]

[dbanner]

The coil in your simulation needs to be between 6mH and 10mH.

[Teleno]

Here's my variant with MOSFETs .