two box

[RH-Lightning]

Hi guys

old thread, but maybe someone can share their experience with building and using two-box?
I have built Delta Pulse and it's good, but 1x1m loop is not handy in a forest and bushy areas.
Looking at simple two-box designs that are handier, but there are very polar opinions on the internets.

[GeoMax]

Hello kt315,

thank you for your reply. I think this helps me to understand the circuit better.

Chris

[kt315]

1. TX tuning capacitor should be in position as on the circuit. by the cap, by its value, you can change a current in the TX coil.
this in not current resonance you sure need to get, but just for the control of current, ie TX power in ground.

[GeoMax]

Hi,

I have some questions to the T-R-Locator.

1) Is the schematic drawn correct? Because the TX coil is in series with the tuning capasitor but the RX coil tuning capacitor is in parallel connected to the coil. From my feeling the TX tuning capacitor should be also in parrallel to the coil like the RX tuning capacitor.
2) For what actually is the tuning of the coils for?
3) How and what is to be tuned?

Thanks in advance

[rajesh]

[MartyJ1963]

TR Locator Redrawn

Hi all. Can someone please be kind enough to check my layout for any mistakes,,,,appreciation in advance. Regards, Marty.

[MartyJ1963]

@Rajesh,,,Thanks. Regards, Marty

[rajesh]

Hiya Pidgeon, Do you have a parts list and wiring diagram available to share for your design please? Regards, Marty.

[MartyJ1963]

Hiya Pidgeon, Do you have a parts list and wiring diagram available to share for your design please? Regards, Marty.

[rajesh]

hi friends

i search pcb in pdf version .

thank you

hi any one has tiny coil configuration of this locator

[bernte_one]

The problem was solved.

can you tell how?

[fmnotes]

The problem was solved.

[fmnotes]

Hi to all . I just assembled the board with all the materials. I want your help, those who know to help me. Q4 is heated by the transmitter, Is it normal or not? Also the crystal oscillates normally it also gives me 2.05 kHz output but from the r5 resistance Up to the coil after the transistors there is no oscillation frequency is this normal? The receiver from what I see works normally, but the transmitter I do not know if it works normally. I would ask anyone who knows to help me and tell me What I can do to make this machine work normally. In my tests I use a coil wrapped in ferrite. Thanks

[kt315]

sevzirfo is seeking at x-Finland land. you perhaps know that part of Finland territory was been taken by Stalin and now it is under Russia.
Vyborg is former Finland city.

[6666]

please less requests on result and more about your job process/progress from your side. http://sevzirfo.narod.ru/nahodkideep.htm

Gee Kt315 thats scary stuff, yesterday two men one Australian and one British, were killed on the Solomon Islands working to remove undetonated wartime explosives, The Solomon Islands is littered with undetonated explosives – (UXO) – from World War II.