Delta Pulse

[kt315]

I have finaly a sound from my delta pulse after i monted the volume potentiometer, but its a continued sound (~15s) repeated each 30 seconds i whould like to know how i reguletd the potentiometers, i hav'nt oscillo.

please KT315 tel me true or false :
- damping resistor D5=500 ohm for smaller coil

- damping resistor D5=2.2 k for big coil (like 1m x 1m)

cordialy

if you advise to use DP on short MAIN DELAY time... with smaller coils... you must decrease damping resistor. for big MAIN DELAY this rule is not important. you can use 2.2k resistor in the case. I always repeat DP is not working on short MAIN DELAY, because it is a deeper.

[Belief]

Hi KT315

what kind of wire you are used for 1*1 coil ?

please guide me.

Thanks...

[apocalypto]

I use a 25 cm coil serach 30 turns of 0.5 enemable CU it is correct?

[kt315]

Hi KT315

what kind of wire you are used for 1*1 coil ?

please guide me.

Thanks...

I used isolated wire what you can find out in any electrotechno shop. it is 3,5 mm external diameter, 2 mm diameter of copper.

good luck!

[batman1972]

Delta Pulse

Dear KT315
Thanks for all ur guide around DP.
Can i have the final PCB and Part list of DP Modify by u pls?
May i?
email: [email protected]
Thank u and goodluck

[kt315]

dear batman,

I used 'classic layout' PCB that did my friend in Latvia. I see many versions of PCB layout in the forum... huge amount!... can say nothing about these! you do all on your funk and risc

[ivconic]

I am also using that pcb. Made over 30 DP's so far.
Very good pcb indeed!

[kt315]

oops! all photos above are not mine. these done by Sergei, aka Treiti.

[batman1972]

DP

My friend KT315
Thanks for ur reply.Did u construct GoldScan 4 before?

[kt315]

Lithuania is very very poor on golden occurence. nothing of goldfields here. what I will do with GoldScan? that is the question.

[WM6]

Lithuania is very very poor on golden occurence. nothing of goldfields here. what I will do with GoldScan? that is the question.

HI KT315, did you measured power consumption of your Delta Pulse? Thanks

[kt315]

HI KT315, did you measured power consumption of your Delta Pulse? Thanks

hi. write me what power pulse width you mean of, I will measure a current for you.

[nelson]

Hi kt315, finally i solve my problem with no sound from delta pulse. The problem was a broken volume pot.
The potenciometer, was rotating fine, but for some reason, there was not resistance. I presume a factory fail.
Anyway, thanks to you and all members who help me to find the problem and for shure i had learn a little more about delta pulse and how to detect fails.

Regards

Nelson

Nelson, with T9 soldered you must get a sound in any THRESH tuning position, I think. try reconnect that I did draw here and you must hear a sound. decrease R44 value to 20-33 Ohms. desolder R45 too. also check R46 - it must be 2-2,2 Ohms.

[WM6]

hi. write me what power pulse width you mean of, I will measure a current for you.

Hi KT315, I am not interesting in single pulse but in fully DP battery consumption.

Hi KT315, aš nesu įdomi galia vienetinio impulso, bet visiškai Delta Pulse baterijos suvartojimą.

[SIBI]

C4, C5, C6 are 1,5 nF or 150pF like in other schematics?