Delta Pulse

[Geo]

i tryed many times the built Delta but not working, i have four same pcb and even connected 2-6 pin in 555. but not all of them working. now i will try xr71 sniffer. its similar with delta but not same according to me. may be i built xr71 too.
and i want to know your msn or other online talking address.

Hi gemini. XR71 is exactly the same with Delta Pulse.I believe that you have problem at first stage.You can email me on [email protected] .I have no icq.
Geo

[Geo]

hi geo,

yes i connected pins between 2-6 (555), Coil and jfet r warming still.Between Out put LM556 and jfet havent signal. There is no AC voltage at this point. If i dont use the coil, resistor (680R) burning. And constant ther is a sound and i can adjust the this sound using the pots at the left side. I check the board there is no mistake.
i still dont know there is lack connection or not.
do u use msn-icq ?

The coil warming because T1 is continue in On condition (problem with T1 or D1-556). Check pin 5 of D1 for pulse, after it pin9 of D1.If no try to deconect the T1 and the D2. And check the volts between +E,-Eand gnd. Good luck

[gemini]

hi Geo

i tryed many times the built Delta but not working, i have four same pcb and even connected 2-6 pin in 555. but not all of them working. now i will try xr71 sniffer. its similar with delta but not same according to me. may be i built xr71 too.
and i want to know your msn or other online talking address.

[Geo]

Hi gemini. I was for holidays. Now what about the condition of your delta pulse?

[gemini]

Delta Pulse

Your Delta is impressive, have you right schematic ? or may be i change some connection to work. i built the 4 board but not working.

[jcm05]

Hello,

After having left me of the forum a few weeks I see that the DELTAPULSE always fascinates as much.

For my part and after having passed a lot of evening to try to improve my MD it detects a coca to 65cm maxi with a strong and constant signal.
26 to 28cm for a piece of 2 euro.

Attention the implantation published higher on the forum doesn't correspond to the last version and there is a mistake of inversion between VD12 and VD13.(last version: Rev250404).


Good luck
JCM

[gemini]

Delta last words

Dont try the built this Delta project. Absulatelly not working, has lack and wrong connections. thanks for your help

[gemini]

Delta pulse

hi geo,

yes i connected pins between 2-6 (555), Coil and jfet r warming still.Between Out put LM556 and jfet havent signal. There is no AC voltage at this point. If i dont use the coil, resistor (680R) burning. And constant ther is a sound and i can adjust the this sound using the pots at the left side. I check the board there is no mistake.
i still dont know there is lack connection or not.
do u use msn-icq ?

[Geo]

"Where is the meter connection ?"
At jp1 and jp2 (parallel with R37)

"When i connected so that coil getting warm. Please explane me."
check the polarity of Jfet. If you have a scope check the output pulse.
Don?t forgot to make a jump between pin 2 and 6 of ic8 (555).
Good luck

[gemini]

hi all, Delta Pulse

i connected these legs according to delta_p_diagram below, Are they right ?

HP = headphone OK.

TUNE = button OK.

TRShold = all legs connected, P5, OK.

GAİN = Two legs connected P4 OK. , other leg is empty ?

SENSİVİTY = Two legs connected P2 OK, other connected TR5 OK ?

SİGNAL = Two legs connected P1_1, P1_2 OK, other connected TR4 OK ?

NOİSE = Two loegs connected P3 OK, other connected TR3 OK ?

Where is the meter connection ?

When i connected so that coil getting warm. Please explane me.

[Geo]

if you have problem with delta pulse you can send me the pcb to check it but the next month .

[Gosho]

The firm Mikron is from Varna, Bulgaria
http://www.mikron.hit.bg/

[Geo]

On the printed circuit it is necessary to add a strap between the paw 2 and 6 of the IC8 Check up the spaces of the IC pins and clean the pcb. The detector must work. Sorry but this time i am very very busy.

[Largesarge]

i gave my best shot above, I have never built it. I would suggest you get in contact with the guy who designed it in the first place, whoever this MIKRON Electronics is.

Good luck.

[gemini]

lack connection

lack connection, dont you know these ? how did you bulid it ?