For sale bare boards for Delta Pulse/Sniffer XR-71

[Toros]

No! 353 is a double amplifier and 357 is a single amplifier. Their pinouts are different.

[keith777]

lm318 is good on slew rate but we must use just JFET/mos-fet opamp. ne5534 does not work too, that was checked by russians.
look datasheet lt1122, op42, ad845.

can a. LF353P chip be used instead of a LF357N chip?

[nonkapo]

Thanks

[kt315]

DP is real/true non motion with extremally low SAT speed.

[nonkapo]

Just to confirm, Delta pulse is static/non motion type detector right or wrong?

[kt315]

i almost remake the layout and order will be in near time, before chinese new year i hope. i do some change pinplacement of transitors on all-in-row. thats good if you use desoldered transistors with short pins. also i do isolate copper pouring under MOSFET because if you set MOSFET without isolation there will be connection of DRAIN to +E.

[kt315]

How to improve the interference of 1MX1M coil high voltage line tower

in DP the PPS was tuned sure to 100 Hz/PPS to decrease the interference if we have 50Hz of standart.
thought you can not decrease effect of hight electrostatic charge accumulation.
the way of discharding - your body - the case - the cable - the coil - the ground.
everywhere you see here is very high and fastest accumulation of the electrostatic field charge.
i call that TESLA EFFECT because Tesla did try to transfer the HV energy via especial tower via air,
without wires.

PLEASE I ASK YOU AGAIN. do not be back to matter of the interference more never.
i told ALL and told many times. if you are good in electronics you must understand the interference,
if not you must learn the electronics. then you will answer like me. NO PROTECTION
FROM INFLUENCE FROM POWER LINES. BLACK OUT THE POWER STATION BY TNT IMPACT.

[Andi68]

That makes me very sad, I wanted to rebuild a DP for the gold search

[kt315]

guys

i sold last board and new batch of PCB will be ordered just in January. thanks again to my supporters.

[filos]

халява-great russian language ....

[filos]

OK. 20 € will send

[kt315]

14 euro the board. HV diode 2 euro, price you can see https://www.lemona.lt/paieska/?sn.q=stth1210
2 euro for radiators and shipping.
all summ 18 euro.

opamp tester board - 2 euro. holders for LEDs are FREE, 1 knob is FREE - BONUS (haliava).

[filos]

I take how much Together with the diode and two radiators.

.
how much euro should send

[filos]

I take how much Together with the diode and two radiators.

[kt315]

hello
Hiena asked me to sell. but does not pay. last board.