SBG-PID

[bernte_one]

i have several pcb here
delivery eu wide is no problem

my shack is to hot to work in the summer too
next weeks the wheather calmes down, and the temparature is more comfortabel so solder


should i make a thread in the buy sell trade area here in forum?

i have much projects on stock, and my wife is nerved of all these green, blue, yellow stuff flying around

[dbanner]

Still no working prototype? That's not good. This is one weekend project. "ground balance with meter discrimination" HA HA HA

[Andi68]

I take the soldering iron, but the sun .....
But if I have 2 or 3 hours, is very much progress

[nonkapo]

Guys is there anyone who have ordered extra PCB and will to sell one or two?

[ivconic]

Use proper soldering iron and not:

[Andi68]

I have already soldered a few components, LF357 H is also available
and other LF357 for testing.
I still have to order a few components.
But it's just too hot for me to solder

[bernte_one]

soldering is a work for autumn or winter

on the evening hours i prepare my shack and let my printers work
(coil shells, enclosures, stem parts)
so i can start when summer ends

[6666]

Thanks dbanner.
In the mood I'm not right ....
I think few are motivated to build the circuit because there is no proof that it works.
Sometimes I think I give up the project myself.

I have started but got a few other things to do

[Andi68]

Thanks dbanner.
In the mood I'm not right ....
I think few are motivated to build the circuit because there is no proof that it works.
Sometimes I think I give up the project myself.

[dbanner]

I am in the process of preparing the components.
As many used parts of the scrap as possible should be used.
This takes a little more time than ordering new ones
I mean, it's tight on the board.

Take your time, and good luck to you. I'm surprised nobody can yet produce a working device after so long.
I'm not in the mood for hobby building these days. I'm feeling uninspired to build yet another pulse machine.

[Andi68]

I am in the process of preparing the components.
As many used parts of the scrap as possible should be used.
This takes a little more time than ordering new ones
I mean, it's tight on the board.

[Andi68]

LF157, LF257, TLE2081, CA3130?

[dbanner]

[ATTACH]46787[/ATTACH]Leave the soldering iron. The beach is more pleasant.

Why don't you post a video demonstration of your working unit? A bench test for example.
It would be nice to see performance of original working prototype for comparison of results of subsequent builds.

[dbanner]

A look at the respective data sheets of the NTE937M and the LF357N show exactly the same AC electrical characteristics. The NTE937M is a direct replacement for the LF357N. The other characteristics such as max. supply voltage, diff. input voltage, input voltage range etc. are not an issue, since they are well within the operating criteria for this circuit.
Another thing is that there are no fake NTE chips when ordered from NTE supplier/agent/vendor.
I only offer one suggestion, as I am sure there are other chips which could do the job.

[6666]

[ATTACH]46787[/ATTACH]Leave the soldering iron. The beach is more pleasant.

That beach even has a McDonalds