Magnum 2

[walkman]

Another Bulgarian VLF machine

[Orbit]

Another Bulgarian VLF machine

Yes!

[cnckecgo]

I hope something good will come out and the circuit maker will be happy. Thanks to the ivconic master, the forum will come to life.

[ivconic]

Here it is, need to be checked from mistakes, i am a bit out of focus, probably i made some mistakes as usual.
Let me know and i will correct them.

[gurdal]

A fast and quality drawing as always,
perfect

[cnckecgo]

very good quality drawing is great .thank you great master

[ivconic]

... and first "fatal" mistake spotted!
C and E at Q3 were shorted!

Corrected:

[Orbit]

Is it possible to connect the VDI unit from Roderico to this circuit?

Yes

[Orbit]

They say that this vlf detector in Bulgaria is called a violin or Gadulka but I'm not sure, sure colleagues from Bulgaria can say more about it...Back in 2006, when I visited Vladimir Lilov, the manufacturer of the Golden Mask detector he gave me a scheme that is similar to the exception of the receiver and transmitter.When I was repairing the Nexsus first model I remember that George used if I remember the same receiver and IC 4007.The scheme that Lilov gave me at the time was a scheme called Varna-Gadulka..

[gurdal]

... and first "fatal" mistake spotted!
C and E at Q3 were shorted!

Corrected:

Hi,
Ivica and my Orbit master,
If errors in the drawing have been corrected.
I want to make pcb.
My ivica master, according to which box did you draw the pcb?

Kind regards
Gurdal

[ivconic]

Hi,
Ivica and my Orbit master,
If errors in the drawing have been corrected.
I want to make pcb.
My ivica master, according to which box did you draw the pcb?

Kind regards
Gurdal

I don't know if there are more mistakes, i assume there must be some mistakes more... or not, not sure.
The purpose of the forum is to gather people and unite in joint work on an idea.
I quickly drew the pcb, it's not ideal, it can always be better.
But I am not able to find mistakes now, at least until a certain period of time has passed.
That's why you others are here, so do your best and check the draft.
Don't wait for someone else to do it.
The PCB is for my favorite box, it's a box similar to the Fisher 12xx series box.
Such boxes are made in Bulgaria. I have no detailed information.

[CEBRAIL]

bd 140 collector does not output voltage on c b has voltage winter and c does not