Stuart real schematic

[Nadhir]

I make the pcb as it is on geotech1 but it does not work until I toutch the collector of tr3 beeps rapidly vr1 and vr2 does nothing when I turn them I heard there are some bugs but I don't have enough knowlege to find out what is wrong so please if anyone have a real working schematic I will be very greatfull
Note:
I used A719 transistor in TR3
And c1815 in TR2
A1015 in TR4
BC212 in TR5
25khz cristal
Vr2 80 k ohm

[homefire]

Which Stuart ?

[Nadhir]

Which Stuart ?

Stuart 1

[homefire]

This one ?

[Nadhir]

yes man

[Nadhir]

anyone can help me please

[kt315]

try search forum http://www.geotech1.com/forums/searc...earchid=426767

[homefire]

Help with what may I ask ? Not heard of any error in this document.

[dbanner]

pins 12 and 13 of IC1 should be joined on pcb layout. They are not. Also tranistors tr2 and tr3 emitter base collector are mislabelled on parts layout diagram. The scematic is correct. I built this some time ago and it works. Use 32Khz crystal if you can get one. Salvage one from an old clock. 25 Khz will adversly affect the sample timing.

[Toros]

pins 12 and 13 of IC1 should be joined on pcb layout. They are not. Also tranistors tr2 and tr3 emitter base collector are mislabelled on parts layout diagram. The scematic is correct. I built this some time ago and it works. Use 32Khz crystal if you can get one. Salvage one from an old clock. 25 Khz will adversly affect the sample timing.

Dbanner,
Does this statement for this detector refer either to another? There is no crystal here! If I correctly see from the link (stuart1_300.pdf) pin 12 and 13 of IC1 are properly connected.

[kt315]

lool clock oscillator part. youll see clearly the quartz resonator 40kHz.

[Toros]

Yes correct! I have not seen the scheme as a whole. I apologize. My post is not correct.

[Nadhir]

Dbanner
Can you give me the correct pcb layout please

[Nadhir]

Homefire
I make the project man doesn't work there is a problem

[Nadhir]

if anyone can give me the correct pcb I dont want to tell me the transistors are mislabelled how can I fix them
if you want to help me I really appreciate it but give me details that can actually help