TGSL problem: constant beep

[jladre]

Hi cdi! Can you post a photo of your board maybe we can spot the problem there..many eyes is better then two i also suffer that problem too and it just the orientation of the transistors near bd140.

[paku]

this is my old problem same like you
https://www.youtube.com/watch?v=TrPHYAnW-xI

this error is i have fix just check your wire use all copper wire then check you connection from board to pot the P10 P20 P30 then K1 K2 K3 then the coil replace the TX To RX try that

[paku]

this is my finish TGSL
https://www.youtube.com/watch?v=W2BfmYQmaDk

[jladre]

Hi paku! Very good video i hope i can make my tgsl work like that.

[paku]

you will, just make sure you connection is good and use 4 wire connection with shield for coil

[CDI]

Today i spoted my transistors are not 2n2222 and 2n2907, they are named CTPN2222 and CTPN 2907, in schematic they are named 2n2222 only. What i need, NPN or PNP?

[WM6]

Transistors are ok (NPN and PNP), but you need to check legs orientation, this could be different, depend on producer.

[jladre]

Atlast i solve the beeping problem of my tgsl.. it just happen that the pigtail of rx coil was break..and the j103 transistor that i replace to my old ksp246 (bf 247 from the schematic) which i thought better was one of the culprits..
Tgsl beeping problem solve: http://youtu.be/s8wmNdpcCDs

Now im ready to finalize the cable, housing, and proper nulling.. thanks to all who give an idea of the problem

[CDI]

I recorded video of my problem. Does anyone had this sound and what is problem here? One guy told me, he tried on 3 PCB's, and problem is same.
Can somebody give me picture how to wire pots? Maybe is my mistake there...

https://www.youtube.com/watch?v=R5ypw_Q0faA

[jladre]

I believe that your problem is in transistor.. why you dont post a picture of your board part placement so that maybe we can spot the mistake?

[CDI]

I believe that your problem is in transistor.. why you dont post a picture of your board part placement so that maybe we can spot the mistake?

I will post my board. Can you take a photo of your pots? Please, jladre.

[getsa]

without searching coil has to achieve an adjustable threshold

[CDI]

without searching coil has to achieve an adjustable threshold

Coil is atached, and work exelent on another tgsl.

[jladre]

Are you using the same parts classification on partlist?

[CDI]

Are you using the same parts classification on partlist?

All parts are same like in partlist, only LM308 replaced with TL081.