russian transistor

[totob]

hi
can anyone help me to find western equivalent of these transistor
kt209k
kt3102

[kt315]

they all are low voltage and you can use any type.
popular BC550 BC560 2N3904 2N3906 asia S9012 S9014 etc

[totob]

thank you kt315

[kt315]

40 electronics schematics on KT315. child's constructor from USSR era. 'elektronnye kubiki' sorta electronics cubes - you do not need to solder nothing here.

https://www.youtube.com/watch?v=HfpGP-fMDVE

http://rw6ase.narod.ru/00/rk1/mrk2.html

[kt315]

simplest metal detector on one soviet KT315 transistor https://www.youtube.com/watch?v=q3c9AzylHYc