[elecena] transoptor 6N138 DIP-8 EL - zmiany ceny transoptor 6N138 DIP-8 EL - 2.34 PLN https://elecena.pl/product/5247442/transoptor-6n138-dip-8-el 2015-07-15 transoptor 6N138 DIP-8 EL - 1.90 PLN https://elecena.pl/product/5247442/transoptor-6n138-dip-8-el 2015-11-06 transoptor 6N138 DIP-8 EL - 2.34 PLN https://elecena.pl/product/5247442/transoptor-6n138-dip-8-el 2022-03-01