Since I've had a chance to hold the original Signetics 5534, they all had the white strip at the beginning like in the picture above. The year of production was about 1990 to 1995. I need them for a MM preamplifier called actidamp mk3, which was designed and optimized for NE5534N. @pras1170 Can you also prove the origin where you bought them? What would be the shipping to Slovakia?
From wiki:
In 1975, the company was acquired by Philips, who continued the brand for some years. In the United States, Signetics reached its manufacturing height at around 1980. Later it was fully integrated into Philips Semiconductors (now NXP).<a href="https://en.m.wikipedia.org/wiki/Signetics#cite_note-SVHA-1"><span>[</span>1<span>]</span></a>
In 1995, Philips spun off the assembly and test operation in South Korea, which was started by Signetics in 1966, as an independent subcontract service provider. They continue to use the name "Signetics". Since 2000, the Signetics brand is primarily used by the Young Poong Group.<a href="https://en.m.wikipedia.org/wiki/Signetics#cite_note-3"><span>[</span>3<span>]</span></a>
In 1975, the company was acquired by Philips, who continued the brand for some years. In the United States, Signetics reached its manufacturing height at around 1980. Later it was fully integrated into Philips Semiconductors (now NXP).<a href="https://en.m.wikipedia.org/wiki/Signetics#cite_note-SVHA-1"><span>[</span>1<span>]</span></a>
In 1995, Philips spun off the assembly and test operation in South Korea, which was started by Signetics in 1966, as an independent subcontract service provider. They continue to use the name "Signetics". Since 2000, the Signetics brand is primarily used by the Young Poong Group.<a href="https://en.m.wikipedia.org/wiki/Signetics#cite_note-3"><span>[</span>3<span>]</span></a>
Everything has its origin, I this is genuine, rest assured, I will distinguish the true and false, the printing font can not do my picture font, the original things, can not change his font, China Post
