SIEMENS Data Book 198384 Edition -

Finely slice the 12 yellow onion and 4 garlic cloves and set aside Fill a large pot with water, stopping 3 inches from the top Bring this

your absolutely bang on, more than likely early 68, the ferrite core looks like it has the MullardFerrox cube FX designated 4 slot inductor

4king slot wallet Mn-Zn Ferrite Mn-Zn soft ferrite cores for high frequency power suppies MaDC-F ® Magnetic slot wedges for Motors · Metal Powder Core HRM series · Amorphous

4k slot TDK produces a miniature pot core series These tiny pot cores are used in a variety of applications, including inductors for wristwatches,