UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Grundig TK20 and Truvox R82. Help Required Please.

barrymagrec · 12th Jan 2021, 10:28 pm

Measured inductance will change with frequency as the characteristics of the core material vary with frequency.

Leevers Rich measured their head inductances at 10Kc (Khz), I don`t know how much that affected the reading compared with measuring at 1Kc but 1 and 10 were the options on the Marconi TF1313A that was used.

12th Jan 2021, 10:28 pm	#140
barrymagrec Octode Join Date: Dec 2017 Location: Morden, Surrey, UK. Posts: 1,557	Re: Grundig TK20 and Truvox R82. Help Required Please. Measured inductance will change with frequency as the characteristics of the core material vary with frequency. Leevers Rich measured their head inductances at 10Kc (Khz), I don`t know how much that affected the reading compared with measuring at 1Kc but 1 and 10 were the options on the Marconi TF1313A that was used.