UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

FERNSEH · 30th Sep 2018, 10:56 pm

It's the David Looser circuit that appeared in a 1984 Practical Television magazine titled "A System A Modulator"
Uses two MC1496 modulator ICs and BFY90 transistors in the carrier oscillators.

DFWB

30th Sep 2018, 10:56 pm	#3
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: Identifying a System A modulator It's the David Looser circuit that appeared in a 1984 Practical Television magazine titled "A System A Modulator" Uses two MC1496 modulator ICs and BFY90 transistors in the carrier oscillators. DFWB