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

Ted Kendall · 15th Sep 2015, 6:33 pm

The main reason for the design of the FFRR being as it is is that Decca originally intended to issue stereo discs with the left channel cut laterally and the right cut vertically (see Arthur Haddy's contribution to Gilbert Briggs' Audio Biographies). When it became apparent that Westrex and the rest were heading towards 45/45, Decca were quite happy to fall in with it to promote a common standard, as the pickup and cutter were easily adapted.

Thus the FFRR pickup has a lateral-only coil giving a mono output. You can parallel the L and R outputs, but in this case it simply eliminates any contribution from the vertical coil, giving the same result.

15th Sep 2015, 6:33 pm	#26
Ted Kendall Dekatron Join Date: Jul 2008 Location: Kington, Herefordshire, UK. Posts: 3,670	Re: Restore a Beau Decca The main reason for the design of the FFRR being as it is is that Decca originally intended to issue stereo discs with the left channel cut laterally and the right cut vertically (see Arthur Haddy's contribution to Gilbert Briggs' Audio Biographies). When it became apparent that Westrex and the rest were heading towards 45/45, Decca were quite happy to fall in with it to promote a common standard, as the pickup and cutter were easily adapted. Thus the FFRR pickup has a lateral-only coil giving a mono output. You can parallel the L and R outputs, but in this case it simply eliminates any contribution from the vertical coil, giving the same result.