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

ms660 · 20th Mar 2019, 3:41 pm

For head azimuth adjustment you need a known good recording that's been done on a machine that's been set up correctly or a correctly recorded test tape that has a high frequency test tone on it.

Failing that, if there is a wear ridge on the head you can align to that to get you in the ball park to how it was before if you have a keen eye and a magnifying mirror.

Lawrence.

20th Mar 2019, 3:41 pm	#67
ms660 Dekatron Join Date: Apr 2011 Location: Cornwall, UK. Posts: 13,454	Re: Ferrograph 4A: Restoration advice needed For head azimuth adjustment you need a known good recording that's been done on a machine that's been set up correctly or a correctly recorded test tape that has a high frequency test tone on it. Failing that, if there is a wear ridge on the head you can align to that to get you in the ball park to how it was before if you have a keen eye and a magnifying mirror. Lawrence.