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FERNSEH · 7th Feb 2018, 2:03 am

Hi Nick,
The tool shown in the first picture is a template and is used for positioning the line linearity sleeve. Information from the servicing notes for the Ferguson 406T:
Line Linearity Correction A closed loop, magnetically coupled to the deflector coils and critically positioned in relation to them, is fitted to the picture tube neck. If a new tube is fitted, the loop must be transferred to it from the old one. To assist positioning the loop, a template is provided and will be found taped to the top plate of the chassis assembly. fig 1 illustrates the use of this template.
It's most likely the VT161 employs a similar scanning assembly as the 406T, the Marconi version of the 406T was the VT157.
With regard to the line output transformer, the addition winding is used to supply the reference pulse to the flywheel sync circuit incorporated in special fringe area receivers. Not used in the VT161.

DFWB.

7th Feb 2018, 2:03 am	#7
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: Marconiphone VT161 17" TV Hi Nick, The tool shown in the first picture is a template and is used for positioning the line linearity sleeve. Information from the servicing notes for the Ferguson 406T: Line Linearity Correction A closed loop, magnetically coupled to the deflector coils and critically positioned in relation to them, is fitted to the picture tube neck. If a new tube is fitted, the loop must be transferred to it from the old one. To assist positioning the loop, a template is provided and will be found taped to the top plate of the chassis assembly. fig 1 illustrates the use of this template. It's most likely the VT161 employs a similar scanning assembly as the 406T, the Marconi version of the 406T was the VT157. With regard to the line output transformer, the addition winding is used to supply the reference pulse to the flywheel sync circuit incorporated in special fringe area receivers. Not used in the VT161. DFWB. Attached Thumbnails Last edited by FERNSEH; 7th Feb 2018 at 2:11 am.