UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - AVO 8 - does the transformer step UP low AC voltages?

pmmunro · 13th May 2022, 7:46 pm

Roger,

Yes, the current transformer in the Model 8/9 range is an autotransformer. This is also true for later designs, including the Model 10 and the Models 16 to 21 range.

Earlier designs of Universal Avometer, Models 7, 40 and their predecessors, the 20, 34 and 36 range Universal Avometers used current transformers with separate primary and secondary windings.

PMM

13th May 2022, 7:46 pm	#6
pmmunro Octode Join Date: Jul 2004 Location: Dundee, UK. Posts: 1,813	Re: AVO 8 - does the transformer step UP low AC voltages? Roger, Yes, the current transformer in the Model 8/9 range is an autotransformer. This is also true for later designs, including the Model 10 and the Models 16 to 21 range. Earlier designs of Universal Avometer, Models 7, 40 and their predecessors, the 20, 34 and 36 range Universal Avometers used current transformers with separate primary and secondary windings. PMM