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

Ed_Dinning · 6th Feb 2023, 9:50 am

Hi Folks, although I have my own design of HV cap tester, I find that an AVO8, on the R*100 (15v) range is the next best thing.
There is also, on most 8 series AVO's the ability to use a higher voltage for insulation testing. This requires a low power transformer (a few mA) at, I believe, 240v.
Details are given in the AVO handbook and it could be adapted for a switched voltage range.
Discharge capabilities could easily be incorporated.

This could form a nice project and most folk will have a suitable transformer.

Ed

6th Feb 2023, 9:50 am	#23
Ed_Dinning Dekatron Join Date: Jan 2004 Location: Newcastle upon Tyne, Tyne & Wear, UK. Posts: 8,194	Re: Testing for leaky caps Hi Folks, although I have my own design of HV cap tester, I find that an AVO8, on the R*100 (15v) range is the next best thing. There is also, on most 8 series AVO's the ability to use a higher voltage for insulation testing. This requires a low power transformer (a few mA) at, I believe, 240v. Details are given in the AVO handbook and it could be adapted for a switched voltage range. Discharge capabilities could easily be incorporated. This could form a nice project and most folk will have a suitable transformer. Ed