Taylor 130C insulation tester - a question. - Page 2 - UK Vintage Radio Repair and Restoration Discussion Forum

SPCh · 1st Aug 2008, 4:21 pm

Sorry, I got detached; only just seen the revised circuit and subsequent exchanges.

It looks much better now (and it seems to work well, though I'm still going to check the sums !).

GMB has to be right about the 270 k connection - try putting a C across your 10M testpiece, and see how much longer (without pressing the charge button) it takes to give the right value.

Satisfactory conclusion, and we've all learned a bit. Expensive on the booze, though !

Mike Phelan · 2nd Aug 2008, 9:03 am

I did actually connect the tags together and the switch was OK - it's quite a robust and open device. My test "C" was a yard of twin flex and the meter did not come up instantly - a second or two with the 10M res.

Oh well - back to dealing with simpler things with more than a few resistors and a meter in them.

GMB and SPCh, thanks for a very interesting discourse; I'll close the thread now, but if anyone finds one of these or any literature regarding it, please PM me as I would be very interested indeed to look at its innards!

1st Aug 2008, 4:21 pm	#21
SPCh Rest in Peace Join Date: Nov 2004 Location: Antwerp, Belgium Posts: 345	Re: Taylor 130C insulation tester - a question. Sorry, I got detached; only just seen the revised circuit and subsequent exchanges. It looks much better now (and it seems to work well, though I'm still going to check the sums !). GMB has to be right about the 270 k connection - try putting a C across your 10M testpiece, and see how much longer (without pressing the charge button) it takes to give the right value. Satisfactory conclusion, and we've all learned a bit. Expensive on the booze, though !

2nd Aug 2008, 9:03 am	#22
Mike Phelan Dekatron Join Date: Nov 2003 Location: Near Leeds, West Yorkshire, UK Posts: 4,609	Re: Taylor 130C insulation tester - a question. I did actually connect the tags together and the switch was OK - it's quite a robust and open device. My test "C" was a yard of twin flex and the meter did not come up instantly - a second or two with the 10M res. Oh well - back to dealing with simpler things with more than a few resistors and a meter in them. GMB and SPCh, thanks for a very interesting discourse; I'll close the thread now, but if anyone finds one of these or any literature regarding it, please PM me as I would be very interested indeed to look at its innards! __________________ Mike.