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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders. |
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6th Oct 2017, 3:44 pm | #1 |
Dekatron
Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 8,195
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Test set type D 10S / 10610
Hi Folks, can anyone point me in the direction of schematics etc for this meter. I was sure I'd seen something on the forum about it, but a search did nor reveal anything.
Thanks, Ed |
6th Oct 2017, 4:10 pm | #2 |
Nonode
Join Date: May 2007
Location: Preston, Lancashire, UK.
Posts: 2,511
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Re: Test set type D 10S / 10610
Ed,
I believe you need AP1186E, Volume 1, Section 9, Chapter 1 - unfortunately I don't have this! It might be worth checking whether TNA, Kew have this part. Andy |
6th Oct 2017, 4:35 pm | #3 |
Dekatron
Join Date: Aug 2016
Location: Colchester, Essex, UK.
Posts: 4,108
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Re: Test set type D 10S / 10610
There is a circuit diagram on here, for sure, but if i remember right there is at least one copy that has been amended to show the 'values found' within the contributor's own meter.
I just searched under 'Avo model d meter schematic' and found a couple of versions. If there are any specific component/bobbin values you need to know, shout and i will report back with details from my 'best' meter. |
6th Oct 2017, 9:01 pm | #4 |
Dekatron
Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 8,195
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Re: Test set type D 10S / 10610
Thanks Gents, I'll see what I can find.
Ed |
6th Oct 2017, 10:27 pm | #5 |
Dekatron
Join Date: Apr 2005
Location: Bewdley, Worcestershire, UK.
Posts: 4,748
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Re: Test set type D 10S / 10610
Does this help? It probably came originally from Peter Munro, like most Avo circuits!
Phil
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Phil Optimist [n]: One who is not in possession of the full facts |
7th Oct 2017, 12:18 pm | #6 |
Dekatron
Join Date: Aug 2016
Location: Colchester, Essex, UK.
Posts: 4,108
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Re: Test set type D 10S / 10610
Thanks Phil, that was one of the ones i had seen before....but note that it is a modified diagram!
Looks good actually, apart from the Ohms range windings which sit on their own board- those values of 186ohm and 15ohm seem to relate to the 40/47/48 series of meters- the values for the Model D will in my experience be around 235ohm and 20ohm respectively; when i fitted these values in a Model D the low range and high range were found to be satisfactory. It's easy to get caught out! |
7th Oct 2017, 8:50 pm | #7 |
Dekatron
Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 8,195
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Re: Test set type D 10S / 10610
Thanks Phil, that was the one I'd previously seen.
Ed |
12th Oct 2017, 9:07 pm | #8 |
Dekatron
Join Date: Aug 2016
Location: Colchester, Essex, UK.
Posts: 4,108
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Re: Test set type D 10S / 10610
- Just commenting to confirm post #6; (have double checked)
The windings in question (which are at about 3 o'clock on the diagram) BROADLY correlate to the resistance/s found at centre scale: Model 40/47A/48A - centre scale- 20/200 Model D - centre scale- 25/250 These windings are often found to be overcooked/destroyed, presumably from misuse. |
13th Oct 2017, 7:33 pm | #9 |
Dekatron
Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 8,195
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Re: Test set type D 10S / 10610
Thanks Gents, with luck I'll get a start on it next week.
Ed |