Kind of difficult to believe this - never yet seen a new capacitor with 360 ohm ESR.
If the datasheet states also so then that is the way these were designed. Usually the new capacitors are smaller than old ones.
Your comment made me double check. My eysight is not what it was and the characters displayed on the component tester screen are small.
But yes, for that new, brown Nichicon 3.3 ohm EXP series, 0.36K ohms, 360 ohms, is displayed on the screen.
I realize that the tester I have is not the most precise instrument on the planet but it has shown believable and mostly consistent low ESR's when checking the old original capacitors as I removed them. That is also true of the new UKL capacitors I installed to replace the orange Elnas with values other than 3.3mF.
If you take random half a dozen other capacitors of roughly the same capacitance then what does the device show?
Can always be that the new capacitors are defective...
Or it may be a device software glitch...
Can always be that the new capacitors are defective...
Or it may be a device software glitch...
When I made my selection for the 3.3 ohm capacitors I received, I used filters on Digikey's website. The parameters I used provided 6 or 8 choices and I did not scrutinize extereior dimensions. If I did, I probably would have picked one of smaller girth.
Well, that was somewhat intersting. I ran through all ten of the Nichicon 3.3uF I received and six displayed 0.036K ohms. The other four displayed 0.35K ohms.
I have an assortment of 63V 2.2uF and 4.7uF capacitors and spot checked some of those. FWIW those 2.2uF and 4.7uF had what I guess could be called expected physical dimensions.
Except for one, all I tested displayed 0.36K ohms. The oddball was 0.0 ohms
Of course choose caps with same pitch/size (but higher voltage as caps have become smaller) and if film caps are too expensive you could choose bipolar electrolytic caps (coupling caps).
Investigating bi-polar electrolytic caps did not occur to me because I assumed the selection was quite limited.
Think, it´s safe to conclude, that you can´t trust this meter for those particular measurements 😉
Assumptions are the mother of ....... Engrave it in the brain that the idea using polar electrolytic caps in AC coupling applications was not the best idea in audio electronics. It is based on cost. Choices based on cost are never best in quality. Making equal choices based on cost never give you the best quality either. Having a great number of old stuff multiplies the cost to an unreasonable amount of money and work. Outcome of the total calculation could be that it is very worthwhile to pick one (1) "best of the lot" device, discard the others and let that one (1) have the best possible cost no object parts. Parts that can often be found in bulk at various shops for acceptable prices. I call it the "I want Mercedes quality for a Fiat price" method. As an example: recently I got 50 pieces 4.7 µF 50V film caps in 5 mm and paid less than the electrolytic caps cost. With devices numbers are an enemy, with parts numbers are beneficial with regards to cost. Film caps also have an extremely long shelf life compared to electrolytic caps which are best discarded when 10 years or older.
Film caps for small values till about 10 µF are really best for coupling despite people claiming Wima to be mediocre etc. Not many film caps are worse than electrolytic caps 🙂 These are OK as alternative:
https://www.nichicon.co.jp/english/products/pdf/e-es.pdf
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If you repeat these measurments e.g. three times and get the same results then I would say that those other four are defective.
It does seem the TC1 multi-component tester is of no value when checking for ancillary data.. As I went through replacing all of the electrolytic caps except those involved with the tuner, that 0.365 ohm ESR reading was displayed on numerous old and new capacitors.
I primarily got the tester as it was recommended for doing quick checks on transistors. Good transistor or bad transistor. I did use it too to assess capacitors but only their capacitiance. I knew it was supposed to display ESR but I looked at that as a bonus feature. And that feature has proved itself worthless.
I'll admit to having little in the way of test gear. I don't really do enough DIY to make owning adequate equipment worthwhile. Plus I do not have the means to purchase such things so what little I do have was at the budget end of the price spectrum. Or used. Well and truley used.
I debated with myself about the need to replace the main filter caps. I suspect they are OK - there was no evidince that they were not. But they were made in 1977 so not fresh as daisy. I balked at the cost too. The ones that met the requirements were $96 landed cost for the pair. $100 is how nuch I had into this receiver prior to the new main caps. So now, I am double that investment.
My belief was that this receiver is a good one so I hope that belief is validated.
I primarily got the tester as it was recommended for doing quick checks on transistors. Good transistor or bad transistor. I did use it too to assess capacitors but only their capacitiance. I knew it was supposed to display ESR but I looked at that as a bonus feature. And that feature has proved itself worthless.
I'll admit to having little in the way of test gear. I don't really do enough DIY to make owning adequate equipment worthwhile. Plus I do not have the means to purchase such things so what little I do have was at the budget end of the price spectrum. Or used. Well and truley used.
I debated with myself about the need to replace the main filter caps. I suspect they are OK - there was no evidince that they were not. But they were made in 1977 so not fresh as daisy. I balked at the cost too. The ones that met the requirements were $96 landed cost for the pair. $100 is how nuch I had into this receiver prior to the new main caps. So now, I am double that investment.
My belief was that this receiver is a good one so I hope that belief is validated.
12000 uF 63V snap in type of a good series by a known brand are around 6.5 Euro a piece. Always measure physical dimensions and choose a type that has the same dimensions. This can be a higher voltage rated type.
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Money does not always "talk" - I have been using LCR-T4 tester (from eBay) for many years now and it has so far worked reliably.
Yes, my comment was undeservidly harsh. The main reason I acquired a TC-1 was to quick check if a transistor was bad or good.
And it will display capacitance and resistance so it is good for that. But even though it claims to measure ESR, what I've seen it display is the same ESR value for nearly every capacitor I connected to it. That makes me suspect it's ability to measure ESR.
I am about to start another thread on this Kenwood KR6030. Last night I thought I was done with it but after replacing the top and bottom covers, thet giving it a sound check, I discovered the tuner was dead.
And it will display capacitance and resistance so it is good for that. But even though it claims to measure ESR, what I've seen it display is the same ESR value for nearly every capacitor I connected to it. That makes me suspect it's ability to measure ESR.
I am about to start another thread on this Kenwood KR6030. Last night I thought I was done with it but after replacing the top and bottom covers, thet giving it a sound check, I discovered the tuner was dead.
When I was a repair guy I once had a receiver that I put on the shelf as "repaired'. It was disapproved by the quality colleague as "failure". I looked and looked and tested but AM, FM, all inputs, volume functioned like they should. I asked him what the failure was but he said I hadn't looked well enough.
It had a hair sticking to the dial.
It had a hair sticking to the dial.