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In Reply to: RE: When you get "Serious" about building SE amplifiers you get ones of these posted by used-hifi on February 09, 2017 at 19:30:45
For a hobby Chinese products are a real budget savers.
You can find on this device here:
Additionally, there are positive feedback posts on Russian DIY forums.
PS. I'm dealing quite a lot with Chinese parts, hardware and machinery. While they may cost much less then comparable from USA, EU or Japan manufacturers, these cost savings often come with questionable precision, awkward workarounds and hackwork, buggy software. Not always, but quite often.
For example, I have Atten oscilloscope with large screen which was great for its cost (at least on paper) and comparable to Agilent at one third of the price.
It arrived in time and it works. However:
1) It's input amplifier have poor signal/noise ratio compared to Pro counterparts. Still OK because I have relatively high signal levels.
2) Software is buggy, when one try to write readings on USB memory stick, it may do so, and may not, only god knows why. Manufacturer agreed to reflash software free o charge, but request to send oscilloscope back to China, for shipping and customs at my expense both ways. It doesn't make any sense, however.
I totally agree you really need to know what your getting yourself into
2 china products that are very good one is this digital LCR and another is this signal generator http://www.ebay.com/itm/221508521898?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
has a very good square wave Rise and fall time of ≤100ns perfect for amplifier testing without adding rc filter to slow it down and music is much slower then 100ns but its a good test plus this unit has real good bandwidth for audio testing/sweeping. IMO EXCELLENT
Did you mean to post a link to a digital LCR?
Look for XJW01 LCR meter on Amazon, eBay and Aliexpress. This model seems to be discontinued.
On Aliexpress they are available at around $100 but assembly is UNFINISHED, as stated in listings. I don't know what is missing.
This LCR was a "KIT" the main board was stuffed and soldered but you have to put it all together and make some cabling
Yes there maybe a new model that will/can test at 100kc but for what we do this unit is works fine. IMO every experimenter should have one just for matching R's L's C's plus so much more
Serious SET hobbyist needs LCR meter that can measure inductance of the OPT at variable frequency from 20Hz-20KHz. Any LCR meter that is fixed to measure at 100Hz/1KHz/10KHz; etc. points are not very useful IMO.
Also, variable Voltage signal of about 20Vrms and selectable Vsource of 30/ 50 /600 /1K ohms.
.Thou shall not stand where I type for I carry a bottle of Certified Audiophile Air and a Pure Silver Whip.
> Serious SET hobbyist needs LCR meter that can measure variable inductance from 20Hz-20KHz.
Certainly exists yet too expensive for hobby use.
Generator, resistor and true RMS voltmeter is enough for this purpose.The rest is simple calc job.
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