关于
全部信用评价 (1,258)
-
industrialsino (62) - 买家留下的信用评价。超过 1 年购买已获认证Quick response and fast payment. Perfect! THANKS!!
-
ramelco (23065) - 买家留下的信用评价。超过 1 年购买已获认证Excellent buyer, Smooth transaction. Thanks.
-
juried_engineering_llc (7257) - 买家留下的信用评价。超过 1 年购买已获认证Great communication. A pleasure to do business with.
-
***** - 买家留下的信用评价。超过 1 年购买已获认证Prompt payment, valued customer, highly recommended.
-
boliverpete (3625) - 买家留下的信用评价。过去 1 个月购买已获认证Great communication. A pleasure to do business with.
-
mwshelgren (2848) - 买家留下的信用评价。过去 1 个月购买已获认证Good buyer, prompt payment, valued customer, highly recommended.
评价
(13)
2020 年 06 月 11 日
Good value, sharp, durable
I always have good luck with Qualtech end mills. Sharp, cut clean, and they last and stay sharp like a good HSS cutter should.
2019 年 06 月 26 日
Sturdy, not brittle, hinges hold well.
The plastic isn't brittle, and the hinges hold well. I tested some by opening them and twisting on the lid and body to see if the lid would just pop off or the hinge plastic would crack. It did not. I think they are a good choice for a slim jewel case.
2018 年 11 月 15 日
Excellent quality, easy to build, easy to adjust.
在 3 位用户中，有 3 位用户认为此评价有帮助
Very high quality parts and PC board. Very easy to assemble. The oscillator is nominally 1 kHz, if anyone is wondering. Adjusting the trimmer on the board will increase/decrease the amplitude of the wave, but also affects the frequency (the freq will vary between about 950 Hz and as high as 1450 Hz as you tweak that trimmer). If you need a very precise frequency, you would have to use a scope and tweak the trimmer. If you need more than a 1/2 volt amplitude, you will need an audio amplifier (if you want to hear the tone in a speaker, for example). The sine wave itself looks very good on a scope. I only assessed it visually, so i can't say how dead-accurate of a sine wave it is, but it looks very good.