[sdiy] THAT 2155 on sale

[Kenny Balys]

Some of them were simply nonfunctional and others appeared to
common transistors sanded and painted to look like old
Roland transistors. I sourced them off of ebay from a vendor
that had thousands of things for sale.

They were super quiet, just made a teensy little plink sound
as they hit the rubbish bin :)

As is usual at my studio, I have a project backlog so these parts
sat for 2 months until I got to them so no refund.

Also, from China I received fake NOS Rockwell 6502 CPU's. What was I thinking?
Of course they were fake, these were never shipped to China in the
first place.

China produces fake components on an industrial scale.
There are plenty of articles and discussions out there on
this topic from reputable sources.

The highest risk would appear to be in sourcing NOS 'cool stuff'.
2n3904/6's and 1n4001's always seem to be good.


On 19.04.20 20:23 , Gordonjcp wrote:
> On Sun, Apr 19, 2020 at 12:29:24PM -0700, David G Dixon wrote:
>> I guess I've been lucky -- I've done tons and tons of DIY for 12 years, and
>> the only "fake" chips I ever bought were a bad batch of LF444 quad opamps.
>>
>
> How did you know they were bad?
>
> Were they quiet, with lots of gain and acceptable slew rate?
>