Josh -
The TIL311's were from "adeleparts2010" (china) on ebay.
The Z80's were from allpartspipe2008 (china) also on ebay. Hard to
believe there is any profit in counterfeiting a part that sells for $4
including shipping!
On 6/29/2014 12:04 AM, Crusty OMO wrote:
Gary,
Where did you get those TIL311's from? A local surplus store here has
put a bunch of them on ebay that match this description. If you did
buy these from Active Surplus, I know the store manager there and I'll
do what I can to help.
Cheers,
Josh Bensadon
------------------------------------------------------------------------
Date: Sat, 28 Jun 2014 23:49:00 -0400
From: [email protected]
To: [email protected]
Subject: Re: [N8VEM-S100:4412] v20-16, z80-20 and chip counterfeits
Curt -
I purchased two Z84C0020PEC's that were also questionable. One was
dead, one runs ok at 8mhz (I haven't tried faster clock speeds yet).
They had identical top printing and date codes, but the molding marks
on the bottom were different. The dead chip was replaced without
question with one that also works fine at 8mhz.
Also a recent batch of TIL311's were used pulls (advertised as new)
and 3/10 were dead in whole or part. They had shortened tinned leads
and obvious signs of removal.
I could write pages about counterfeit capacitors - my primary hobby is
vacuum tube audio gear. My experience is that 100% of Chinese
capacitors are faked.
If Mouser or Digikey carries the parts it's worth the extra cost!
- Gary
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