Korg diode

[Martin Czech]

Since the 1N914 or 1N4148 (they are pretty much the same, right?, this
is from my head, could be wrong type number) are gold doped for fast
recombination, they should show muc more leakage then a low leakage diode
(like jfet junction), but of course you pay for this (slow).


m.c.


:::Date: Mon, 23 Oct 2000 10:10:03 -0500
:::Subject: Re: Korg diode
:::From: "Grant Richter" <grichter at execpc.com>
:::To: Haible Juergen <Juergen.Haible at nbgm.siemens.de>, Bjorn Julin 
<bnillson at hotmail.com>, oldcrow at oldcrows.net
:::CC: synth-diy at node12b53.a2000.nl
:::Content-transfer-encoding: 7bit
:::
:::I measured the reverse leakage of 10 x 1N914 diodes at room temperature. All
:::have leakage's under 10 nano-amperes at 15 volts. That will probably vary by
:::batch.
:::
:::
:::----------
:::>From: Haible Juergen <Juergen.Haible at nbgm.siemens.de>
:::>To: Bjorn Julin <bnillson at hotmail.com>, oldcrow at oldcrows.net
:::>Cc: synth-diy at node12b53.a2000.nl
:::>Subject: RE: Korg diode
:::>Date: Mon, Oct 23, 2000, 6:48 AM
:::>
:::
:::>  >I my suspisousness about using the 1n4148 is werifyed
:::>  >and i believe that your 1n914 has the same problem!
:::>  >They both leeaks to much. Affects tuning at low notes!
:::>
:::> In which way would that be exactly ?
:::> I only had problems with 1n4148 diodes when I tried to
:::> use them for *huge* sweep range VCOs, like a
:::> several-minutes-LFO to high audio range VCO.
:::> No problem in Korg audio range VCOs so far.
:::> (But I'm aware that the diodes I've used might be
:::> much better than worst case specs, of course.)
:::>
:::> JH.
:::>