[sdiy] ...that 1K resistor on the output

[Harry Bissell]

are you counting on the leakage of the zeners?

I'd leave the resistor. You shouldn't count on leakage, no telling
how much it will be, surely less than any reasonable resistor (like 10M or less...)

H^) harry



----- Original Message -----
From: David G. Dixon <dixon at interchange.ubc.ca>
To: 'Justin Owen' <juzowen at googlemail.com>
Cc: 'SDIY List' <synth-diy at dropmix.xs4all.nl>
Sent: Thu, 27 Jan 2011 13:51:44 -0500 (EST)
Subject: Re: [sdiy] ...that 1K resistor on the output

> If I'm using Zener/clipping diodes on Inputs/Outputs - i.e. Anode to Anode
> in anti-parallel with Cathode to Ground (what a mouthfull?!) - is adding
> the bleed resistor to Ground - which would put it in parallel with the two
> clipping diodes - still going to let both the resistor and the diodes do
> their jobs?

It's actually "anti-series".  Regular diodes would be "anti-parallel".

Anyway, the bleed resistor is there to drain off DC which has no other
escape route.  I should think that the zeners would accomplish this just as
well.  HICBW*

*HICBW = "however I could be wrong"

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-- 
Harry Bissell & Nora Abdullah 4eva