[sdiy] Best Way to limit control voltage

Peter Grenader peter at buzzclick-music.com
Fri Apr 8 08:19:11 CEST 2005


When I found them, they were right to the LEFT of the front door when you're
standing at the doorway looking out to San Fernando Blvd.  Hope that's
clear.  So, when you're inside the place looking out, shift your eys to the
left and bang - you'll see the cabinets -  tons of little metal drawers,
like the ones they have under the cash register area.  I saw them there.
This was well over a year ago though.

- P

 larry at unicode.com wrote:

> Peter
> 
> Where in the store were they (the metal can 3080's) located?
> 
> FYI for anyone that wants to find the place:
> Apex
> 8909 San Fernando Road
> Sun Valley,  CA   91352
> USA
> (818) 767-7202
> (323) 875-1308
> ApexSurplus at aol.com
> 
> It was mentioned that you would not want to be in the outside yard during an
> earthquake.  Whoever said that did not look around inside!  At least outside
> you'd have a chance!
> 
> Larry T.
> 
> 
> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl
> [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Peter Grenader
> Sent: Monday, March 14, 2005 7:06 PM
> To: synth diy
> Subject: Re: [sdiy] Best Way to limit control voltage
> 
> 
> Apex Electronics has a ton of metal 3080's...at least they did about six
> months ago.
> 
> -P
> 
> Kevin Lightner wrote:
> 
> 
> Why using Zener diodes when normal diodes should do the work?
> Check Grant's last Scheme:
> http://www.musicsynthesizer.com/DIY/Grant/OTA.html
> 
> 
> These diode are indeed clamping the output, but a zener will not conduct
> until it reaches it's rated voltage. 3080s are also pickier in usage (and
> pricier) than opamps usually.
>> From what I can see, this above will rectify everything. With a zener, you
> could pass an undisturbed sinewave, with only the peaks being limited past
> the zener voltage.
> Someone correct me if I'm wrong though. I'm no engineer.
> More of a "if it works and doesn't draw too much current, it's probably ok"
> school ;-)
> 
> Btw, I recently picked up a bunch of NOS TO-5 (metal can) CA3080H OTA's.
> If anyone needs some in this round style package, drop me a private email.
> :)
> 




More information about the Synth-diy mailing list