[sdiy] XR2206 synth ideas?

[Tim Parkhurst]

Yeah, I have a couple of XR VCOs that work great on 15V, but then I
ran into a BUNCH of 2206 chips that would put out nothing but RF hash
until you got the supply below 12V. Usually around 10 to 11V was good.
It might have to do with the way the chip sinks or sources current
(wild guess). I finally found some at Tayda that worked on 15V, but I
don't trust any 2206 chips these days until I actually test them.

Tim (I don't believe in being too skeptical... or maybe I do) Servo
---
"Sire, the church of God is an anvil that has worn out many hammers."
- H.L. Hastings




On Thu, Sep 19, 2013 at 4:37 AM, J. Verhoeven <jarno.verhoeven at ziggo.nl> wrote:
> That's interesting, my two vco's work without a hitch, but there is a guy on experimentalists anonymous who also described some "interesting" behaviour on +/-15v.
> Didn't know there's notable variability in these semis (despite all the process control you need to produce acceptable yield for these buggers).
>
> Jarno.
>
>
>
> On 09/19/13, Tim Parkhurst <tim.parkhurst at gmail.com> wrote:
>> Hey, that's kinda neat. I have some 'substandard' 2206 chips that
>> don't want to perform at +15V, but they do okay at about 11V. This
>> might be a fun use for them.
>>
>>
>> Tim (I need a little cheepness) Servo
>> ---
>> "Sire, the church of God is an anvil that has worn out many hammers."
>> - H.L. Hastings
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