Vtl5c9
- Thread starter Diynot
- Start date
dawson
Well-known member
Wise decision on the Wavelord- unfortunately, I believe mine came from SmallBear while they were heading toward final hibernation.
Are you in the USA? I'll keep an eye out and let you know. I also wouldn't be surprised if somebody else finds one for you to buy in the next 30 minutes- folks can be good like that around here.
fig
Village Idiot
I have you one. I'll have to locate it. 
A few months back I ordered a bunch of vactrols from various makers, as well as a decent sampling of the PerkinElmer brand, which seem popular in pedal designs. My goal was to learn all I could about them, what specific characteristics and specs are important, run some comparisons, measure & chart results....and of course build some groovy pedals. I've done some study, but hit/miss between life, building pedals, and running my fingers through the forum.
Here's the PerkinElmer spec-sheet in case there is an interest.
A few months back I ordered a bunch of vactrols from various makers, as well as a decent sampling of the PerkinElmer brand, which seem popular in pedal designs. My goal was to learn all I could about them, what specific characteristics and specs are important, run some comparisons, measure & chart results....and of course build some groovy pedals. I've done some study, but hit/miss between life, building pedals, and running my fingers through the forum.
Here's the PerkinElmer spec-sheet in case there is an interest.
@fig It is pretty interesting the variance in properties of each vactrol, all dependent on the LDR construction and LED wavelength. I need to do a little deep dive on how an LDR is constructed and what factors determine said characteristics. Purely educational, but nothing wrong with that. I did consider grabbing some vactrols on my last SB order, but alas, I did not have a particular project in mind so I decided against it. Excited for this one though and glad Dawson brought it to my attention. Waveforms make me giddy
Meh, you’ve been doing good things for other people, no shame in putting it on the back burner for a bit.I bought mine at smallbear like @dawson when the project first released. I just need to quit bullshitting I build it.
so looking at the spec sheet above, doing a little research, and a little math, is it possible to sub a 5c1, which has the closest specs with the exception of a broader slope and faster response time, for the 5c9 IF you were to change r24 to 500ohm so that the input current is then 10mA, or am I butchering any and all math/EE norms?
Last edited:
Feral Feline
Well-known member
I've no idea, but eager to learn.
fig
Village Idiot
It's a great question...I just don't have the answer. 
I do know the specs of those 2 seem very close. I'm just beginning my edumcation on these kajiggers, but have pestered @Chuck D. Bones sufficiently to attempt a translation from electronic-speak to monkey-sounds, that I might grasp enough to achieve some meaningful results. I am forever grateful and open to guidance or correction. Oh, and I do like me some nana.
I do know the specs of those 2 seem very close. I'm just beginning my edumcation on these kajiggers, but have pestered @Chuck D. Bones sufficiently to attempt a translation from electronic-speak to monkey-sounds, that I might grasp enough to achieve some meaningful results. I am forever grateful and open to guidance or correction. Oh, and I do like me some nana.
It's a great question...I just don't have the answer.
I do know the specs of those 2 seem very close. I'm just beginning my edumcation on these kajiggers, but have pestered @Chuck D. Bones sufficiently to attempt a translation from electronic-speak to monkey-sounds, that I might grasp enough to achieve some meaningful results. I am forever grateful and open to guidance or correction. Oh, and I do like me some nana.
I feel ya
Harry Klippton
Not Interested
fig
Village Idiot
Well, they are supposed to be where the light don't shine
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