[Available] Voltage Controled Timer PCBs

From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive!

Moderators: Kent, luketeaford, Joe.

User avatar
CLee
Super Deluxe Wiggler
Posts: 1833
Joined: Mon Apr 05, 2010 6:49 pm
Location: Chicago
Contact:

[Available] Voltage Controled Timer PCBs

Post by CLee » Sat Jan 11, 2014 7:03 pm

EDIT 10/5/16

See page 2 of this thread for some component changes that will extend the timing range. Longest setting for TRIGGER duration (without CV) will be 1min 40sec. Giving a range without adding CV of .35ms to 100 seconds in 3 ranges.

-----------------------------------------------------------

EDIT: It was pointed out to me that the post here and my web site don't have the same price for these. The boards are $15 each. If you've already paid, no worries though.

Boards are available

Boards are in.

Preliminary info can be downloaded here... my VC TIMER page

the info may change, I haven't double checked the BOM and the hookup diagram is out of date because it was for the prototype. I just want to get it up there so you can see what's involved.

PCBs are $15usd each. Shipping is $2 in the US/order and $8 international/ order. I need to raise international shipping, I have been charging less that it costs me now.

If you're interested you can contact me by PM or paypal to crash49 [AT] sbcglobal [DOT] net

If you paypal make sure your user name and address are included in the text of the email.

Thanks

-------------------------------------------------------------------

After a long break, I've finished my build of the VC TIMER module.

Info about the module can be found HERE

If there is enough interest in building these I can do a PCB run. Boards would be about $15USD depending on interest.

(I know I asked in early 2013 about a run, but it was a long time ago so I'm starting a new thread and asking again. Work on this was kind of derailed by some design challenges with other modules I'm working on.)

The module is basically a gate to trigger converter which I designed to send variable length triggers to LPGs. It also works as a GATE DELAY, a VCO, or an SR FLIP FLOP. TRIGGER length or GATE DELAY is voltage controlable. It's a bit of an odd-ball module, but I find it interesting...

Here is a quick video demo (made before adding FINE TUNE and 1V/OCT)
[video][/video]



ImageImage
Last edited by CLee on Wed Oct 05, 2016 8:09 pm, edited 5 times in total.

User avatar
windspirit
Super Deluxe Wiggler
Posts: 3117
Joined: Thu Sep 20, 2012 11:43 pm
Location: krellifornia

Post by windspirit » Sat Jan 11, 2014 7:43 pm

That looks awesome! Can we see/hear a demo?

User avatar
CLee
Super Deluxe Wiggler
Posts: 1833
Joined: Mon Apr 05, 2010 6:49 pm
Location: Chicago
Contact:

Post by CLee » Sat Jan 11, 2014 10:47 pm

windspirit wrote:That looks awesome! Can we see/hear a demo?
There's a quick one on my web site at the link above.

User avatar
sduck
experimental use of gravity
Posts: 14448
Joined: Wed Feb 18, 2009 6:03 pm
Location: Vortepexaion, TN, USA

Post by sduck » Sun Jan 12, 2014 12:42 am

Whats the range of the trigger length? Seconds? Minutes?

User avatar
CLee
Super Deluxe Wiggler
Posts: 1833
Joined: Mon Apr 05, 2010 6:49 pm
Location: Chicago
Contact:

Post by CLee » Sun Jan 12, 2014 1:02 am

Still testing with various transistors for the matched pair but the trigger length is variable from about 0.5ms to 30 seconds in 3 ranges

User avatar
Dego
Veteran Wiggler
Posts: 748
Joined: Thu Jan 29, 2009 9:22 am
Location: Sweden

Post by Dego » Sun Jan 12, 2014 9:32 am

One for me pls

User avatar
keninverse
Super Deluxe Wiggler
Posts: 1013
Joined: Mon Jul 26, 2010 4:12 pm
Location: mission control htx

Post by keninverse » Mon Jan 13, 2014 10:00 am

This is pretty cool and versatile. I'll take at least one, possibly two.

User avatar
recompas
Voice of Saturn
Posts: 178
Joined: Thu Jan 20, 2011 2:17 pm
Location: Charlottesville, VA
Contact:

Post by recompas » Mon Jan 13, 2014 1:02 pm

Super cool, I'd be interested in at least one pcb, probably 2! Your panel looks really nice as well.

User avatar
the bad producer
Super Deluxe Wiggler
Posts: 2624
Joined: Tue Mar 17, 2009 8:43 am
Location: Clapton Pond

Post by the bad producer » Mon Jan 13, 2014 2:25 pm

Great stuff, been waiting for this!

I'll be in for two please

User avatar
CLee
Super Deluxe Wiggler
Posts: 1833
Joined: Mon Apr 05, 2010 6:49 pm
Location: Chicago
Contact:

Post by CLee » Tue Jan 14, 2014 8:26 am

So I had a chance yesterday to measure the timings on my 2 builds. One uses an LM394 and the other a random grab of 2 BC547s.

These are the ranges for Trigger length (which would also be the Delay length)

NARROW - 0.1ms to 0.8 seconds
MEDIUM - 6ms to 1.6 seconds
WIDE - 10ms to 30 seconds

User avatar
monstrinho
Super Deluxe Wiggler
Posts: 1512
Joined: Thu Nov 17, 2011 1:08 pm
Location: mundo afora

Post by monstrinho » Tue Jan 14, 2014 9:14 am

Imagining lots of possibilities for this! I'd be interested in two boards.

User avatar
Paradigm X
Super Deluxe Wiggler
Posts: 2054
Joined: Tue Nov 02, 2010 5:43 am

Re: [IC] Voltage Controled Timer

Post by Paradigm X » Tue Jan 14, 2014 11:01 am

sounds great, 2 for me please!

Thanks

User avatar
CLee
Super Deluxe Wiggler
Posts: 1833
Joined: Mon Apr 05, 2010 6:49 pm
Location: Chicago
Contact:

Post by CLee » Sun Jan 19, 2014 3:45 pm

Between emails and posts there seems to be enough interest to order a batch of PCBs. Should have them in a little over a week.

User avatar
monstrinho
Super Deluxe Wiggler
Posts: 1512
Joined: Thu Nov 17, 2011 1:08 pm
Location: mundo afora

Post by monstrinho » Mon Jan 20, 2014 12:38 am

CLee wrote:Between emails and posts there seems to be enough interest to order a batch of PCBs. Should have them in a little over a week.

:goo: :goo: :goo:

:yay: :yay: :yay:

excellent news!!

User avatar
lintfresh
Veteran Wiggler
Posts: 529
Joined: Thu Aug 29, 2013 12:45 pm
Location: Seattle

Post by lintfresh » Mon Jan 20, 2014 12:56 am

Very useful. I'm in for 1!

User avatar
CLee
Super Deluxe Wiggler
Posts: 1833
Joined: Mon Apr 05, 2010 6:49 pm
Location: Chicago
Contact:

Post by CLee » Wed Jan 29, 2014 8:58 pm

I've updated the OP to include this info but... boards are available for those interested,

Boards are available

Boards are in.

Preliminary info can be downloaded here... my VC TIMER page

the info may change, I haven't double checked the BOM and the hookup diagram is out of date because it was for the prototype. I just want to get it up there so you can see what's involved.

PCBs are $15usd each. Shipping is $2 in the US/order and $8 international/ order. I need to raise international shipping, I have been charging less that it costs me now.

If you're interested you can contact me by PM or paypal to crash49 [AT] sbcglobal [DOT] net

If you paypal make sure your user name and address are included in the text of the email.

Craig

User avatar
CJ Miller
Super Deluxe Wiggler
Posts: 4256
Joined: Thu Apr 28, 2011 3:10 pm
Location: Mumfordshire

Post by CJ Miller » Tue Feb 04, 2014 11:55 pm

I don't have any money to buy these now, but since I have been busy with panel graphics, I did some for this circuit. I had been meaning to do this for months so I could wire up the prototype. These are mid and late era Serge style, I'll probably do a 3" wide early version also now that I've gotten a few obstacles out of the way.

ImageImage

User avatar
CLee
Super Deluxe Wiggler
Posts: 1833
Joined: Mon Apr 05, 2010 6:49 pm
Location: Chicago
Contact:

Post by CLee » Wed Feb 05, 2014 7:53 am

Nice CJ, I like them.

A few points...

There are drivers for only 2 LEDs on the board. If you want 4 you'll have to build a small driver PCB, maybe use Kens. My reason for the switch was that depending on what you're using the module for, Trigger/Delay or LFO, either one set or the other of outputs would be what you want to monitor. Also, I'm personally not a blinkin' lights fan, I use a center off switch for my LEDs so I can turn them off when I don't need them.

The RANGE switch is now 3 position (center off). Up is narrow, down is medium range and center off is wide.

The pot connected to the VC RATE input is an Attenuverter. You need that function so you can decide if increasing CV would make for longer pulses and longer delays, which would be lower frequencies as a VCO. Or increasing CV makes higher frequencies, which would be shorter pulses and shorter delays.

Then as one last nit-pick, it looks like the FINE pot is controlling the 1v/oct input on the 80's layout. There is a line connecting them.

User avatar
Paradigm X
Super Deluxe Wiggler
Posts: 2054
Joined: Tue Nov 02, 2010 5:43 am

Post by Paradigm X » Tue Mar 04, 2014 7:44 am

Aggh, nearly forgot about this, just paid for two pcbs please!

Cheers
Ben

User avatar
CLee
Super Deluxe Wiggler
Posts: 1833
Joined: Mon Apr 05, 2010 6:49 pm
Location: Chicago
Contact:

Post by CLee » Tue Mar 04, 2014 8:37 am

:tu:

User avatar
Paradigm X
Super Deluxe Wiggler
Posts: 2054
Joined: Tue Nov 02, 2010 5:43 am

Post by Paradigm X » Tue Mar 04, 2014 8:59 am

Phew!

thanks man!

:yay: :tu:

User avatar
lintfresh
Veteran Wiggler
Posts: 529
Joined: Thu Aug 29, 2013 12:45 pm
Location: Seattle

Post by lintfresh » Tue Oct 07, 2014 1:21 am

Hey Craig, will these boards work on 15v without changes?

User avatar
CLee
Super Deluxe Wiggler
Posts: 1833
Joined: Mon Apr 05, 2010 6:49 pm
Location: Chicago
Contact:

Post by CLee » Tue Oct 07, 2014 6:56 am

They should work with no changes, though I never tested them at 15v.

You could change resistors R17 and R27 from 22K to 16K. That will keep the voltage dividers at the same level.

Craig

User avatar
lintfresh
Veteran Wiggler
Posts: 529
Joined: Thu Aug 29, 2013 12:45 pm
Location: Seattle

Post by lintfresh » Thu Oct 09, 2014 11:25 pm

Thank you!

User avatar
batchas
Super Deluxe Wiggler
Posts: 5103
Joined: Wed Nov 09, 2011 2:51 pm

Post by batchas » Thu Oct 16, 2014 11:43 am

Paid for 1 x board the 10th of Oct.
Thanx :tu:

And already received it :sb:

Post Reply

Return to “Music Tech DIY”