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Topics - Scruffie

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1
Open Discussion / April Fooled
« on: April 01, 2019, 01:00:20 PM »

2
Open Discussion / EHX Attack Decay
« on: January 22, 2019, 03:06:21 PM »


Took them long enough, doesn't seem like it's really going to be much the same as the original though.

4
Open Discussion / A small favour for a friend of mine.
« on: August 18, 2018, 08:40:46 AM »
A friend has asked if I can help her put a collage together for her wife, if you'd be willing to help out a lovely couple, could you please take a photo of a message with "She loves you, even in (country, town)" with the date (21.03.13) as in the photo attached.

Take it at your gig, outside your window, at a local spot or monument.

If you'd be willing to take a minute to help a stranger show their love it would be greatly appreciated  :)

5
Open Discussion / DIYStompboxes - Insecure Connection
« on: June 26, 2018, 03:53:13 AM »
Is anyone else using Firefox getting an 'Your connection is insecure' error page when trying to visit DIYStompboxes? Opera doesn't seem to like its certificate either.

6
Open Discussion / Donut?
« on: February 08, 2018, 01:44:46 PM »
Mmm... Doughnut.

7
Open Discussion / Today's Repair.
« on: February 06, 2017, 03:32:58 PM »
I just had to show off because I finally got my hands on one of these, an A/DA Harmony Synthesizer, god damn is this a crazy circuit.


9
Open Discussion / EHX releases the Mel 9
« on: March 14, 2016, 08:30:06 AM »
I've been waiting for this to come... not listened to the demo yet but i'm fairly sure I need it.

http://www.ehx.com/products/mel9


10
Using firefox, just started yesterday, not sure if it's happened because of the latest browser update or something to do with the site itself.

11
Tech Help - Projects Page / Some Basic Debugging Voltages
« on: February 18, 2015, 12:47:27 PM »
I figured this might save some time, some basic voltages to expect for debugging, all readings are approximate, use your judgement. They may not apply to everything, but in a pinch they might just help solve your issue.

This all applies to positive voltage effects!

If you have a circuit with standard ground, V.Ref and 9/12/15/18V supply, any audio path dual opamps you can usually expect to see;
1 - 1/2 Supply
2 - 1/2 Supply
3 - 1/2 Supply (Sometimes this may show lower)
4 - 0V
5 - 1/2 Supply (Sometimes this may show lower)
6 - 1/2 Supply
7 - 1/2 Supply
8 - Voltage Supply

If the pedal uses a charge pump to achieve +/-9V or Split Supply, the audio path opamps should read;
1 - 0V
2 - 0V
3 - 0V
4 - -9V
5 - 0V
6 - 0V
7 - 0V
8 - +9V

In effects with modulation, if you have a dual opamp LFO at 9/12/15/18V (this will have a rate control connected to it) you should expect to see;
1 - Varying Voltage
2 - N/A
3 - N/A
4 - 0V
5 - N/A
6 - N/A
7 - Varying Voltage
8 - Supply voltage
The varying voltages here indicate that your LFO is running, the N/A pins will vary, the main thing is there is moving voltage.

8 Pin BBDs (3007 etc.)
1 - Supply Voltage
2 - 1/2 Supply
3 - This will be changed by the bias pot, start at 1/2 Supply and adjust until the effect passes.
4 - Between 0 - 1V
5 - 0 V
6 - 1/2 Supply
7 - Just above (approx 1V) pin 3s voltage
8 - Just above (approx 1V) pin 3s voltage

8 Pin BBDs (3207, 3208 etc) you should see
1 - 0V
2 - 1/2 Supply
3 - This will be changed by the bias pot, start at 1/2 Supply and adjust until the effect passes.
4 - Supply or up to 1V below
5 - Supply Voltage
6 - 1/2 Supply
7 - Approx half supply (varies with pin 3)
8 - Approx half supply (varies with pin 3)

14-Pin Package BBDs (3005, 3008)
1 - Supply Voltage
2 - 1/2 Supply
3 - Just above (approx 1V) pin 7s voltage
4 - Just above (approx 1V) pin 7s voltage
5 - 0V
6 - 1/2 Supply
7 - This will be changed by the bias pot, start at 1/2 Supply and adjust until the effect passes.
8 - Between 0 - 1V

14-Pin Package BBDs (3205, 3208)
1 - 0V
2 - 1/2 Supply
3 - Approx half supply (varies with pin 7)
4 - Approx half supply (varies with pin 7)
5 - Supply
6 - 1/2 Supply
7 - This will be changed by the bias pot, start at 1/2 Supply and adjust until the effect passes.
8 - Supply or up to 1V below

12
Open Discussion / v3205 finally back in stock at Smallbear
« on: January 14, 2015, 03:15:36 AM »
And they look a little different, I know Steve wasn't purchasing them from CoolAudio again until they fixed the issues with high biasing points and excess distortion so I wonder if this new batch (which Steve has QA tested) are an improvement over what we've seen before.

13
Open Discussion / B9, C9 what next, D9?
« on: December 02, 2014, 12:49:12 PM »

14
Open Discussion / Saw this over at ILF - Paypal
« on: October 11, 2014, 08:51:01 AM »
Apparently Paypal are extending the time buyers can make disputes from 45 days to 180 days, don't think i'll be selling anything to anyone I don't know from now on...

15
Open Discussion / The future of BBDs
« on: July 17, 2014, 05:24:04 PM »
Been away for a week, but this could be big news http://www.bossus.com/gear/productdetails.php?ProductId=1330

Companies like BOSS make continued production much more likely.

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