Search found 183 matches

by Zokk
14 Jun 2019, 07:22
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Systech - Harmonic Energizer [schematic]
Replies: 177
Views: 88568

Re: Systech - Harmonic Energizer [schematic]

Hello as the Frequency pot is wired as a variable resistor you could use a vactrol/LDR in parallel + a limit resistor (to limit the max resistance of the vactrol/LDR). Then with a TRS jack and a zener diode you send some voltage to your expression pedal (Ring), and the return (Tip) will go to a simp...
by Zokk
25 Jan 2019, 08:30
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Klemt Echolette M100 tube amp
Replies: 18
Views: 3404

Re: Klemt Echolette M100 tube amp

You can find several DI boxes which allow direct plug in the poweramp output, such as this one for example: http://www.radialeng.com/product/jdx-48 The Powersoak is an old power dissipator, simple resistor network, I still use it occasionaly to record straight from a Bassman head without speakers to...
by Zokk
24 Jan 2019, 21:18
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Klemt Echolette M100 tube amp
Replies: 18
Views: 3404

Re: Klemt Echolette M100 tube amp

If i wanted to use the main outputs (speakers), what kind of device should i use it with, to insert between the M100 and a mixer desk ? Something like a impedance matcher, does it exist for such a use ? Like a DI box, but to insert between a power amp and a mixer desk... A good old powersoak lets y...
by Zokk
23 Jan 2019, 20:28
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Klemt Echolette M100 tube amp
Replies: 18
Views: 3404

Re: Klemt Echolette M100 tube amp

Hi it seem the front DIN has an output for the mixer section, but could be used as insert (send return). If I am right you could have your mixer output at a reasonable level, on pin 4, but the signal will still be hot for your amp input (11mV). The other output on the back is a tape recorder connect...
by Zokk
28 Oct 2018, 11:42
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Half Gain Switch on SuperFuzz
Replies: 3
Views: 2188

Re: Half Gain Switch on SuperFuzz

Hi welcome here :thumbsup I'd say the simple way to reduce gain on the first stage is to put a second input resistor (say 100K for example) and switch between them. To me it is really useful when the fuzz is used with high gain pickups, they sound best with their input level attenuated with a 100K/1...
by Zokk
14 Oct 2018, 19:15
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Why any drive in front of Sansamp sound awful?
Replies: 5
Views: 1328

Re: Why any drive in front of Sansamp sound awful?

That's a good question.
Look if you target a large market, you'll need tons of gear, lots of amps, guitars, to test your design with many setups to satisfy more customers.
If you want to build some pedals for fun and your friends you may only need a good amp and a good guitar.
by Zokk
14 Oct 2018, 16:33
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Why any drive in front of Sansamp sound awful?
Replies: 5
Views: 1328

Re: Why any drive in front of Sansamp sound awful?

I use an old Sansamp, their early model.
It has enough tweaks to tailor your sound as you want, but yes it adds always its own color.
But I can't speak about the GT-2.
by Zokk
14 Oct 2018, 16:01
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Why any drive in front of Sansamp sound awful?
Replies: 5
Views: 1328

Re: Why any drive in front of Sansamp sound awful?

Hi I don't share your experience, I've used the sansamp for a long time placed at the end of the pedal/FX chain, just before my amp. That sounded nice to me 8) It's buffer is also very nice on itself, it sounds very good placed before most of fuzzes when used with a weak single coil guitar, adds som...
by Zokk
01 Oct 2018, 08:03
Forum: DIY Stompbox designs
Topic: Electric Druid Tap Tempo LFO Code
Replies: 6
Views: 2763

Re: Electric Druid Tap Tempo LFO Code

Hello thank you for your explanations and all this amazing work. It appears that I had few bad jumpers on my test circuit at that time, so I didn't have the right signal on the two LFOs output circuits, but that's my fault :oops: Waveform sets are perfect, and sync tricks are easy to implement with ...
by Zokk
27 Sep 2018, 08:20
Forum: DIY Stompbox designs
Topic: KiCAD : Design schematics and PCBs for FREE?
Replies: 4
Views: 2289

Re: KiCAD : Design schematics and PCBs for FREE?

Hi

unless you have a real business in electronics and you can afford expensive software licences, kicad is the way to go.
There's a huge community support and that last version is way better than the older I used to work with.
by Zokk
17 Sep 2018, 15:54
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Fuses as clippers?
Replies: 6
Views: 1817

Re: Fuses as clippers?

It's probably more efficient to use fuses as jumpers 8)
by Zokk
27 Jun 2018, 07:33
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Top Gear - Sound Rotator
Replies: 17
Views: 7275

Re: Top Gear - Sound Rotator

Professor SourTone wrote: I will have a go - what’s the recommended way nowadays, photobucket is hopeless now.
Thanks, you can upload the pictures directly on the forum, check the tab below when you write a message :"upload attachment".
by Zokk
26 Jun 2018, 07:43
Forum: Vintage Stompbox Corner ( ... - 1975)
Topic: Top Gear - Sound Rotator
Replies: 17
Views: 7275

Re: Top Gear - Sound Rotator

Hi, please could you post the pictures on another media: both links don't work for me.
Thanks.
by Zokk
09 Jun 2018, 09:28
Forum: Pedal Debugging & Troubleshooting Support
Topic: Tri-vibe popping noise on bypass switch
Replies: 8
Views: 331

Re: Tri-vibe popping noise on bypass switch

The pop can occur for several reasons, not only because the indicator LED sucks too much current when engaged. For example in your circuit you can check for a DC leak at the output, it's a quite comme source of huge pops too. The ground wiring is also very important, sometimes a bad ground point or ...
by Zokk
06 Jun 2018, 11:47
Forum: Pedal Debugging & Troubleshooting Support
Topic: Tri-vibe popping noise on bypass switch
Replies: 8
Views: 331

Re: Tri-vibe popping noise on bypass switch

Hi it is sometimes too difficult to solve this pop while still trying to use a classic 3PDT "true bypass" wiring. I'd suggest this kind of bypass, few parts, and pop-free guarantee: http://1776effects.com/wp-content/uploads/2015/03/Opto-Tron-BOM.pdf Another great bypass option is the Millenium Bypas...
by Zokk
01 Jun 2018, 22:26
Forum: DIY Stompbox designs
Topic: Electric Druid Tap Tempo LFO Code
Replies: 6
Views: 2763

Re: Electric Druid Tap Tempo LFO Code

I've played a bit with the TapTempoLFO on a phaser project. That's really annoying to not be able to alter the offset. This is an important feature, and it's just missing. Instead the Invert CV is a gadget, it will just remove an inverting stage from a CV mixer. The best would be to remove the "inve...
by Zokk
27 May 2018, 10:03
Forum: DIY Stompbox designs
Topic: Electric Druid Tap Tempo LFO Code
Replies: 6
Views: 2763

Re: Electric Druid Tap Tempo LFO Code

Hi
you'll find the code on the electricdruid website :wink:
https://electricdruid.net/electric-drui ... eneration/
by Zokk
25 May 2018, 08:02
Forum: DIY Stompbox designs
Topic: True Bypass with NE555 Flip-Flop
Replies: 7
Views: 4880

Re: True Bypass with NE555 Flip-Flop

Hi

could you improve the current consumption if you change the NE555 to its CMOS equivalent for example a TS555?
In many applications, the CMOS version will perform the same way but with much less current consumption.
by Zokk
04 Apr 2018, 19:27
Forum: DIY Stompbox designs
Topic: modular guitar pedals idea - work in progress...
Replies: 15
Views: 5192

Re: modular guitar pedals idea - work in progress...

Congrats!
Crazy CVDelay!

What is your power supply? Did you choose the euro format too?
by Zokk
04 Mar 2018, 13:17
Forum: DIY Stompbox designs
Topic: modular guitar pedals idea - work in progress...
Replies: 15
Views: 5192

Re: modular guitar pedals idea - work in progress...

Hi that's very nice! What about adding a VCF (with VC resonance), a sample and hold/noise/clock generator, a real ADSR (with bipolar outputs) and a ring modulator (to process CV or Audio)? You may need some multiples and attenuverters if you play a lot with CV routing, and you may need an AC-DC opti...