Search found 633 matches
- 31 Jan 2022, 17:04
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: phasers with transistors
- Replies: 19
- Views: 4162
Re: phasers with transistors
Correct... but in practice, both in the DIY community and broader electronics field, 99% of the time you hear "transistor" it refers to BJT, and it's generally safe to assume this is the case. JFETs are always called JFETs and MOSFETs are always called MOSFETs, even though the "T&quo...
- 30 Jan 2022, 13:29
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: phasers with transistors
- Replies: 19
- Views: 4162
Re: phasers with transistors
The original Bad Stone used JFETs, not transistors. :secret: Just an off-topic remark : JFETs are transistors, that's what the T means. It's not the first time i see people refer to only BJT as transistors, and it feels weird. BTW, in the Bad Stone the 4009 is used as a MOS transistor array, half o...
- 24 Jan 2022, 15:44
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Joyo - JF-13 AC Tone [schematic]
- Replies: 84
- Views: 149333
Re: Joyo - JF-13 AC Tone [schematic]
I know it is a pretty old topic, but I´ve been searching for this schematic for awhile and I did not found... So I took a pedal borrowed from a colleague and reverse enginneer it... Here is the full schematic of it... [...] Soon I will have the British and AC Tone also, so I can have the values for...
- 05 Oct 2021, 13:55
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Mooer - Micro Preamp Pedals
- Replies: 3
- Views: 1128
Re: Mooer - Micro Preamp Pedals
I did not expect those to be digital. Interesting.
- 25 Aug 2021, 18:21
- Forum: Parts & Tools Sourcing & Trading
- Topic: Half-way down latching PCB push switch?
- Replies: 7
- Views: 1407
Re: Half-way down latching PCB push switch?
This is a bad idea. Button should only exist in two possible stages: pressed or not. By no means there should be any mid-stages because it makes it difficult to interract with the button and it also would require you to implement additional indication to show in which stage the button currently is,...
- 14 Aug 2021, 16:03
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Ampeg - Phazzer [schematic]
- Replies: 27
- Views: 10555
Re: Ampeg - Phazzer [schematic]
BTW, what happens if we use entirely the inverters (lower Fet's) from a 4069 to make a six stage phaser ? It will work. I don't think the increased load of two more MOS gates capacitance would make a difference for the LFO. Had six stage phasers any advantage ? :hmmm: It will have three notches in ...
- 08 Aug 2021, 09:26
- Forum: Pimp-My-Cheap-Pedal
- Topic: Behringer FX100 (based over a coolaudio V1000)
- Replies: 11
- Views: 15869
Re: Behringer FX100 (based over a coolaudio V1000)
It should then be possible to use different effects from the V1000 with several Behringer digital pedals, like chorus, phaser or reverb [...] The quick and dirty way is to use the internal programs of the V1000, it requires lifting pin2 (internal mode when not connected to ground) and then choosing...
- 06 Aug 2021, 23:38
- Forum: Electric Guitar/Bass Wiring
- Topic: 5-sound Telecaster
- Replies: 19
- Views: 24544
Re: 5-sound Telecaster
Here is a working link for the original schematic : http://geolog.mydns.jp/www.geocities.jp/dgb_studio/3svari2_e.htm#35 3sw35.png With SW2 in the up position, you get a rather standard strat wiring. In the down position, the middle lug of the upper side of the selector is connected to PU1 : it gets ...
- 06 Jul 2021, 14:58
- Forum: Parts & Tools Sourcing & Trading
- Topic: Tap tempo chip for analog delay in the EU
- Replies: 3
- Views: 1613
- 10 May 2021, 07:38
- Forum: DIY Projects
- Topic: BAJA Ampeg SVT bass amplifier pedal 9v 010418 [documentation]
- Replies: 76
- Views: 246069
Re: BAJA Ampeg SVT bass amplifier pedal 9v 010418 [documentation]
You may also cut stripboard tracks lengthwise to make a quick & dirty SOIC adapter : https://ketturi.kapsi.fi/2013/12/uart-to-rs232-voltage-level-shifter/ http://www.beesnotincluded.com/2009/06/surface-mount-soldering-onto-stripboard.html https://aws1.discourse-cdn.com/arduino/original/4X/7/0/9/...
- 28 Apr 2021, 15:33
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Electro Harmonix Bass Big Muff [schematic]
- Replies: 15
- Views: 10103
- 14 Apr 2021, 18:36
- Forum: DIY Projects
- Topic: BIGGER MUFF [documentation]
- Replies: 31
- Views: 29567
Re: BIGGER MUFF [documentation]
Yes, for sure.
But for some reason i like the idea of misusing a digital device for analog dirt ...
(cf. my latest build)
But for some reason i like the idea of misusing a digital device for analog dirt ...
(cf. my latest build)
- 14 Apr 2021, 18:24
- Forum: DIY Projects
- Topic: BIGGER MUFF [documentation]
- Replies: 31
- Views: 29567
Re: BIGGER MUFF [documentation]
A bit off-topic, but for a single-chip BMP work-alike you may look at the 22/7 from RunoffGroove : http://www.runoffgroove.com/22-7.html
- 12 Apr 2021, 06:52
- Forum: Amplifiers
- Topic: Valveste 8080 copy EXPERIMENTAL tube gain stage mod
- Replies: 19
- Views: 5315
- 04 Apr 2021, 16:30
- Forum: Amplifiers
- Topic: Valveste 8080 copy EXPERIMENTAL tube gain stage mod
- Replies: 19
- Views: 5315
Re: Valveste 8080 copy EXPERIMENTAL tube gain stage mod
R69 should stay (it sets the reference voltage for the grid).
Disconnecting one leg of either R95 or C54 is sufficient to break the feedback loop, but beware of the high voltage on the side of R71.
Disconnecting one leg of either R95 or C54 is sufficient to break the feedback loop, but beware of the high voltage on the side of R71.
- 31 Mar 2021, 14:20
- Forum: Electric Guitar/Bass Wiring
- Topic: help identify symbol on toggle switch
- Replies: 3
- Views: 3181
Re: help identify symbol on toggle switch
It might be the manufacturer logo.
- 23 Mar 2021, 11:36
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Tech21 FlyRig5 v1 [gut shots]
- Replies: 3
- Views: 2122
Re: Tech21 FlyRig5 v1 [gut shots]
This is not uncommon for Tech21 products. They for sure optimise their components stock with that.
I also suspect both gooped modules to be similar, or even identical, to the one we reverse engineered in the Character Series thread.
I also suspect both gooped modules to be similar, or even identical, to the one we reverse engineered in the Character Series thread.
- 26 Feb 2021, 17:51
- Forum: Pimp-My-Cheap-Pedal
- Topic: Boss NF-1 to SG-1 conversion
- Replies: 31
- Views: 28984
Re: Boss NF-1 to SG-1 conversion
Pretty much.
You need to figure out how to set a slow attack in the side-chain, depending on the particular operating principle of your unit.
You need to figure out how to set a slow attack in the side-chain, depending on the particular operating principle of your unit.
- 31 Jan 2021, 17:30
- Forum: Boutique Stompboxes dissected...
- Topic: Way Huge - Red Llama 25th Anniversary with Hi Cut
- Replies: 12
- Views: 6549
- 28 Jan 2021, 22:07
- Forum: Amplifiers
- Topic: Valveste 8080 copy EXPERIMENTAL tube gain stage mod
- Replies: 19
- Views: 5315
Re: Valveste 8080 copy EXPERIMENTAL tube gain stage mod
The DC-coupled cathode follower is a bit more than that, and some say it's the key to the "Marshall Sound".
More info there : http://www.valvewizard.co.uk/dccf.html