Hmmm... maybe the led illuminates a double LDR which is symbolized by 4 dots inside a circle (in the left lower corner - in parallel to R19, R20) ?Nocentelli wrote:Schematic appears to omit the actual filter section I can't see how the envelope controls the filter sweep
Search found 276 matches
- 18 Jan 2018, 01:03
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Shin-ei Mute Box [schematic]
- Replies: 4
- Views: 4086
Re: Shin-ei Mute Box [schematic]
- 02 Jan 2018, 01:43
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Shiino Vesta Fire Compressor (with schematic)
- Replies: 6
- Views: 3029
Re: Shiino Vesta Fire Compressor (with schematic)
R19-D5 form a voltage reference of 0,65V R20-C11 acts as a noise-filter for the voltage reference even when the main purpose of R20 is for the release time. Attack is determined by R18+C11 D4 is there to reduce the voltage reference to zero without a (sufficient) signal. Purpose of this arrangement ...
- 10 May 2017, 03:26
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Carvin T01 Overdrive
- Replies: 5
- Views: 3032
Re: Carvin T01 Overdrive
How cool:
"Carvin - a company which can build a Boss SD-1 clone with all its drawbacks."
"Carvin - a company which can build a Boss SD-1 clone with all its drawbacks."
- 23 Mar 2017, 11:51
- Forum: Boutique Stompboxes dissected...
- Topic: Dunlop - JHF3 Band of Gypsys Fuzz Face [traced]
- Replies: 26
- Views: 17527
Re: Dunlop - JHF3 Band of Gypsys Fuzz Face [traced]
R13 = 10kThiagoFaraday wrote:R13 120E
- 27 Feb 2017, 00:41
- Forum: Boutique Stompboxes dissected...
- Topic: Thomas Reußenzehn - Tube Stompbox [traced]
- Replies: 6
- Views: 3152
Re: German tube stompbox schematic [traced]
I don't know why, but I have the feeling that I am missing a (680 ohm ?) resistor at the cathode of the first stage....
BTW, I didn't know, that this guy is still alive & active.
BTW, I didn't know, that this guy is still alive & active.
- 22 Feb 2017, 09:06
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: DOD - 505A Harmonic Enhancer [schematic]
- Replies: 6
- Views: 4479
Re: DOD 505A HARMONIC ENHANCER [schematic]
Now you only need the schematic of the Dod FX87 Psycho Acousic Processor (called "The Edge") too:Tham wrote:Here is the Dod FX85 Harmonic Enhancer's circuit diagram,
sent to me by Dod recently.
.....
http://www.americaspedal.net/fx87/
- 14 Feb 2017, 18:38
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Origin of the Ibanez TS-808 Tubescreamer?
- Replies: 69
- Views: 51476
Re: Origin of the Ibanez TS-808 Tubescreamer?
..... Maybe somewhat interesting side story: There was this guy that worked at a local music store we’d used to hang, and he was a great guitar player and he was in charge of the electric guitar section of the store and also the guy that went to Frankfurt and that bought all the new pedals for the ...
- 27 Dec 2016, 09:13
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Daphon - DF2210 Wah [schematic]
- Replies: 27
- Views: 19306
Re: Daphon - DF2210 Wah [schematic]
Hi! does anybody know which parts must be changed in the pedal for a kinda metal sound? and how to add q, gain, bass and treble controls? Is your Google broken? :horsey: This thing is a piece of cheap crap with a circuit similar to the original cry baby, and with all the faults of the cry baby. Per...
- 17 Aug 2016, 05:23
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Panther Distortion DI-10 traced [schematic]
- Replies: 14
- Views: 7404
Re: Panther Distortion DI-10 traced [schematic]
The 47k resistors in the tone control are still wrong. They should be 27k, according to your pictures.
- 16 Aug 2016, 10:13
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Panther Distortion DI-10 traced [schematic]
- Replies: 14
- Views: 7404
Re: Panther Distortion DI-10 traced [schematic]
And BTW:
the resistors near the tone control are - according to the picture - 27k and not 47k.
the resistors near the tone control are - according to the picture - 27k and not 47k.
- 16 Aug 2016, 10:07
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Panther Distortion DI-10 traced [schematic]
- Replies: 14
- Views: 7404
Re: Panther Distortion DI-10 traced [schematic]
Schematic is still wrong. there is no cap in parallel to the diodes, this cap is after the 27k-resistor near the tone-pot
- 16 Aug 2016, 10:05
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Locobox - Mysto-Dysto Distortion Unit [schematic]
- Replies: 16
- Views: 11291
Re: Locobox - Mysto-Dysto Distortion Unit [schematic]
Schematic is still wrong. there is no cap in parallel to the diodes, this cap is after the 27k-resistor near the tone-pot
- 08 Aug 2016, 08:01
- Forum: Boutique Stompboxes dissected...
- Topic: Zvex - Fuzz Factory 7
- Replies: 4
- Views: 4559
Re: Zvex Fuzz Factory 7
Of course...... Zachary should have one.
- 15 Jul 2016, 06:53
- Forum: Boutique Stompboxes dissected...
- Topic: Rockett Flexdrive dissected
- Replies: 9
- Views: 7717
Re: Rockett Flexdrive dissected
Now there is only missing a 22k resistor (maybe 2k2) between pin 6 and 7 of the second opamp (instead of the short).
- 13 Jul 2016, 07:33
- Forum: Boutique Stompboxes dissected...
- Topic: Rockett Flexdrive dissected
- Replies: 9
- Views: 7717
Re: Rockett Flexdrive dissected
I bet the tone control is drawn wrong too and should look like one from a tube-screamer - please verify.
- 12 Jul 2016, 17:49
- Forum: Boutique Stompboxes dissected...
- Topic: Dunlop - Band of Gypsys Fuzz Face Mini FFM6
- Replies: 17
- Views: 14104
Re: Dunlop - Band of Gypsys Fuzz Face Mini FFM6
Now let's see: If you have a tube and someone writes "transistor" on it, does that mean that it is a transistor or still a tube ? If someone writes "clever" on your forehead, does that prove that you are really clever ? And if a company takes a red box, writes "Fuzz Face&quo...
- 11 Jul 2016, 09:32
- Forum: Boutique Stompboxes dissected...
- Topic: Dunlop - Band of Gypsys Fuzz Face Mini FFM6
- Replies: 17
- Views: 14104
Re: Dunlop - Band of Gypsys Fuzz Face Mini FFM6
Great Pedal! I love it. Cleans up real nice when you roll down the volume. Quite different from other Fuzz Face pedals being based off the Octavio circuit minus the octave. BC108's for transistors. Sounds best with a stack. What are you vomitting about ? Too much dope today ? There is not a single ...
- 10 Jul 2016, 07:53
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Top Gear - Fuzz Sustain - 3 knob [schematic]
- Replies: 8
- Views: 6546
Re: Top Gear Fuzz Sustain - 3 knob [schematic]
Only this is written on it or a secret on the other side?
- 09 Jul 2016, 17:34
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Top Gear - Fuzz Sustain - 3 knob [schematic]
- Replies: 8
- Views: 6546
Re: Top Gear Fuzz Sustain - 3 knob [schematic]
Thanks for the nice pictures. The only still unanswered question is: what is written on that brown ceramic capacitor beside the two diodes ?
- 23 May 2016, 09:56
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Ibanez - FL-305 Flanger
- Replies: 10
- Views: 7792
Re: Ibanez - FL-305 Flanger
I like those japanese engineers. Obviously in 1976 they were even able to clone something which didn't exist.Fender3D wrote: .....
The rest is a MXR M117 clone with tweaked parts, the setting procedure should be the same...