HAO - Rust Booster I + Rust Booster II LTD
- analogguru
- Old Solderhand
Information
Here are some photos of
version I:
http://www.digimart.net/images/1960/DS00169470.jpg
http://www.digimart.net/images/2540/DS00302428.jpg
http://www.digimart.net/images/71/DS00301334_1.jpg
inside:
http://www.digimart.net/images/71/DS00301334_3.jpg
version II:
http://www.digimart.net/images/2540/DS00306601.jpg
http://www.digimart.net/images/3120/DS00301740.jpg
http://www.digimart.net/images/64/DS00218705.jpg
http://www.digimart.net/images/64/DS00195080_1.jpg
version III:
http://www.digimart.net/images/800/DS00190562_1.jpg
http://www.digimart.net/images/2040/DS00281109_1.jpg
http://www.digimart.net/images/1000/DS00168292.jpg
analogguru
version I:
http://www.digimart.net/images/1960/DS00169470.jpg
http://www.digimart.net/images/2540/DS00302428.jpg
http://www.digimart.net/images/71/DS00301334_1.jpg
inside:
http://www.digimart.net/images/71/DS00301334_3.jpg
version II:
http://www.digimart.net/images/2540/DS00306601.jpg
http://www.digimart.net/images/3120/DS00301740.jpg
http://www.digimart.net/images/64/DS00218705.jpg
http://www.digimart.net/images/64/DS00195080_1.jpg
version III:
http://www.digimart.net/images/800/DS00190562_1.jpg
http://www.digimart.net/images/2040/DS00281109_1.jpg
http://www.digimart.net/images/1000/DS00168292.jpg
analogguru
There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.
- Bernardduur
- Transistor Tuner
Anyone knows what makes this pedal tick? I am quite interested
'No more....... loud music.......'
Follow my love for pedals and amps on https://bernardduur.blogspot.com and https://www.instagram.com/bernardduur1
Follow my love for pedals and amps on https://bernardduur.blogspot.com and https://www.instagram.com/bernardduur1
Hey Guys,
This is the schematic for the HAO Rust Booster I and also the Rust Booster II and also the manuals. (one is in Japanese) I traced this schematic from model #206 on the Hao Rust Booster I and #77 on the Rust Booster II. The two effect are exactly the same however, The RB I uses a TL072CN opamp and the RB II uses a TL072CD opamp. Both manufactured by ST. Both effects sound exactly the same. Sorry no gut shots I am waiting on my friend to scale them down for me. I will post them as soon as he is finished. I built them both on my breadboard and tested them to the origianls and they sound identical. There cool little effects. I also saw gut pics of a Rust Booster III and it appears like nothing has changed. Enjoy!
Best,
Ron
Edit: Sorry that the images are so large, I am still very new to this board.
This is the schematic for the HAO Rust Booster I and also the Rust Booster II and also the manuals. (one is in Japanese) I traced this schematic from model #206 on the Hao Rust Booster I and #77 on the Rust Booster II. The two effect are exactly the same however, The RB I uses a TL072CN opamp and the RB II uses a TL072CD opamp. Both manufactured by ST. Both effects sound exactly the same. Sorry no gut shots I am waiting on my friend to scale them down for me. I will post them as soon as he is finished. I built them both on my breadboard and tested them to the origianls and they sound identical. There cool little effects. I also saw gut pics of a Rust Booster III and it appears like nothing has changed. Enjoy!
Best,
Ron
Edit: Sorry that the images are so large, I am still very new to this board.
- briggs
- Tube Twister
Information
- analogguru
- Old Solderhand
Information
Thanks ! (But..... )
D1 is drawn in the wrong direction - or more probably is not a 1N914.
I would assume that it is a zener-diode with a value of 5,6 V.
BTW, if you save such a schematic as black-white .gif picture the size is smaller ad the drawing stays sharp (as you can see below).
analogguru
D1 is drawn in the wrong direction - or more probably is not a 1N914.
I would assume that it is a zener-diode with a value of 5,6 V.
BTW, if you save such a schematic as black-white .gif picture the size is smaller ad the drawing stays sharp (as you can see below).
analogguru
There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.
- soulsonic
- Old Solderhand
Information
Nice and simple. Thanks RonScott!
"Analog electronics in music is dead. Analog effects pedal design is a dead art." - Fran
- analogguru
- Old Solderhand
Information
No, thats wrong....: it´s done in old Korg pedals...Fuzzer wrote:I think that's what modern BOSS pedals and Ibanez pedals do, for the LED.
analogguru
There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.
- modman
- a d m i n
Information
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Good work! Thanks for sharing Ron! If corrections are needed and attachments need to be removed, just drop a line.
(merged with an older thread containing pics from the three different versions)[/color]
(merged with an older thread containing pics from the three different versions)[/color]
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The crucial part is the IC in this circuit. My clone sounds best with a TI 072 and JRC 072BD.
It seems that 072 from other manufactures don't have enough slew rate. Acc. to the spec sheets they have 10 - 12, but IMHO they are only something relabled. Slew rate is app. 2- 4 and they produce no headroom in this circuit, a harsh and brittle or a muddy tone.
JHS
It seems that 072 from other manufactures don't have enough slew rate. Acc. to the spec sheets they have 10 - 12, but IMHO they are only something relabled. Slew rate is app. 2- 4 and they produce no headroom in this circuit, a harsh and brittle or a muddy tone.
JHS
Man, but I'm not lying with the LED thing, I just checked and here it is for the DD-2 and the Tubescreamer;
I mean, you bet Korg pedals have it, as you said, but also the ones I mentioned.
I mean, you bet Korg pedals have it, as you said, but also the ones I mentioned.
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The Freestompboxes Forum search function is soo great, use the search function..., the S E A R C H function.
- analogguru
- Old Solderhand
Information
Maybe I didn´t express myself good enough:
I was not talking about the use of a zener diode (only).
I was talking about an identical arangement of components (as can be seen below) - the source where the idea was borrowed from. And this was done by Korg. As far as I know the other pedals use electronic switching.
analogguru
I was not talking about the use of a zener diode (only).
I was talking about an identical arangement of components (as can be seen below) - the source where the idea was borrowed from. And this was done by Korg. As far as I know the other pedals use electronic switching.
analogguru
There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.
Ohh, I'm sorry, I also didn't express myself correctly; I was solely speaking about the zener diode for the Indicator arrangement, when I wrote the statement above.
Anyways, thanks for the complete explanation.
I have to note something though, and is that the 47 [uF] capacitor is oriented backwards, in the schematic for the Rust Booster.
Anyways, thanks for the complete explanation.
I have to note something though, and is that the 47 [uF] capacitor is oriented backwards, in the schematic for the Rust Booster.
The Freestompboxes Forum search function is soo great, use the search function..., the S E A R C H function.
- devastator
- Cap Cooler
Why there're a "boost" control and a "level" control ? It can really give an overdrive tone whithout clipping diodes ?
Vol. sets overall output level, Boost fattens the sound and generate a harsh distortion and a bass cut when maxed.
The distortion doesn't sound good on it's own or in front of a trannie amp but it's excellent for boosting an already distorting Brit. NM tube amp. The harsh dist. with it's decreased bass blends perfectly with the amp distortion w/o making the sound whooly or muddy.
JHS
The distortion doesn't sound good on it's own or in front of a trannie amp but it's excellent for boosting an already distorting Brit. NM tube amp. The harsh dist. with it's decreased bass blends perfectly with the amp distortion w/o making the sound whooly or muddy.
JHS
- devastator
- Cap Cooler
ok thanks for this explanation
So, isn't an overdrive more a crancked AOP
So, isn't an overdrive more a crancked AOP