Keeley - Katana
- rocklander
- Old Solderhand
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- my favorite amplifier: my jansen bassman 50
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I did a search and saw the thread where Bajaman posted this link to a schematic, so I'm not sure if it actually is the keeley katana or not (the schem suggests it's similar?) so verification would be cool if anyone can do/has a real one?
based on it I ran it into eagle and came up with this schem/pcb/overlay. totally unverified, and I don't have any software to check it.. anyone here have that? will have a go at breadbording it, but waiting on some parts from overseas
anyway... very new to the eagle schem->pcb stuff so I'd be delighted for anyone to share their comments/corrections/suggestions on it.
based on it I ran it into eagle and came up with this schem/pcb/overlay. totally unverified, and I don't have any software to check it.. anyone here have that? will have a go at breadbording it, but waiting on some parts from overseas
anyway... very new to the eagle schem->pcb stuff so I'd be delighted for anyone to share their comments/corrections/suggestions on it.
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- sm-schematic.jpg (21.88 KiB) Viewed 7910 times
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- sm-pcb-overlay.jpg (27.11 KiB) Viewed 7805 times
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- sm-pcb-mono.jpg (20.72 KiB) Viewed 7769 times
world's greatest tautologist ...in the world
Ronsonic wrote:...the lower the stakes the more vicious the combat.
atreidesheir wrote:He should be punched in the vagina.
- soulsonic
- Old Solderhand
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I would get that Drain trimmer OUTTA THERE! and just have a fixed resistor of about 4K7 on the Drain. I would put the biasing trimmer on the Source where it belongs... i.e.; replace R2 with the 5K trimmer. Other than that, it looks okay; I'd maybe try to squeeze things tighter together in the PCB layout.
"Analog electronics in music is dead. Analog effects pedal design is a dead art." - Fran
- rocklander
- Old Solderhand
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- Posts: 2726
- Joined: 18 Apr 2008, 11:33
- my favorite amplifier: my jansen bassman 50
- Completed builds: rebote 2.5; supreaux; odie; heartthrob tremolo; ross phaser; dr. boogey; thor; baja black toast; slow gear attack, rebote, tri-vibe, small clone, little angel, magnus modulus, echo base, hex fuzz, big muff, 22/7.
- Location: Rotorua, New Zealand
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okay - I'll make those changes tonight at home - thankssoulsonic wrote:I would get that Drain trimmer OUTTA THERE! and just have a fixed resistor of about 4K7 on the Drain. I would put the biasing trimmer on the Source where it belongs... i.e.; replace R2 with the 5K trimmer.
yeh, like I said, pretty new at this eagle, and it was past my bedtime when I got to this stage , but I agree I need to tighten it up on the PCB, thanks...soulsonic wrote:Other than that, it looks okay; I'd maybe try to squeeze things tighter together in the PCB layout.
world's greatest tautologist ...in the world
Ronsonic wrote:...the lower the stakes the more vicious the combat.
atreidesheir wrote:He should be punched in the vagina.
- rocklander
- Old Solderhand
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- Posts: 2726
- Joined: 18 Apr 2008, 11:33
- my favorite amplifier: my jansen bassman 50
- Completed builds: rebote 2.5; supreaux; odie; heartthrob tremolo; ross phaser; dr. boogey; thor; baja black toast; slow gear attack, rebote, tri-vibe, small clone, little angel, magnus modulus, echo base, hex fuzz, big muff, 22/7.
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so besides the BC413 what else would you suggest?JHS wrote:No it's not the Katana boost, it'a DIY project from a magazine. For better tone swap the MPSA18 for a BC413C.
IMHO the Katana is not that different from this booster.
JHS
I'm hoping you say something I have already or something that futurlec.com.au stocks cos I want to get some MAX1044's from them in the same order (can't find any other australasian distributor that has max1044 unless they're smd which wont work for a ham fisted meat axe like me )
world's greatest tautologist ...in the world
Ronsonic wrote:...the lower the stakes the more vicious the combat.
atreidesheir wrote:He should be punched in the vagina.
- rocklander
- Old Solderhand
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- Posts: 2726
- Joined: 18 Apr 2008, 11:33
- my favorite amplifier: my jansen bassman 50
- Completed builds: rebote 2.5; supreaux; odie; heartthrob tremolo; ross phaser; dr. boogey; thor; baja black toast; slow gear attack, rebote, tri-vibe, small clone, little angel, magnus modulus, echo base, hex fuzz, big muff, 22/7.
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do it! I'm happy to have a go, then somebody can tell me what I did wrongJimiB wrote:I have some really good pics of a Katana if anyone is interested I will post them. I would love to get this r.e.'d as it a killer boost
world's greatest tautologist ...in the world
Ronsonic wrote:...the lower the stakes the more vicious the combat.
atreidesheir wrote:He should be punched in the vagina.
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bring on the photographs! I want to know what's in there too!
- rocklander
- Old Solderhand
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- Posts: 2726
- Joined: 18 Apr 2008, 11:33
- my favorite amplifier: my jansen bassman 50
- Completed builds: rebote 2.5; supreaux; odie; heartthrob tremolo; ross phaser; dr. boogey; thor; baja black toast; slow gear attack, rebote, tri-vibe, small clone, little angel, magnus modulus, echo base, hex fuzz, big muff, 22/7.
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you beauty! any chance you could ID the transistors?
I'll have a go (my first) at this .. and see what I can get right...
I'll have a go (my first) at this .. and see what I can get right...
world's greatest tautologist ...in the world
Ronsonic wrote:...the lower the stakes the more vicious the combat.
atreidesheir wrote:He should be punched in the vagina.
- rocklander
- Old Solderhand
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- Posts: 2726
- Joined: 18 Apr 2008, 11:33
- my favorite amplifier: my jansen bassman 50
- Completed builds: rebote 2.5; supreaux; odie; heartthrob tremolo; ross phaser; dr. boogey; thor; baja black toast; slow gear attack, rebote, tri-vibe, small clone, little angel, magnus modulus, echo base, hex fuzz, big muff, 22/7.
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okay, so here's a quick overlay before I try to RE anything... there's a few spots I can't quite make out.
any chance you could clarify (or take pics with different light on) the areas I've highlighted in orange? there's 5 of them with orange arrows pointing at them
the red trace is the component side trace, yellow is offboard wiring.
any chance you could clarify (or take pics with different light on) the areas I've highlighted in orange? there's 5 of them with orange arrows pointing at them
the red trace is the component side trace, yellow is offboard wiring.
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- oranges.jpg (75.08 KiB) Viewed 7846 times
world's greatest tautologist ...in the world
Ronsonic wrote:...the lower the stakes the more vicious the combat.
atreidesheir wrote:He should be punched in the vagina.
- JimiB
- Solder Soldier
this is my only other gut shot - if higher rez would help on the other 2 I could crop a little or email them to ya full size. I am also goon post a scan of my notes. I just ran out of time on this (and everything else fun for the last 6 months but I am almost done with the nightmare project)
- rocklander
- Old Solderhand
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- Posts: 2726
- Joined: 18 Apr 2008, 11:33
- my favorite amplifier: my jansen bassman 50
- Completed builds: rebote 2.5; supreaux; odie; heartthrob tremolo; ross phaser; dr. boogey; thor; baja black toast; slow gear attack, rebote, tri-vibe, small clone, little angel, magnus modulus, echo base, hex fuzz, big muff, 22/7.
- Location: Rotorua, New Zealand
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thanks JimiB. I will keep at it.
world's greatest tautologist ...in the world
Ronsonic wrote:...the lower the stakes the more vicious the combat.
atreidesheir wrote:He should be punched in the vagina.
- soulsonic
- Old Solderhand
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We can assume from what's going on here that the MAX1044 is being used as a voltage doubler... but there are details I can't see well, and some stuff looks strange - like the negative voltage output of the chip (pin 5) is being shorted to ground; that doesn't seem good, but maybe it's not actually shorted to ground but is instead acting as a floating ground for the rest of he circuit to give a wider possible voltage swing?
it's hard to tell without being able to see all the tracks.
it's hard to tell without being able to see all the tracks.
"Analog electronics in music is dead. Analog effects pedal design is a dead art." - Fran
- soulsonic
- Old Solderhand
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It would be nice to be able to see the component side of the board from the opposite angle; there are details of the board surface that are hidden behind components right now. A shot straight on from above would be nice, and shot with no flash would be super.
How have you come along with it, Rocklander? I haven't been tracing it, just looking to make sure all the details are there.
How have you come along with it, Rocklander? I haven't been tracing it, just looking to make sure all the details are there.
"Analog electronics in music is dead. Analog effects pedal design is a dead art." - Fran
- rocklander
- Old Solderhand
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- Posts: 2726
- Joined: 18 Apr 2008, 11:33
- my favorite amplifier: my jansen bassman 50
- Completed builds: rebote 2.5; supreaux; odie; heartthrob tremolo; ross phaser; dr. boogey; thor; baja black toast; slow gear attack, rebote, tri-vibe, small clone, little angel, magnus modulus, echo base, hex fuzz, big muff, 22/7.
- Location: Rotorua, New Zealand
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to be honest.. pretty poorly. I can post the eagle schem I have so far, but it's not connected up really.. just kinda three parts I can see that do connect.
that particular pot is confusing me too cos it has like 9 lugs I can see do it's not just a double gang is it.. not sure what component to put in there from eagle
like I said, I have a basic start that I could put up so far in case anyone can add improvements or see bits I can't? lemme know.
[edit] bugger it, I'll post what I have in case it of use at all, but in need of a LOT of work so far
(I just need to add the actual *sch file, right? don't need al the #number files too?)[/edit]
that particular pot is confusing me too cos it has like 9 lugs I can see do it's not just a double gang is it.. not sure what component to put in there from eagle
like I said, I have a basic start that I could put up so far in case anyone can add improvements or see bits I can't? lemme know.
[edit] bugger it, I'll post what I have in case it of use at all, but in need of a LOT of work so far
(I just need to add the actual *sch file, right? don't need al the #number files too?)[/edit]
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- from-pics.zip
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world's greatest tautologist ...in the world
Ronsonic wrote:...the lower the stakes the more vicious the combat.
atreidesheir wrote:He should be punched in the vagina.