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Messages - joecool85

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Schematics and Layouts / Re: Roland JC-40 Schematic
« on: April 13, 2021, 04:29:51 PM »
I don't have the schematic, but would also love to see one.  This is a neat amp!

Tried to upload, but it's about half a meg bigger than the 5Mb limit.  If you want to bump the limit, I will attach.   :)

edit: nevermind, zipped

If you'd like to share it unzipped, I've adjusted the limited from 5mb to 7.5mb.

Schematics and Layouts / Re: Roland JC-40 Schematic
« on: April 12, 2021, 09:01:21 AM »
I don't have the schematic, but would also love to see one.  This is a neat amp!

Honey Amp / Getting started with your Honey Amp
« on: April 03, 2021, 09:05:08 PM »
Thanks for purchasing your Honey Amp!  Time to put it together and start making music!

None of the parts in your kit will be labeled to match component numbers in the schematic.  IE, a capacitor won't be labeled "C1."  This means that you need to know how to read component values.  Luckily, this isn't difficult and there are a lot of resources to help you along the way.

AMZ's Capacitor Calculator:
Capacitors have varying types of labels on them.  Electrolytic capacitors (they look like tiny soda cans) are usually labeled with plain text that will tell you the size and maximum voltage of the capacitor (10uF / 63v etc).  Pretty much all other capacitors use a code.  To break this down, use the link above.

Resistor Calculator:
Resistors don't typically have values printed in numbers on them.  Instead, resistors use color bands.
 Thankfully there are charts, graphs, and calculators online available to help you decode this color band system - I like this one for it's simplicity.  It's easy to use, and it makes it easy to start learning how the color codes work so they make sense.

The rest should be pretty straight forward by following the silk screening on the PCB.  IE - it shows the direction to put the IC in, same with transistor and even diodes.

Now that you have identified your components, it's time to start soldering.

Always start with the shortest objects first.  When I say this, I mean the components that are the closest to the board.  In the case of the Honey Amp, it works well to start with the 1n4148 diode and resistors.  Put them in place, bend the leads slightly and then turn the board over.  Solder them on and then clip the remaining lead.  Continue on until you have installed the tallest component.  Now you are ready for off-board wiring.

Honey Amp / Honey Amp Docs
« on: April 01, 2021, 09:37:12 PM »
Enjoy  :tu:

Honey Amp / Honey Amp FAQ
« on: April 01, 2021, 09:27:41 PM »
Q: Why was the SSG-AMP-1 kit eventually called the "Honey Amp"?
A: My first build using the printed PCBs went into a tea tin.  The second one went into a Honeywell HVAC control box.  I trimmed the "we" in Honeywell and it made "Honeywell" (Honey II).  This means the first one was the Honey and I decided to go with the name.

Q: Where can I purchase a Honey Amp kit?
A: Currently these are not for sale.  The kickstarter has finished and I am mid-process shipping the kits out from that.  Once this is completed, I will be adding a store section to where you can purchase a kit then.

Q: How much power can I expect this to make?
A: The power output is dependent primarily on impedance of the speaker the amplifier is connected to as well as the supply voltage applied to the board.  Obviously there also needs to be sufficient input signal strength.  Maximum power for this board is 1.6w on a 16 ohm load using 16v supply voltage.  Using an 8 ohm speaker the maximum power output is going to be 0.85w powered by a 12v supply.  And lowest power comes from a 4 ohm speaker on a 9v supply coming in at only 0.35w.

Q: Can I use this for electric bass?
A: You sure can!  If using this for electric bass, you will want to adjust the output capacitor from the stock 470uF to somewhere around 2,000uF.  You will also probably want to make some changes to the tone stack (adjusted to taste).  Please remember that using a proper electric bass speaker will really be necessary to make this sound decent.

Q: Can I play music through this (mp3 player, cell phone etc)?
A: No problem!  I do this regularly with mine, it works great to drive some speakers for my desk when I want to listen to music on my laptop.  Use the aux input on the board and crank up some tunes!

Q: What about power supply?  What should I use?
A: Most little amps like this end up being powered by batteries, but any stable DC voltage supply ranging from 6v to 18v will work depending on what impedance you have hooked to it.  Recommended max voltage for 4 ohm will be 9v, max for 8 ohm is 14v, max for 16 ohm is 16v.

Q: Can I get clean tones from this amp?
A: While this amp does best for crunchy tones, it does have some tasty clean sounds as well - just at lower volumes.  To get this dialed in, start with gain all the way down and volume at half.  Turn your volume up to the desired level (it may well be maxed out and that is okay).  Then slowly turn the gain knob up until it starts to get a little distortion, back it down just below that point and that is the loudest clean setting you can get.

Does the amp still turn on?  Is there any sound at all coming out of the speaker?

Gamechanger has created and released the Light Pedal.  This is a spring reverb pedal that incorporates not only real springs, but also infrared optical coupling to achieve their sonic offering.  This sounds very interesting, but it lists for 289 EUR, about $350 USD.  I've never spent remotely that much on a pedal, but maybe someone will?

Amplifier Discussion / Re: What makes for a good clean channel?
« on: February 17, 2021, 11:17:29 AM »
For me the short of it is yes, sparkly clean but with tone shaping.  Normally a -10db dip in mids, centered around 600hz.  After that it is up to preference if you drop lows or highs.
Hi Joe, Your observation is correct but sadly it is only one piece of a much larger jigsaw puzzle.
If you insert that tone curve into a generic SS amp it won't sound like it's valve equivalent.

He asked for a clean channel, I figured he meant just preamp.  If that is the case, I stand by my argument.  Of course, taste/preference is relative.

I do agree about what you said though.  I've not tried using a transformer for speaker output, but I've thought about it because I constantly hear about it's magical properties.

Preamps and Effects / Re: The JFET Bender Preamp
« on: February 16, 2021, 11:39:36 AM »
I wish I did, but I'm just not set  up to do it. I could buy some equipment, but I'm not sure what the best way to go is. Got a couple of mics and a few PA mixers. Don't know anything about the digital end of things.

Honestly even a simple phone recording would be great!

Preamps and Effects / Re: The JFET Bender Preamp
« on: February 16, 2021, 08:57:12 AM »
Bringing this one back from the dead.  Does anyone have any sound clips of this circuit?  Looks interesting - not sure how I missed it back in '17!

Amplifier Discussion / Re: What makes for a good clean channel?
« on: February 16, 2021, 08:53:42 AM »
For me the short of it is yes, sparkly clean but with tone shaping.  Normally a -10db dip in mids, centered around 600hz.  After that it is up to preference if you drop lows or highs.

Guitar News / Hughes and Kettner AmpMan - 50w fancy pedalboard amp
« on: February 12, 2021, 11:12:50 AM »
Hughes and Kettner have released the AmpMan Classic pedalboard amps.  50 watts of on-board power, 2 channels, and multiple controls but limited tone.  It has sagging, presence, and resonance, but only a "tone" control for both channels.  While I'm sure it sounds great, it is starting at almost $500 USD.  Full of mojo?  I sure hope so!

Guitar News / EHX Ripped Speaker - Make your rig sound broken!
« on: February 12, 2021, 11:05:53 AM »
EHX has released the "Ripped Speaker" effects pedal.  It claims to emulate that "torn speaker" sound.  While I can't imagine that is a sound someone would emulate on purpose, for $99 USD it can be on your pedal board!

What do you guys think?

Software / Re: Drawing schematics
« on: February 05, 2021, 08:03:07 AM »
Personally I have settled in on KiCad.  Available on Linux, Mac, and Windows.  Plus you can do PCB design in there, even having a 3d layout view!  And a lot of PCB houses accept KiCad files natively for PCB production.

Woops... forgot that one.  As a 20-year Linux user, I should have remembered, but then I also remember all the time I spent trying to get it to work, giving up, and eventually firing up Eagle, LOL.  Now Eagle got sold to the dark side so KiCad is back on the menu.  It's much better now.

I've also had problems with KiCad on Linux in the past, but always manage to get it to work eventually.  Currently no problems though, and Mac/Windows versions have always been stable from what I've experienced.

Schematics and Layouts / Re: Schematic for Peavey PV215D, PV2015D
« on: February 02, 2021, 01:25:20 PM »
Thanks for sharing, and good luck with the repair!

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