JOYO JF-13 AC Tone Guitar Effect Pedal DI Amp Sim

Product Information

I used a SPDT switch, some fine wire-wrap wire, and a tiny bit of good ol' lead-tin solder with flux. Here are a small "map" of where those components are if you want to tweak them, and a simulation of the frequency responses of the British, Liverpool and AC Tone. To get the right value of the resistor I soldered two lugs of a 10k-pot instead of a fixed resistor and turned it as long as I got nearly the same volume in both positions. Then I disoldered the 10k-pot again and measured the resistance between the affected two lugs. In my case it was around 3k3. So I soldered a fixed 3k3 resistor instead of the 10k-pot and it works great in all positions of the Volume-pot. Maybe values between 2k2 to 3k9 will work. Just have a try or do it with a potentiometer like I did. Disclaimer : This is an attempt to recreate my previous posts in the "Character Series" thread that were lost in the server move. If your memory is better than mine, please comment. It's not true-bypass, but you don't care because the opamp before drives your signal with an appropriately low impedance.

The AC Tone JF-13 from Joyo is more than just an overdrive pedal. It's more of an amp simulator which is great at producing those distinctive Vox AC30 amp style tones. This means you can even run it straight into a PA system without the need for an amplifier.

No, it's not what you think. I've used a few drops of translucent hot glue to make sure that the wires won't come off, i don't trust such a tiny blob of solder from a mechanical point of view. I did also use that to add some stress relief on the ribbon to the footswitch, it's a breakdown waiting to happen, just waiting for your next gig. This pedal can crate a range of sounds due to the in built EQ which allows you to control the Mid, High and Low ranges. There's also the Level, Voice and Drive controls which can further alter your sound. You can spend absolutely ages playing around with this pedal as you try to find that perfect tone!

Thanks again for your work on the new pcb-layout - now it is a very versatile component of my pedal-board.The Joyo AC Tone (JF-13) is a clone of the "Liverpool" from the Tech21 Character Series. The layout of the knobs on the front panel has been altered and the "Character" knob has been relabelled as "Voice" but otherwise everything is the same as for The Liverpool. Remove R29, it should be 6.2k in value. That should get the mic sim to be less present when doing the cab sim bypass on the California sound. R28 measured 22k on mine, I wonder if they changed that value lately.