NPD: Joyo Tremolo ..........+ mod!

[czech-one-2]

Well my Joyo tremolo finally arrived from yoosmart and it really sounds nice,optical and very amp like!However with the intensity up above 11 o'clock the volume is below unity gain and begins to take a nosedive fast from there up.So I opened it up and took it apart,and hidden from view are two trim pots! One for intensity and one for volume...problem solved right? Well unfortunately the volume trim pots on these ship maxed out already.
I noticed it is only a 10k trim pot so within 15 minutes of receiving the pedal I've got the soldering iron out. I switched the 10k trimmer with a 100k trimmer and bam,there it is! True unity gain is at 50% of the 100k trimmer and theres lots of volume boost available from there on up if so desired. You can also mount your new trimmer on the underside of the board so its accessible by just removing the bottom plate. I loved my EA tremolo but this one is much nicer being optical and post mod I'd say its the best sounding trem I've owned.

[Thighbanez]

Originally Posted by czech-one-2

Well my Joyo tremolo finally arrived from yoosmart and it really sounds nice,optical and very amp like!However with the intensity up above 11 o'clock the volume is below unity gain and begins to take a nosedive fast from there up.So I opened it up and took it apart,and hidden from view are two trim pots! One for intensity and one for volume...problem solved right? Well unfortunately the volume trim pots on these ship maxed out already.
I noticed it is only a 10k trim pot so within 15 minutes of receiving the pedal I've got the soldering iron out. I switched the 10k trimmer with a 100k trimmer and bam,there it is! True unity gain is at 50% of the 100k trimmer and theres lots of volume boost available from there on up if so desired. You can also mount your new trimmer on the underside of the board so its accessible by just removing the bottom plate. I loved my EA tremolo but this one is much nicer being optical and post mod I'd say its the best sounding trem I've owned.

Awesome info man!
May have to get one of these to replace my Danelectro one day.

[czech-one-2]

Quick pic of the new,accessible 100k trim pot. I highly recommend this simple mod!

[czech-one-2]

One last thing,its definately not a Diaz Tremodillo,the Joyo has 3 opamps and photocell, the Diaz doesnt -
http://www.freestompboxes.org/viewto...16105&start=20

Dont really care what its based on,its optical and sounds sweet!

[blamcaster]

Would increasing the value of the other trim pot give you more intensity as well?

[Arbiter]

I got mine a week ago. The sound is seriously great. Good stuff.

However, I'm having an issue and maybe one of y'all can help me out.

I get a quiet pop through the signal chain when turning it on or off. Loud enough that I can't record with it, I don't think. Live it would be annoying. Any ideas, or better yet, fixes?

[smoss469]

Work the switch a few times. I've also read that turning the pedal upside down for a while might help, in case the lubricant doesn't get all the parts properly.

[czech-one-2]

Does it do it if you hook it up guitar>trem>amp, with no other pedals? One of your other pedals could be leaking a slight amount of dc,causing true bypass pedals to 'pop'. Or try it in a different position in the chain.I also agree that stepping on it say 50x can help break the switch in.
You could also try a 'premium' 3pdt switch if you want to upgrade,could just be a bad switch in the joyo.

[Arbiter]

Work the switch a few times.

Did this.

Does it do it if you hook it up guitar>trem>amp, with no other pedals?

Yes. Thanks to both of you for chiming in here and helping a guy out.

I'm just going to roll with it a bit and see what happens. From what I've been reading, this may just be a normal thing for a true bypass pedal. Never had one before. May have to go to something else as I do a fair amount of live recording, but damn, this thing has a great sound.

[TinyGomery]

The other fix, of course, is to take the 'pop' out of your recordings in post-production.

[Arbiter]

Originally Posted by TinyGomery

The other fix, of course, is to take the 'pop' out of your recordings in post-production.

Along with my mistakes and the very slight filament hum from my Champ 600!

If the sound gets quieter with use I'm just going to leave it. If not, I'll find something buffered that hopefully will sound as good. This pedal has some pretty amazing tone to it.

[Late Comer]

I think I'm gonna pull the trigger and get one this week. Thanks for the mod tip. I have a Behringer, but the volume drop makes it unusable live.

How was Yoosmart to deal with?

[blamcaster]

Yoo smart was good to deal with.

My pedal however.....arrived DOA. I had some wires shorting each other out in mine. Build quality and components are what you'd expect for the price. I wouldn't gig with one.

As well, the pedal needs more depth imho. Either by changing the pot or bending the tab on the trim pot to get more range.

[LaceSensor]

Add a pull down resistor on the switch to try to get rid of the pop. $0.05 mod right there.

[czech-one-2]

Originally Posted by blamcaster

Yoo smart was good to deal with.

My pedal however.....arrived DOA. I had some wires shorting each other out in mine. Build quality and components are what you'd expect for the price. I wouldn't gig with one.

As well, the pedal needs more depth imho. Either by changing the pot or bending the tab on the trim pot to get more range.

Not sure I understand what you mean by 'bending the tab on the trim pot'
Could you explain?

Also, I recommed rewiring all those tacked on wires from the footswitch to the pcb. Use more robust wire and thread em through the holes instead of tacking em on. IMHO it makes these cheap pedals gig worthy!I've done this to my Joyo compressor and American sound as well. But you need to be careful and use a thin solder wick to remove the lead free solder,its not the easiest stuff to de-solder.

By the way, speaking of the compressor, the trim pot on mine was adusted way off from the factory,so if you have the comp, check it out.You can adjust it by ear to the noisiest compressor setting [ala dyna comp set up]. But if you have a multi meter both sides of the trim pot should read with the same resistance when set up properly. It made a definate improvement in mine.I dont think they are measuring these things upon assembly.

[1955]

Great mod. Fun stuff!

[blamcaster]

Originally Posted by czech-one-2

Not sure I understand what you mean by 'bending the tab on the trim pot'
Could you explain?

.

The internal trim pot has a little tab on it.

When you turn the trim pot fully up or down the tab is what stops it from extending past it's range.

If you remove the tab, you have about 10-20% more range, which for me made a huge difference.

[czech-one-2]

Originally Posted by blamcaster

The internal trim pot has a little tab on it.

When you turn the trim pot fully up or down the tab is what stops it from extending past it's range.

If you remove the tab, you have about 10-20% more range, which for me made a huge difference.

Awesome, easier than changing it out too!
I kinda like have the trimmer accessable,and I moved the 'depth' trimer to the other side as well.Just makes it more tweekable.
But really, all it needs is that 10-20% more volume so good call!

[Mr Mxyzptlk]

Hi czech-one-2 and blamcaster,

I was the winning bidder in an eBay auction for a Joyo tremolo, and it's on its way to me now. I've been reading everything I can find online about this device, including this thread, with great interest. I want to be sure I understand what you're saying about the internal trim pots: I understand that the depth/intensity pot can be turned past its normal upper limit by bending the tab that normally prevents this from occurring. However, I'm not clear on whether it's possible to do this with the volume trim pot. Do I really need to replace the 10k volume pot with a 100k pot if I want a bit more volume, or can I raise the volume sufficiently just by bending the tab and turning the control a small amount? Thanks in advance!

[czech-one-2]

Originally Posted by Mr Mxyzptlk

Hi czech-one-2 and blamcaster,

I was the winning bidder in an eBay auction for a Joyo tremolo, and it's on its way to me now. I've been reading everything I can find online about this device, including this thread, with great interest. I want to be sure I understand what you're saying about the internal trim pots: I understand that the depth/intensity pot can be turned past its normal upper limit by bending the tab that normally prevents this from occurring. However, I'm not clear on whether it's possible to do this with the volume trim pot. Do I really need to replace the 10k volume pot with a 100k pot if I want a bit more volume, or can I raise the volume sufficiently just by bending the tab and turning the control a small amount? Thanks in advance!

I've not tried the 'bend the tab' method, but it sounds like it works just fine.
Try it first,if,for any reason it breaks then pop in a 100k trimmer. Its good that theres a couple options here.