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Casio PG-310 synth guitar power adapter
Old 4th August 2019
Gear Maniac

Casio PG-310 synth guitar power adapter

Recently picked up a Casio PG-310 synth guitar. Was pretty shocked how quickly it ate up a 9v battery to power the synth engine. The original power 9v adapter was a Casio AD-5 which is hard to find. Just wondering if any one knows of another easy to find power adapter for the PG series guitars that works well without damaging the electronics. I'm having trouble finding specs on the requirements for this guitars power. Not sure if a typical Boss pedal adapter would work or something similar with out frying it? It was not a cheap guitar to buy. thanks
Old 4th August 2019
Lives for gear
kennybro's Avatar
It's 9v dc, center positive, 850ma. Right, original is not the easiest thing to find. But there are compatibles available. Anything with those specs.
Old 4th August 2019
Gear Maniac

thanks for the help, cheers
Old 5th August 2019
Lives for gear
kennybro's Avatar
Originally Posted by Xavier G View Post
thanks for the help, cheers
If you find something that's 9v, 850ma and center negative, you can always get a flip adapter, or just cut the cord and put it back together polarity flipped.

Some devices work well with more ma, like maybe 1A, but who knows how this will react to more voltage. Stick with the 850. 9v is a piece of cake, that's the most standard.
Old 7th August 2019
Lives for gear
Mikhael's Avatar

Generally, if the adapter has a greater current output, that's not a problem. A 1A (1000mA) adapter should work fine. The voltage needs to be pretty much exact, but the circuit will only draw as much current as it needs.
Old 10th August 2019
Gear Maniac

I ended up getting a 2A adapter from a bin in the back of the music store for free which was nice. The guys at the local music store were quite intrigued by the Casio Pg-310 as they had never seen one before. After trying a few adapters they had for sale, all of them seemed to cut out due to being too lose in the power input so they found one in a random adapter bin that worked nicely.

This guitar is very cool if your into synth guitars but does come with some technical challenges I hope to overcome.
-synth engine is noisy (high pitch white noise coming from synth output similar to a cheap computer sound card)
-2 outputs (synth & guitar + guitar only) would be nice to use both outputs at the same time thru my pedal board. The level of the guitar is way quieter from the synth output compared to the guitar only output.
-crackly synth pot which should be an easy fix
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