Maxon · OD-9 · 1980s original; reissued from 2002
The OD-9 is the TS9 under the name of the company that built it. Nisshin Onpa's Maxon brand sold the 9 series in Japan while Ibanez sold the same pedals abroad, and after Nisshin stopped making the TS9 for Ibanez in 2002, Maxon brought the OD-9 back that summer. Maxon says it's the original 1980s circuit on the same board it had used for decades, with empty spots where the FET switching parts used to go. It runs a JRC (NJM) 4558D chip, and without the switching circuit it has a bit more output and a slightly more open sound than the OD808. The first shipments to the US used a DPDT switch, and Maxon then moved every 9-series pedal to a 4PDT true bypass switch. Analog Man calls it the obvious choice if you want a Tube Screamer with true bypass, and its pots and jacks are hand-wired like a TS9's, so it's easy to keep running. If you'd rather not chase a vintage TS9, start here.
There's not much to go wrong. Check the switch, jacks and pots for wear, and ask about mods, since Analog Man and others offer TS9-style mods for it.
We haven’t been through this pedal’s listings yet. Search eBay for the exact model and run every listing through the checklist above. Ask for a photo of the bottom plate and a short video of the pedal on and off through an amp, and pass on any listing that won’t show them.
Search “Maxon OD-9 Overdrive” on eBay ↗eBay searchPlenty of used pedals turn up without a power supply. Check the power line in the specs above, then match the voltage and plug before you buy one. This searches Amazon for the usual kit.
Search power supplies ↗Amazon search
Ibanez · Tube Screamer
OverdriveTS9
$90–$180 typical ask
Maxon · Tube Screamer
OverdriveOD808
Specs and what to check →

Ibanez · Tube Screamer
OverdriveTS9DX
$110–$160 typical ask

Boss · Boss compact
OverdriveSD-1
$75–$220 typical ask