According to "In about 1993, Ibanez started to make the TS-9 again due to popular demand.
This "reissue" is just about identical to the last "original" TS-9s in sound, circuitry, and appearance.
Tamura in the late ’70s, the Ibanez Tube Screamer is arguably the most beloved of overdrive pedals.
It’s been rocked by guitar greats as diverse as Eric Johnson, Trey Anastasio, and Brad Paisley, and some would go as far as saying no single pedal has had a greater impact on musical expression or played as important a role in the development of effects modification.
If you are a geek like we are, check out this awesome article Tube Screamer®’s Secret for some cool info about why the tube screamer circuit sounds so good.
These pedals were actually manufactured by Nisshin, a Japanese company that produced pickups for some Ibanez guitars.
Pedals quickly became one of the most cost-effective, convenient, and instantaneous ways to generate the exciting new sounds that shaped rock ’n’ roll—and modern culture by extension.
By the late ’60s, the market was flooded with portable sound-modifying devices, and effects became commonplace in pop music. Ibanez and its parent company, Hoshino, were infamous in the late ’60s and early ’70s for their Fender, Gibson, and Rickenbacker knockoffs.
The overdrive and OD-II had a different, much more distorted, fuzzy circuit.
The TS-808 and its generation have small square chrome on/off touch-buttons. There were some TS-808s made in the 1979 period, mostly for other than USA markets, that came in a narrower box.
The classic Tube Screamer sound includes a "mid-hump," which means that the circuit accentuates frequencies between the bass and treble ranges (mid-frequencies).