PedalBro

Overdrive · Formula B

Formula B That Screamer

The Formula B That Screamer is an overdrive pedal offering four distinct modes based on classic Tube Screamer designs, powered by a JRC4558D chip.

  • 9V DC · center −
  • 10 mA
  • Analog
New
from $232.49
Used (asking)
No listings yet

The rundown

Highlights

  • Four selectable modes derived from TS808, TS9, and TS10 circuits
  • Compact size at 66 x 126 mm
  • Three main controls: Drive, Tone, and Level plus Mode switch
  • Runs on 9V DC with low current draw of 10 mA
  • Currently in production

Best for

Guitarists seeking a Tube Screamer-style overdrive with multiple voicing options in a compact format.

Quick facts

Power
9V DC
Current draw
10 mA
Polarity
Center negative
Dimensions
66 × 126 mm
Controls
Drive, Tone, Level, Mode switch
Status
In production

Where to buy Formula B That Screamer

$232.49 lowest new price · Reverb

Current offers
SellerConditionPriceLink
ReverbNew$232.49View
ReverbNew$232.49View
ReverbNew$234.41View
ReverbNew$239View
ReverbNew$244.61View

Prices last checked 22 hours ago. Links to sellers are affiliate links.

Frequently asked questions

What power supply does the That Screamer require?

The Formula B That Screamer runs on a 9V DC supply with center-negative polarity and draws 10 mA.

How many overdrive modes does this pedal have?

The That Screamer offers four selectable modes based on the TS808, TS9, and TS10 Tube Screamer designs.

What controls are on the That Screamer?

The That Screamer has Drive, Tone, and Level controls along with a Mode switch for selecting between its four available voices.

Similar pedals

Same type, similar features.

Specs from pedalfilter. Summary written by PedalBro from those specs and public descriptions.

Page last updated September 29, 2026.