TS7 Tube Screamer to TS808 Specs
Excerpted from Robert Keeley's TS-7 Tone Lok Mods page. with minor additions by Ashley.
There are several interesting things about the TS7. First of all the circuit is nearly identical to the TS9. Why do I say nearly? The circuit has a Hot mode and the parts are 1/8 watt in general instead of the 1/4 watt used in the TS9. There should be little argument that the wattage of the resistor affects tone. The Hot mode switched can be set to the TS9 mode and *puff* you have a TS9. At about 1/2 the cost! Here are some other interesting things. The new TS7 comes with the re-issue JRC4558D chip. So if someone is charging you to install a JRC4558D chip in the pedal BEWARE!!!!