Dating the pot will get you in the ball park but those pots could have been sitting around for a long time before they made their way into a pedal. From Analogman's web site: The easiest way to date pedals is the same way you date some guitars and amps - by the POT CODES. How To Install Kdevelop On Redhat Version. EH, MXR, and most US made effects used pots with EIA date codes on them.

They usually start with 137 which is the manufacturer (137 = CTS), then the next digits are the year and week. For example, 137 7903 would be a CTS pot, made in the 3rd week of 1979. Sometimes there are only 6 digits, for example 304731 would be 304 (stackpole) 7=1947 or 1957, 31st week. You can also date speakers this way! Free Video Editor No Watermark Download more. Actualizar Software Alcatel Ot 606 Software. Other manufacturer codes are: • 106: Allen Bradley • 134: Centralab • 137: CTS • 140: Clarostat • 220: Jensen (speakers) • 304: Stackpole • 328: Utah/Oxford speakers • 381: Bourns • 465: Oxford speakers • 285: Rola • 391: Altec-Lansing • 649: Electro-voice • 1098: Pyle • 67: Eminence On many Japanese effects there are no date codes on the pots, but there are usually date codes on the chips and sometimes on the capacitors. So check them carefully!