PCB Grinder’s Classic Tube EQ (CTQ) is based on Jakob Erland’s take on the classic Pultec EQP1A- simplified with a one-tube makeup gain stage, but maintaining the original controls and inductor-capacitor based filtering. This kit includes all components except power toroid and enclosure.

CTQ Features:

• High cut/boost/Q, low cut/boost
• Single-ended tube makeup gain section
• Lundahl 5402 input and output transformers

Price:

• €240 for component kit
• €55 for enclosure
• €45 for power toroid (EU only)

More Information:

• Available from PCB Grinder
• Circuit information available from Gyraf Audio