The Goot TQ-77 is a professional-grade, dual-power soldering iron manufactured by Taiyo Electric in Japan. Known for its ergonomic pistol-grip design, it features a unique "Quick Heat" function that allows the user to switch between a standard idle temperature and a high-power burst for heavy-duty soldering tasks.

Specifications

• Model: TQ-77 (Gun Type)
• Voltage: 220V–240V AC, 50/60Hz
• Power Consumption:
  • Low (Normal): 20W
  • High (Trigger Pressed): 200W
• Heater: High-efficiency Ceramic Heater
• Insulation Resistance: > 100M

Features

• Two-Stage Power System: Operates at a steady 20W for precision electronic work. By pulling the trigger, the power increases to 200W for approximately 10–20 seconds, allowing for fast heat-up or soldering of larger terminals and connectors.
• Ceramic Heating Element: Provides rapid thermal recovery and superior insulation compared to traditional nichrome heaters.
• Ergonomic Pistol Grip: Designed to reduce hand fatigue during long soldering sessions and provide better control over the tip placement.
• Silicone High-Temperature Cord: The iron is equipped with a flexible, heat-resistant cable to prevent accidental melting if it touches the iron’s barrel.
• Heat-Resistant Cap: Includes a protective cap that allows the tool to be stored safely even while the tip is still warm.

Usage Guidelines

1. Normal Mode: Plug the iron in and wait about 1 minute. It will maintain a stable 20W, ideal for PCB components and delicate ICs.
2. Boost Mode: Press and hold the trigger to engage the 200W mode. This should be used sparingly (maximum 30 seconds at a time) to prevent overheating the ceramic element or damaging the solder pads.
3. Tip Maintenance: Use a damp sponge or brass wire cleaner to keep the tip bright. Always "tin" the tip with a small amount of solder before turning the unit off to prevent oxidation.

Common Applications

• Electronic Repair: Ideal for technicians who need to switch between small SMD components and larger through-hole parts like capacitors.
• Field Service: The fast heat-up time makes it excellent for on-site repairs where time is limited.
• Hobbyist Projects: A versatile "all-in-one" iron for those who work on both RC electronics and standard electrical wiring.

Replacement Parts

• Replacement Heater: TQ-77H
• Replacement Tips: TQ-77RT series (available in various shapes including Chisel, Pointed, and Beveled)
• Heater Cover: TQ-77NUT

Safety Note: The "High" power mode generates significant heat very quickly. Never leave the trigger depressed indefinitely, and always place the iron on a dedicated stand when not in use to prevent fire hazards.