Fat Boy 1 Driving 2 **2SC2879** Amplifier (Pre-Owned)

Fat Boy Amplifier — 1 Driver, 2 Final 2SC2879 Transistors

This is a pre-owned Fat Boy linear amplifier built around a classic 1-driving-2 configuration using a pair of 2SC2879 final transistors — one of the most respected output transistors in CB and 10-meter amplifier builds. If you know, you know.

The 2SC2879 is legendary for its efficiency, durability, and clean power output. A 1-driving-2 setup gives you solid drive headroom with the finals doing the heavy lifting, making this amp a reliable performer on SSB or AM when set up right.

Amplifier Specs & Configuration

• Configuration: 1 driver transistor driving 2 final 2SC2879 transistors
• Output transistors: 2SC2879 (genuine or equivalent)
• Suitable for CB radio and 10-meter amateur radio use
• Pre-owned unit — inspected and confirmed operational

Radio Drive Requirements

To operate this amplifier correctly, your radio needs to produce:

• 2–3 watts dead key (unmodulated carrier)
• 8–15 watts PEP (Peak Envelope Power) on swing

Running too much drive will stress the finals. Most stock CB radios fall right in this range — if yours has been modified for higher output, back it down before keying through this amp.

What to Know Before You Buy

This amplifier is sold as-is for use in licensed amateur radio applications or legal CB use within FCC Part 95 guidelines. Buyers are responsible for ensuring compliance with applicable regulations in their jurisdiction.

Pre-owned gear at TekShack is tested for functionality. Cosmetic wear may be present. What you're getting is a working amp with proven transistors — not a shelf queen.