Limited Stock

Motorola MRF475 NPN RF Power Transistor 12W 30MHz CB Radio Final RF Parts Stock Bench Tested

RF Transistors and Finals • SKU RFB00489

$24.95

Genuine Motorola MRF475 NPN silicon RF power transistor sourced from RF Parts and individually bench tested by RF Boneyard. The MRF475 was developed specifically for HF and CB communications transmitter service through approximately 30 MHz and is rated around 12 watts PEP output under its specified RF operating conditions. It belongs to the classic generation of Motorola RF power semiconductors widely used by radio technicians during the peak CB-radio service era. The MRF475 became especially important as original Japanese CB finals became harder to source because it has long been used as a replacement or substitute candidate for devices including the 2SC1969 and 2SC2312. The 2SC1969 was famously used as the RF final in radios such as the Cobra 2000 GTL, making the MRF475 particularly useful for technicians restoring classic Cobra, Uniden-platform, and related 27 MHz equipment. Historical service references also associate the MRF475 with replacement applications for other older CB RF output devices including the 2SC1307. Unlike questionable modern marketplace replacements, this example carries the original Motorola marking and was sourced through RF Parts, a long-established supplier of RF power semiconductors. Device is marked MRF475 with Motorola logo and code 9409. Package is a TO-220-style RF power configuration with collector-connected mounting tab. This exact transistor has been individually tested and identified correctly as an NPN silicon BJT with zero measurable collector leakage during the RF Boneyard bench test. Because vintage CB transmitters vary in bias, drive level, neutralization, heatsinking, and circuit configuration, installation should be performed by a knowledgeable radio technician and the intended radio schematic should be checked before substitution.