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Proton RS-420

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Portable AM/FM stereo radio with battery operation and external antenna connectivity

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eBay

*READ* Proton RS-420 Stereo Clock Radio Alarm AM FM Vintage Retro 1990 AS-IS $21 Jul 23, 2025

eBay

VTG WORKING Proton RS 420 Stereo Clock Radio NEW IN BOX $99 Apr 13, 2025

eBay

Proton RS-420 Stereo Clock Radio Alarm AM FM Vintage Retro 1989 Tested Works $40 Feb 28, 2025

eBay

Proton RS-420 Stereo Clock Radio Alarm AM FM Vintage Retro 1989 Tested Works $39 Oct 26, 2024

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