Proton 301

eBay

Vintage Proton Model 300 AM/FM Stereo Radio, and Proton 301 Bi-Amplified Speaker $110 Feb 12, 2026

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PROTON Model 301 Bi-Amplified Loudspeaker Power Rating 100 Watt 120V 60Hz TESTED $80 Jan 21, 2026

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Proton 300 Bi-Amplified AM/FM Radio Stereo System w/ 301 Speaker Vintage $132 Jan 13, 2026

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PROTON 300 AM/FM RADIO W/ ANTENNA Hi-fi RECEIVER DIGITAL & 301 Speakers TESTED $225 Dec 22, 2025

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Proton 301 BI-Amplified Loudspeaker Pair - Tested Working $139 Dec 17, 2025

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Proton 301 Bi-Amplified Loudspeaker 100 Watt 120V 60Hz Untested AS IS $49 Dec 12, 2025

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PROTON Model 301 Companion Bi-Amplified Loudspeaker 100w 120V 60Hz NOT WORKING $39 Nov 30, 2025

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Proton Model P301R Vintage Bi Amplified Loudspeaker 100W 120V 60Hz $99 Nov 12, 2025

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PROTON Model 301 Bi-Amplified Loudspeaker Power Rating 100 Watt 120V 60Hz $62 Nov 12, 2025

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PROTON 301 Radio Grill Custom Made Self Stick Logo Badge 35mm(1.37")X6mm(0.23") $6 Oct 14, 2025

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PROTON 300 AM/FM STEREO RADIO WITH PROTON 301 BI-AMPLIFIED LOUDSPEAKER - *READ $139 Oct 13, 2025

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Proton 301 BI-Amplified Loudspeaker Black $84 Oct 2, 2025

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Proton 301 Speaker Service Manual Original $29 Aug 28, 2025

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PROTON 301 Radio Grill Badge Custom Made Self Stick 35mm(1.37")X6mm(0.23") $3 Dec 30, 2024

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Proton 300 AM/FM Stereo with Aux + 301 Amplified Stereo Speaker $149 Jul 29, 2024

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PROTON 300 AM/FM STEREO RADIO WITH PROTON 301 BI-AMPLIFIED LOUDSPEAKER $199 Oct 22, 2022

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Proton 301 service manual original repair book bi-amp powered speaker $49 Dec 16, 2021