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First Watt B1

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eBay

Nelson Pass/First Watt F6 Clone Power Amplifier and B1 Buffered volume control. £1,022 Oct 9, 2025

eBay

Ampeg SVT 450H, B1RE, B2RE and First Watt F5 Turbo V2 - IRFP240/IRFP9240 MOSFETs $40 Aug 24, 2022

eBay

Ampeg SVT 3 PRO, 450H, B1RE, B2RE & First Watt F5 TurboV2 - IRFP240/9240 MOSFETs $40 Jun 20, 2022

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