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Published byWillis Buck Baldwin Modified over 9 years ago
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Webcor 14X275 1 K Amplifier By: Michael R. Stiteler Mike@Stiteler.net Photos Wiring Diagram/Parts List Schematic
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$29.99 Amp! Webcor reel to reel amplifier. Purchased for $25
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$29.99 Amp! Now officially a guitar amplifier, after adding a freakishly powerful 140 Watt Technics Speaker (purchased for $4.99 at thrift store). Amp produces about 10 watts. I use my “JamPlug” as a preamp, as this amp needs larger signal than pickups produce. If you count the JamPlug, the amp cost about $80. I can turn the guitar signal all the way up, JamPlug signal down, and get a beautiful overdriven distortion…classic tube sound!
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RMC.01 1400V 115Vac 253V 500V 253V A B 6.3Vac 270k 1/2W 270 2W 22k 1/2W X5F RMC JL.001 20% 1000 5W 10% T1 0.05 µ f 400V T2 2.7k 1/4W 220k 1/2W 4.7k 1/4W 220k 1/2W 5 Caps (1 = multi-section 3x40 µf ) 0.01 µf, 1400V (ceramic) 0.001 µf, 400V? (ceramic) 2 x 0.05 µf 400V 3 x 40 µf (400V, 350V, 25V) Electrolytic (multi-section canister) 2 Transformers 1 Power Transformer (T1) 1 Audio Transformer (T2) 4 tubes 1 x 5Y3 1 x 12AU7 (12AX7 used for my amp) 2 x 12AB5 9 Resistors (1 Ceramic, 8 Carbon); all 10%, 0.5W unless noted 1000 5W Ceramic 270 2W 270k 22k 2 x 220k 2 x 4.7k 1/4W 2.7k 1/4W 40 µf 400V 40 µf 350V 40 µf 25V C 12AB5 12AU7 5Y3
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Schematic of Similar Amp
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