Webcor 14X275 1 K Amplifier

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Webcor 14X275 1 K Amplifier

• Photos
• Wiring Diagram/Parts List
• Schematic

• By
• Michael R. Stiteler
• Mike_at_Stiteler.net

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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 distortionclassic tube
sound!
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6.3Vac
T1
253V
500V
T2
X5FRMC JL.001 20
115Vac
12AB5
RMC.011400V
2.7k? 1/4W
253V
270k? 1/2W
220k? 1/2W
4.7k? 1/4W
0.05 µf 400V
0.05 µf 400V
40 µf 400V
40 µf 25V
A
C
40 µf 350V
220k? 1/2W
B
5Y3
4.7k? 1/4W
12AU7

• 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-se
  ction 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

12AB5
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Schematic of Similar Amp