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More information about the unique amplifiers made by Magnatone and Valco
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38-Watt Peak Power Pro Amplifier,
with Exclusive Variable Vibrato and Transistorized Reverb "The finest amplifier money can buy." True F.M. Vibrato (Pat.), High Stroke Piston Acoustic Drive Compression Chamber, Dual Foot Controls, Silent Contour Switch, 2 Independent Input Channels.
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The Custom M-10 differs from the M-10A in that the M-10 doesn't have the "tone boost" switch, and has a transistor circuit for reverb recovery. The M10 has 2 input channels (each with high and low gain), a stereo input, and "Contour" and "Tone" controls for each channel. Preamp tubes are 12AX7/7025 and the mono vibrato uses a 12AU7. Reverb drive is obtained with both sides of a 12AU7 but the return is amplified by a 2N2614 transistor. Another 12AU7 for the Phase inverter and two 7189A power tubes. My schematic shows a 8", 16 ohm speaker and a 3" midrange tweeter. The M-10A has a single 12" speaker and no tweeter. It came with a 2-button Foot switch. The original catalog list price was $380.00
Approx. 35 watts
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