Amps |
Short Circuit Guitar Preamp |
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Custom designed by Alan McCulloch this 2 channel
guitar pre-amp features a clean and an overdrive channel. The clean channel has a basic
volume, lo eq and hi eq whereas the overdrive channel has gain, volume, master volume, bass,
middle, treble and hi controls.
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Preamp circuit diagram |
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Short Circuit Power Amp |
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Custom designed by Alan McCulloch this 15 watt power amplifier uses 4 * 6K6GT valves and a GZ34 recifier. The
amp has 8Ω and 16Ω speaker taps.
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Mesa/Boogie Studio Preamp |
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The Mesa Boogie Studio Preamp is based on the classic Mesa Boogie Mark IIC+ amplifier, but in the popular rackmountable form of the late 1980s. It's a 2U tube preamp
and has 5 preamp tubes; 4 ECC83 (12AX7) valves and one ECC81 (12AT7) to drive the spreing reverb. It's got two switchable channels, rhythm and lead, as well as the classic
5 band graphic EQ, onboard spring reverb, a high quality effects loop, recording outs and two outputs to run to a stereo power amplifier.
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Operating Manual |
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Mesa/Boogie website |
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Mesa/Boogie Fifty/Fifty |
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The Mesa/Boogie Fifty/Fifty is a stereo valve power amp, specifically for guitar use. Made in
California it uses 6L6 valves for its two independent channels. It features volume and presence
controls for each channel and a very useful hi-lo power switch that switches it from 50 watts
to 15 watts to allow for earlier onset of valve distortion whilst recording.
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Operating Manual |
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Mesa/Boogie website |
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Stageline STA-200D |
- Class D
- Silent operation due to fanless cooling concept
- High power reserves due to generously dimensioned toroidal core transformer
- High-efficiency power amplifiers
- 3.5 mm connection with switchable sensitivity on the front panel
- 4 x RCA input
- 2 x speaker output
- 4 x terminal strip output
- 2 level controls
- Protected against short circuit, overvoltage and overtemperature
- LEDs for indicating power, overload (clip), protect and overheating
- Extra slim and robust design, 1 RS
- Power rating at 4 Ohm 2 x 125 WRMS
- Power rating at 8 Ohm 2 x 75 WRMS
- Power rating at 100 V
- Peak music power output (PMAX) 300 WMAX
- Inputs 1 V/23 KOhm (RCA)
- 90 mV-1 V (jack)
- Frequency range 20-20,000 Hz
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STA-200D Manual (0.5Mb) |
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Sugden A48 III (Now SOLD) |
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The Sugden A48 III was made in Heckmondwyke, Yorkshire, England. It is a minimalist design
featuring an input selector, mono, mute and tape monitor buttons, balance and volume. It has a
headphone socket on the fascia which is activated (speakers also muted) by a switch on
the rear.
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A48 User Manual (0.5Mb) |
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A48 Promotional literature (3.5Mb) |
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J.E. Sugden web site |
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