Surrey Electronics Surrey Electronics Ltd.
Surrey Electronics Limited

22 Downside Road
Guildford
Surrey
GU4 8PH
England

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- Stereo Disc Amplifier
1, 24 &   5.  The very best possible noise and distortion performance from vinyl. Disc 5
- 10 Outlet Distribution Amplifier 1, 2, 3 & 4. £604 10DA4 (Mk4 £490; Mk1 refitted with Mk4 electronics £250/390)
- Stereo Microphone Amplifiers Stereo Microphone Amplifier
- Frequency Shifter for Howl Reduction Box
- Stabilizer Box, Rack, Rack Stereo, 2, 3, 4 & 5. Box unbalanced £380; Box Balanced XLR £480; Rack £680, Rack Stereo £860 Stabilizer (Rack £365)
- 5Hz Fixed Shift Circuit Board 1, 2, 3, 4 & 5.  Howl reduction and cutting feedback in public address. £284 Stabilizer
- Spectrum Shifter Spectrum Shifter
- Stereo Variable Emphasis Limiter 2 & 3. £1550 SVEL3
- Broadcast Monitor Receiver 1 - modified Yaesu FRG-7700 Receiver 1
- Broadcast Monitor Receiver 2 - modified Yaesu FRG-8800.  Exceptionally low distortion in a quality monitoring AM receiver. £1529 Receiver 2 (£877)
- FRG8800 Rack Mounting Assembly £126
- PPM0
- PPM1 PPM1
- PPM2 (BBC ME12/9)
- PPM3 PPM3,7,8
- PPM5 20pin DIL hybrid.   9-35V supply at just 7mA and the most accurate and stable PPM driver ever. £49 PPM5
- Mother Boards 1 (unbalanced), 2 (balanced) & 3 (balanced plus flasher) for PPM5. MB1 £13; MB2 £21; MB3 £34 PPM5 App
- PPM6
- PPM7 (BBC ME12/9) PPM3,7,8
- PPM8 IEC Type I & DIN -50/+6dB, PPM8N Nordic -36/+9dB. £151 PPM3,7,8
- PPM9 microprocessor stereo (BBC AM20/5). PPM9
- PPM10 In-Vision PPM RGB or Genlock.  The best simulation on screen of mechanical PPM pointer dynamics PPM10
- Sum and Difference Circuit Boards for PPMs. £48
- Power Supply Boards
- Ernest Turner PPM Movements 640, 642, 643 and TWIN. (Some Ernest Turner spare parts available)
- Sifam PPM Movements 22, 32, 74A DUAL TWIN White/Yellow or 74B DUAL TWIN Red/Green.
- TWIN TWIN PPM Rack PPM9
- Stereo TWIN Meter Box.  Includes the precision PPM9 microprocessor stereo drive board (BBC AM20/5). £788 PPM9
- Peak Deviation Meter
- Peak Programme And Deviation Chart Recorders
- Advanced Active Aerial. £889 Aerial
- FM Broadcast Stereo Coder by Trevor Brook, Wireless World, April (Choice of method & oscillator stability), June (Setting up) and October (three decoders assessed, a reference decoder circuit, filters and a VHF oscillator) 1977: Original articles.
- Broadcast Stereo Coders MPX1, 2, 3 & 4 MPX4
- AM Synchronous Detector; the original September 1989 Electronics & Wireless World article by Trevor Brook, corrected: PDF.
- AM Synchronous Demodulator full construction details, circuit diagram, printed circuit board layout and front panel: PDF.
- AM Synchronous Detector: Printed circuit board 135x115mm artwork positive, Printed circuit board drilling diagram
- Dominus Stereo Disc Amplifier 3
- Dominus Moving Coil Preamplifier

- Technical report, 28 February 2014, analysis with photographs: TOYOTA AVENSIS ELECTRONIC PARKING BRAKE SYSTEM (EPB) FAILURES.


A few broadcasting stories are at Radio Oddities.




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