Manuals and manuscript notes for musical equipment and other devices built, owned and used by electro-acoustic musician Hugh Davies

Notes for Commission University of York, Synthesizer: Arts Council (CUYSAC)

Schematic for fuzz/phase pedal

Hugh Davies' bursary acceptance letter

Lists and schematics for Hugh Davies' studio and some of the devices

Notes on various devices including synthesizer

Schematic for fuzz/phase pedal

Notes on G36 tape recorder

Schematics for 4-channel switching unit, Photocell mixer, and 1 unidentified device

Budget for equipment

Parts list for Andrew Photocell Osc

Schematic for studio setup

Notes on parts and stockists

Diagram for Wheatstone Bridge circuit

Descriptions of photographs

List of cables

Mullard LP filter: calculations, circuit diagrams

Notes: comparing filters

Notes on Chiltmead oscillator

Notes entitled 'Live EM grant'

Notes on Hewlett-Packard Audio Signal Generator model 205AG

Schematic titled 'disc output stage'

Mullard HP filter: table, basic circuit, calculations

Letter from Hugh Davies to David Reynolds

List of notes entitled: 'DIY Instrs'

Mullard LP filter: calculations, table and circuit diagram

Notes on photographs of Hugh Davies' instruments

Notes: Imitation Maihak Filter

Notes for a light-sound sculpture

Notes on Armstrong amp

Brief notes on TV valves

Notes on various filters, including Mullard, Moog and Maihak filters

Parts list for octave equaliser

Schematic for 4-channel photocell-divider

Notes enitled: 'HD synthesizer'

Notes on Electronic Music Synthesizer

Notes entitled: 'intercom'

Mullard HP filter: notes

Mullard LP filter: calculations and table

Mullard LP filter: notes

Electronic Music Synthesizer parts list

Logs for filters

Notes enitled: 'Other projects'

Notes and rough schematic for capacitor testing unit

Rough plan entitled: 'HD studio patchboard & 19" rack'

Parts list

Calculations, likely for Mullard filter

Notes enitled: 'Light/Sound Project, Hornsey'

Miscellaneous notes

List of measurements