Pioneer PL12D,
Michell Transcriptor Hydraulic Reference, SME 3009.S2 or Grace 909, Ortofon or Linn PU.,
Linn LP12/Ittik (Mk. I) and AudioNote IO
AudioNote M7 (1981),
Tresham (Pre-NVA) pre/power combo (200 WPC),
Carver M400a,
Hafler 60 watt power,
Leak Delta 30,
Sugden A21 not sure which version, has no model name or number,
Nakamichi 410 pre,
Musical Fidelity A1 Collector's Edition (No.6 of 20),
Lecson AP1x power,
2 x Pioneer A400 (including the very first one made),
very old Quad II, 22,FM and AM tuners (in poor condition, bought from the Bassist of the Hollies),
Sony STR1200DES,
Pioneer VSX9900,
Head Transformer (Tim de Paravacini)
Ortofon T-3 transformer,
Pioneer SA-1000.
Pioneer TX-600 tuner,
Luxman T-110,
the above mentioned valve units from Quad.
Stax SR5/SRD-7,
Beyer DT-100,
Pioneer SE-M10,
some very old Koss ESP9 and ESP6.
Pioneer CT-A9, plus a much later double deck CTW something.
Marantz CD-60 masively modified according to Ken Ishiwata's suggestions, Pioneer PD-6100,
early Sony Discman.
Musical Fidelity MC-4 (Oriiginal Martin Colloms design),
Tannoy 613,
1x Tannoy 623 centre speaker,
Tannoy ICT minis (first model),
Pioneer Prologue 4,
plus some carboot specials, Goodmans Magnum K2 and AR18.
And my current centre speaker is a bass bin/horn tweeter in a cabinet from an old cinema.