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Thread: montesquieu's STA100

  1. #1
    Join Date: Apr 2012

    Location: South West of England

    Posts: 242
    I'm Will.

    Default montesquieu's STA100

    As well as some other STA100s that are quite a bit further ahead than this, montesquieu has sent in his STA100 for full restoration

    As far as original STA100s go his wasn't in too bad nick as it had previously had been serviced to a good standard, though the intention was to always have it rebuilt and improved in a few areas. While the STA100 is a good amp there are many sensible ways it can be improved in terms of reliability.

    Flying leads are visible in the 2nd pic due to output transformer development - Tom's amp was a convenient guinea pig







    Oops. This explains why one valve wasn't biasing up at all!
    Radford Revival
    www.radfordrevival.co.uk

  2. #2
    Join Date: Apr 2012

    Location: South West of England

    Posts: 242
    I'm Will.

    Default

    First thing I needed to do was strip down the amp.

    Sadly someone had punched some large holes in the chassis where the binding posts go, so this had to be rectified. Luckily I know a friendly local engineer who did me a favour here! Some plates were welded in and ground flush (it's flatter than it looks). All that is needed is holes drills for binding posts. Clearly the whole chassis will be blasted clean and powder coated, I don't think Tom would be too pleased with the current finish





    Radford Revival
    www.radfordrevival.co.uk

  3. #3
    Join Date: Feb 2013

    Location: W Lothian

    Posts: 45,998
    I'm Grant.

    Default

    na, thats fine for Tom
    Regards,
    Grant ....

    I've said it before and I'll say it again: democracy simply-doesn't-work
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    OPPO BDP-103D DARBEE - JBE SERIES 3/B&O SP1/EMOTIVA XPS1/12V BATTERY - TWIN PRO MONOBLOCK AMPLIFIERS - XIANG SHENG DAC\PRE\HEADPHONE AMP\WE TUBED - TWIN AVANTREE OASIS CLASS 1 BLUETOOTHS - AUDIO TECHNICA ATH-MSR7 & OPPO PM-3 PLANAR HEADPHONES - WIN10 JRIVER24, SPOTIFY - SMSL M6 MINIDAC - RPI/AUDIOPHONICS/VOLUMIO/5V BATTERY - FULL RANGE TWIN TELEFUNKEN/Q ACOUSTIC BT3/CANTON SUB - P.INSPIRED MAINS REGENERATED.

  4. #4
    Join Date: Apr 2012

    Location: South West of England

    Posts: 242
    I'm Will.

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    Quote Originally Posted by struth View Post
    na, thats fine for Tom
    Noted Should save a few quid
    Radford Revival
    www.radfordrevival.co.uk

  5. #5
    Join Date: Feb 2010

    Location: Berkshire, UK

    Posts: 3,160
    I'm Tom.

    Default

    Quote Originally Posted by struth View Post
    na, thats fine for Tom
    Cheeky bugger.

    Nice to see it all coming together Will.
    Main: Speakers 'RFC' Tannoy Canterburys / custom crossovers; Amp - Radford STA100; Pre EAR 912; Vinyl: Thorens TD124 MkII + Ikeda IT345-CR1 / Ikeda IT-407 tonearms; Cartridges Stereo - Miyajima Madake, Ortofon SPU Royal N, Ikeda 9C III, SAEC/Excel C3; Mono - Miyajimas - Zero 0.7, Premium 1.0, Sonovox MC-4 1.0, Edison '78' 4.0 conical, and Shure M44 strapped for mono with several Expert Stylus conicals for different eras of 78s; Phono stage and SUT from EAR 912; Esoteric Sound Re-Equalizer for equalisation of early mono and 78, switchable in from tape loop; Digital: Audio Note CDT2/II transport, heavily modded AN Kit DAC + Mutec MC3+USB.

    Study: Speakers - Tannoy DC6; Amp: Pass Aleph 'Mini'; preamp - Firebottle custom; Vinyl: Garrard 401 with AT1503 tonearm and vintage Ortofon SL-15e with matching Ortofon 2-15k SUT; Phono Stage: Firebottle Plus; Digital - Trichord Genesis III CDP + Arcam rBlink; Schiit Multibit DAC.

  6. #6
    Join Date: Feb 2010

    Location: Berkshire, UK

    Posts: 3,160
    I'm Tom.

    Default

    Main: Speakers 'RFC' Tannoy Canterburys / custom crossovers; Amp - Radford STA100; Pre EAR 912; Vinyl: Thorens TD124 MkII + Ikeda IT345-CR1 / Ikeda IT-407 tonearms; Cartridges Stereo - Miyajima Madake, Ortofon SPU Royal N, Ikeda 9C III, SAEC/Excel C3; Mono - Miyajimas - Zero 0.7, Premium 1.0, Sonovox MC-4 1.0, Edison '78' 4.0 conical, and Shure M44 strapped for mono with several Expert Stylus conicals for different eras of 78s; Phono stage and SUT from EAR 912; Esoteric Sound Re-Equalizer for equalisation of early mono and 78, switchable in from tape loop; Digital: Audio Note CDT2/II transport, heavily modded AN Kit DAC + Mutec MC3+USB.

    Study: Speakers - Tannoy DC6; Amp: Pass Aleph 'Mini'; preamp - Firebottle custom; Vinyl: Garrard 401 with AT1503 tonearm and vintage Ortofon SL-15e with matching Ortofon 2-15k SUT; Phono Stage: Firebottle Plus; Digital - Trichord Genesis III CDP + Arcam rBlink; Schiit Multibit DAC.

  7. #7
    Join Date: Dec 2015

    Location: Alicante. Spain.

    Posts: 1,700
    I'm Adrian.

    Default

    Quote Originally Posted by montesquieu View Post
    Someone's gonna be very happy. Looking good Tom.
    Technics SP10 mk2
    Jan Allaerts MC 1 Boron mk1 cart
    Miyajima Shilabe cart
    Hashimoto HM-X SUT
    Siggwan (gimballed not unipivot) Cocobola 12"
    Aurorasound Vida LCR Phonostage
    The Truth linestage
    Dave Slagle Autoformer Volume Controller
    Cary 805c SET amps
    Audio Note ANe-SPX speakers
    Townshend Isolda speaker cables
    Cardas Golden Presence interconnects

  8. #8
    Join Date: Apr 2012

    Location: South West of England

    Posts: 242
    I'm Will.

    Default

    Random progress pics



























    Radford Revival
    www.radfordrevival.co.uk

  9. #9
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 36,170
    I'm Geoff.

    Default

    Looking very good!

  10. #10
    Join Date: Feb 2010

    Location: Berkshire, UK

    Posts: 3,160
    I'm Tom.

    Default

    Looking forward to this
    Main: Speakers 'RFC' Tannoy Canterburys / custom crossovers; Amp - Radford STA100; Pre EAR 912; Vinyl: Thorens TD124 MkII + Ikeda IT345-CR1 / Ikeda IT-407 tonearms; Cartridges Stereo - Miyajima Madake, Ortofon SPU Royal N, Ikeda 9C III, SAEC/Excel C3; Mono - Miyajimas - Zero 0.7, Premium 1.0, Sonovox MC-4 1.0, Edison '78' 4.0 conical, and Shure M44 strapped for mono with several Expert Stylus conicals for different eras of 78s; Phono stage and SUT from EAR 912; Esoteric Sound Re-Equalizer for equalisation of early mono and 78, switchable in from tape loop; Digital: Audio Note CDT2/II transport, heavily modded AN Kit DAC + Mutec MC3+USB.

    Study: Speakers - Tannoy DC6; Amp: Pass Aleph 'Mini'; preamp - Firebottle custom; Vinyl: Garrard 401 with AT1503 tonearm and vintage Ortofon SL-15e with matching Ortofon 2-15k SUT; Phono Stage: Firebottle Plus; Digital - Trichord Genesis III CDP + Arcam rBlink; Schiit Multibit DAC.

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