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Thread: Radford TT100 - the saga begins...?

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  1. #1
    Join Date: Sep 2012

    Location: London

    Posts: 349
    I'm Nick.

    Default Radford TT100 - the saga begins...?

    I took delivery of a Radford TT100 hybrid solid-state/valve amp today.

    The last amp Radford made, solid state (FETs) inputs, valve output stage with 4x KT88s. Rated at 100w pc.

    The price was low enough to tempt me to take a punt on it, sight unseen. The guy who sold it to me claims (!) he tested it and had it working before it was shipped to me, but tbh I daren't turn it on to test it before having it thoroughly checked over.

    As you can see it looks very much in, shall we say, original vintage condition. It even has a funky old round-pin 3-prong plug on it. No idea what to do with that. The amp looks like it might have been recovered from a house clearance or something like that.

    Sitting in the back are 4 original GEC Gold Lion KT88s, that have probably been in it since it was new! Most likely completely shot, I would guess.

    Sadly the arrangements I made to have to shipped to me went horribly wrong - I booked a guy to collect it by hand and deliver it door-to-door by van. This guy then decided to book a courier for the job, without telling me, and pocket the difference as profit. What a scam. So the amp arrived by commercial courier, which is exactly what I wanted to avoid, and who knows how it was treated on the way? I can hear something loose rattling round inside the case. No idea what - best case scenario it's just a loose screw.

    This kind of feels like it could be the start of a saga... I won't know until it gets checked over. It'll go off to David Coe at AD Audio for a thorough going over and I will report back after that.

    IMG_0478w.jpgIMG_0480w.jpgIMG_0481w.jpgIMG_0482w.jpgIMG_0483w.jpg

  2. #2
    Join Date: Mar 2017

    Location: London N2

    Posts: 998
    I'm Edward.

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    I'm surprised about the claim of it being tested as the tester presumably had to remove the old style plug to test. Why put it back on knowing it will not work.

    Shocking behaviour on the part of the so called personal courier.

    Hopefully David Coe will be able to bring it up without too much trouble and work.

    I think the circuit diagram is on the Radford Revival website.



    Via Tapatalk
    Source: Tidal/Roon
    DAC: Metrum HEX NOS

    Amp: Sugden Masterclass 2018 spec, Radford Revival STA25,
    Speakers: Tannoy Eaton


  3. #3
    Join Date: Sep 2012

    Location: London

    Posts: 349
    I'm Nick.

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    I suspect the claim of testing prior to shipping to be untrue!

  4. #4
    Join Date: Feb 2010

    Location: Berkshire, UK

    Posts: 3,249
    I'm Tom.

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    Quote Originally Posted by Edwardlon View Post
    I'm surprised about the claim of it being tested as the tester presumably had to remove the old style plug to test. Why put it back on knowing it will not work.

    Shocking behaviour on the part of the so called personal courier.

    Hopefully David Coe will be able to bring it up without too much trouble and work.

    I think the circuit diagram is on the Radford Revival website.



    Via Tapatalk
    I heard that David had just acquired some Tannoys, for which this amp should be just perfect ... Nick might be lucky to get it back
    Main: Speakers 'RFC' Tannoy Canterburys / custom crossovers with Tannoy ST25 supertweeters; Amp - Radford STA100; Pre EAR 912; Vinyl: Thorens TD124 MkII + Ikeda IT345-CR1 9 inch and Ikeda IT-407 12 inch tonearms; Cartridges Stereo - Miyajima Madake, Miyajima Takumi, Ikeda 9TT, SAEC/Excel C3; Mono - Miyajimas - Zero 0.7, Premium 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 + Miyajima ETR-Mono SUT; 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'; tube preamp - Gate Audio tube; Vinyl: Garrard 401 with AT1503 Mk I tonearm and vintage Ortofon SL-15e with matching Ortofon 2-15k SUT; Phono Stage from Gate Audio preamp; Digital - Trichord Genesis III CDP + Arcam rBlink.

  5. #5
    Join Date: Mar 2017

    Location: London N2

    Posts: 998
    I'm Edward.

    Default

    Quote Originally Posted by montesquieu View Post
    I heard that David had just acquired some Tannoys, for which this amp should be just perfect ... Nick might be lucky to get it back
    Yes indeed and I've seen a pic of said Tannoys. somewhat of a bargain I'd say.

    Via Tapatalk
    Source: Tidal/Roon
    DAC: Metrum HEX NOS

    Amp: Sugden Masterclass 2018 spec, Radford Revival STA25,
    Speakers: Tannoy Eaton


  6. #6
    Join Date: Sep 2012

    Location: London

    Posts: 349
    I'm Nick.

    Default

    Oh - what Tannoys did David get? I must ask him about that.

    (I love my RFC Cheviots and just got another pair of 12" HPDs to put into custom cabs to use as recording studio monitors.)

  7. #7
    Join Date: Mar 2016

    Location: Barnet, london UK

    Posts: 1,057
    I'm Adam.

    Default

    Quote Originally Posted by nickbaba View Post
    Oh - what Tannoys did David get? I must ask him about that.

    (I love my RFC Cheviots and just got another pair of 12" HPDs to put into custom cabs to use as recording studio monitors.)
    Canterbury SE
    "lack of passion is fatal"

    Vinyl: Garrard 401, Russ Collinson 'shindo style' plinth / Tenuto gun metal mat / SME-3012 j7 rewired / audio-technica ATP-12T - phonomac modified / Ortofon Vintage SPU GTE /Shure M3D / Ortofon Royal N / Cartridge Man Music Master with isolator / Miyajima Zero B 0.7mil mono / Vintage GE VRII mono / Amps: Radford STA25 mk3 / David Coe AD Audio 'Satchmo' pre & phono / Hashimoto HM-7 SUT / Digital: SW1X Audio Design DAC 1 signature / Roon / Tidal Speakers: Tannoy 12" MGs' in RFC custom 'Rutland' Cabinets with RFC custom crossovers / Cables: Duelund DCA16GA tinned copper / Kimber 12TC / SW1X Audio Design USB-SPdif / Duelund DCA20GA interconnects / SW1X Audio SPDIF Aero 6 / Mains Power Conditioner / Box Furniture sapele rack

  8. #8
    Join Date: Feb 2010

    Location: Berkshire, UK

    Posts: 3,249
    I'm Tom.

    Default

    I think your instincts are spot on - that plug looks like it belongs in a museum. Definitely have it checked out.

    I've heard of that sort of scam with these sorts of informal couriers - I was lucky enough to get a pair of Eatons hand-delivered from Glasgow in perfect order but I checked with them what the arrangements would be first. Mind you they took two weeks longer than promised but better that than trashed.

    Will at Radford Revival has all the bits for these if it needs anything.
    Main: Speakers 'RFC' Tannoy Canterburys / custom crossovers with Tannoy ST25 supertweeters; Amp - Radford STA100; Pre EAR 912; Vinyl: Thorens TD124 MkII + Ikeda IT345-CR1 9 inch and Ikeda IT-407 12 inch tonearms; Cartridges Stereo - Miyajima Madake, Miyajima Takumi, Ikeda 9TT, SAEC/Excel C3; Mono - Miyajimas - Zero 0.7, Premium 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 + Miyajima ETR-Mono SUT; 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'; tube preamp - Gate Audio tube; Vinyl: Garrard 401 with AT1503 Mk I tonearm and vintage Ortofon SL-15e with matching Ortofon 2-15k SUT; Phono Stage from Gate Audio preamp; Digital - Trichord Genesis III CDP + Arcam rBlink.

  9. #9
    Join Date: Mar 2017

    Location: London N2

    Posts: 998
    I'm Edward.

    Default

    I'd be tempted to open it up and have a look at the guts. Hopefully the loose item is just a stray screw or something like that. Also you can see if any obvious blown caps etc.

    Via Tapatalk
    Source: Tidal/Roon
    DAC: Metrum HEX NOS

    Amp: Sugden Masterclass 2018 spec, Radford Revival STA25,
    Speakers: Tannoy Eaton


  10. #10
    Join Date: Aug 2008

    Location: Suffolk, UK

    Posts: 1,308
    I'm Paul.

    Default

    Nice one. I dont know what you paid for it but it doesn't look like it will be too hard to get it running like new. You never know, the KT88 might be worth testing, if you know someone with a valve tester. They may be OK and possibly worth something on ebay.
    ~Paul~

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