FS: Tron Nucleus Phono Stage (MC)

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For sale is my Tron Nucleus Phono Stage in black 240V.

IMG_1965
IMG_19653024×2926 1.93 MB

For those that aren’t aware of the model, it was Graham Tricker’s state of the art phono stage at the time and sold for about £3500. Unlike his later models this is all point to point wired with no circuit boards. Not many were made, maybe due to being very labour intensive. I am the second owner from new.

This is set for 100 ohm, suitable for most cartridges. The NOS valves are a matched pair of original Telefunken ECC83’s, diamond based etc; a vintage Mullard yellow label ECF85.

This unit has been significantly upgraded with Jupiter 1 uF 100v copper foil, paper & wax capacitors, Shinkoh & Charcroft Z film resistors and gold wiring by Graeme @Valvebloke for its previous owner.

No box so collection or meet up in the West Mids area would be best, or Meat-Van if this can be arranged.

Yours for £1350.

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If you’re interested make me an offer by pm.

Will also chuck £50 in the AA kitty if it sells on here.

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How much gain does this have - presumably MM only?

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It is MC set at 100 ohm.

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Yes, I now see the title :person_facepalming: :man_facepalming: :woman_facepalming: I really should stay off the interwebs until I’m somewhat awake…

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There are inboard SUTs. I can dig out the details and some gain info when I get home if you’re interested.

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Thanks mate, but having spaffed on power amps, I’m out, sadly.

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Any interest/ offers?

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Bump

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Suspect not as I have a IO, but would be interesting to know what the internal SUT ratio’s are.

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@Valvebloke can you possibly advise if you get a minute?

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The notes I made say the SUTs are 1:10 i.e. 20dB of gain. The following stages add a little over 48dB of gain at 1kHz, so at that frequency the box needs 375uV input to deliver 1V output.

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Reduced to £1225.

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SOLD.

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