DISASTER - Well, a bit of a problem anyway.

[DaveK]

Dave,you underestimate yourself!

Ali, Oh no I don't !!

Hi Guys,
I've been pondering, during my waking hours, what it is that I like about my rewired Techie and I think I may be able to put my finger on it (possibly )
I used to wonder what "more airy" and "more air between the notes" actually meant, bits of auidiophile jargon to impress the uninitiated, perhaps, but maybe I now understand - all is now clear, if you'll forgive me .
Basically the underlying sound appeared almost unchanged, no tonal or timbre differences that I could detect, which was reassuring 'cos I liked what I had. However I now believe that I hear more separate individual notes, the vibrato of the human voice is less blurred, as is the resonance of the decaying guitar notes and drum sounds - have I just exposed my naivete, is that actually known as 'timbre'?
Anyway, the difference is in this area and I regard it as an improvement, so I'm happy.
Cheers,

[Alex_UK]

Nice one Dave - well done! I've bought an iron, not got it out the packet yet, but intending on having a go sometime...

[Marco]

Hi Dave,

Your wiring tweakery seems to be largely a success, so well done!

I would urge you though to bring your deck to Owston where any number of expert 'solderistas' will finish the job properly, whereby I'm certain things will improve even further, due in no small part to the removal of the residual hum you're currently experiencing.

In the meantime, keep spinning tunes as that will run-in the cables and improve the sound more

Marco.

[DSJR]

Hum on one channel plus regular clicking could mean the deck isn't earthed to the arm and thus to the amp properly...

From what I've seen (and my SL150 definitely has this), there is a little terminal attached to the deck somewhere in the arm-well. This should be connected to a separate wire to the amp's earth tag. The arm earth should be separate to the signal returns/screens and should also be connected to the chassis earth point nearby, thus separating the chassis and signal earthing until they get to the amp. My Dual and many of the Thorens models with arm originally cheated by connecting the chassis earth to one of the signal screens, causing hum in many cases... certainly with the 701, using a low output mc cartridge and a transformer (thanks to Rob Holt) I get no hum with the Croft unless the trannie is too near an adjacent item (Quad FM3) and even then it's only at very high volumes..

[DaveK]

Hi Guys,
Just a quick update: this morning I unearthed (or should that be de-earthed ) the TT by disconnecting the earth pin on the power plug. The hum is now much reduced on the right channel and not present at all on the left. It is now necessary to turn the amp up so high, beyond the 1 o'clock position, to start the faintest hum, that I don't anticipate it manifesting it's self at the volumes I listen at. Even at full volume it's not as bad as it was at 12 o'clock position yesterday. I would also suspect that it may have 'always' been there 'cos I have never turned up the 'wick' since I've had the kit.
Cheers,

[Spectral Morn]

Hi Guys,
Just a quick update: this morning I unearthed (or should that be de-earthed ) the TT by disconnecting the earth pin on the power plug. The hum is now much reduced on the right channel and not present at all on the left. It is now necessary to turn the amp up so high, beyond the 1 o'clock position, to start the faintest hum, that I don't anticipate it manifesting it's self at the volumes I listen at. Even at full volume it's not as bad as it was at 12 o'clock position yesterday. I would also suspect that it may have 'always' been there 'cos I have never turned up the 'wick' since I've had the kit.
Cheers,

Nice one...well done Dave.


Regards D S D L