Trouble with Conrad Johnson PV12A
Morning all,
Recently I acquired a Conrad Johnson PV12A (the one with phono stage). The unit is around 11 years of age.
All good until recently.
It started popping and hissing and 'spurting' on one channel... The 'funny noises' were not affected by volume though! Always the same pretty much...
First instinct was that the tubes or one tube was on its way out.
Swapped them for new ones (Mullard NOS 12au7), and to my surprise the 'funny' noises had swapped sides, now coming from the opposite channel !?!
I am a bit confused really...
So does anyone has a clue of what is happening...
And also any recommendations as to who to contact re: Servicing a tube preamp in the London area?
Many thanks
looking forward reading your answers!
F
Francois, Bergerac, France
Source component/s:
Musical Fidelity M1 Dac, Allo Digi One, Sony SCD-XE800, AVID Ingenium Twin arm, Audio Note Arm One, Groovemaster II 12in, Audio Note IQ3 MM, Denon DL103R MC, Croft Basic 25, TQ Iridium Phonostage, Puresound T10 Stepup Transformer, Zavfino majestic tonearm cable
Amplification:
Audio Note OTO PP, Dussun V6i
Loudspeakers:
Triangle Comete ES, Klispch RP600M
Cables/stands:
Quadraspire, Belden 9497