One of my buddies made up an external tape loop box so I can burn CD-Rs from albums and the upstairs EV-1 had a really bad channel imbalance.
Plug in the Jolida JD-9 and it's the EV-1 so to the tube tester we go.
There was an EI 12AU7 in there that failed the emissions test, popped in a Baldwin organ pull 12AU7 and problem solved.
If only everything was that easy, the hardest part was finding where I stuck the box of spare conrad-johnson tubes, that took a few hours of poking around.
EV-1 channel imbalance fixed
EV-1 channel imbalance fixed
Last edited by SteveFord on Sun Jan 02, 2022 2:13 pm, edited 1 time in total.
Re: EV-1 channel imbalance fixed
Glad it worked out with a simple (and inexpensive) fix. Love my little JD9, a very versatile phono preamp.
-admin
Home Theater in Member Gallery
Main stereo: ART Amplifier and ET7s2. 2nd stereo: PV-14L and MV-55. Previously Owned: PF2 preamp, Evolution 2000 Amp, PV-12AL preamp, D/A-2b Vacuum-Tube Digital Processor.
Home Theater in Member Gallery
Main stereo: ART Amplifier and ET7s2. 2nd stereo: PV-14L and MV-55. Previously Owned: PF2 preamp, Evolution 2000 Amp, PV-12AL preamp, D/A-2b Vacuum-Tube Digital Processor.
- AnotherJohnson
- Ultimate
- Posts: 5219
- Joined: Sun Apr 26, 2020 12:29 pm
- Location: Tennessee
Re: EV-1 channel imbalance fixed
That’s a very nice aspect of tube gear, that’s for sure. At home plug and play repairs.
Glad it’s working.
Glad it’s working.
It’s just stuff. I like mine. I hope you like yours. I probably like yours too.
Re: EV-1 channel imbalance fixed
Hola,
One of the things that I love that the tubes have is: the user can fix the most common problems. When a SS fails, it is not a user possibility fix, unless he or she has electronic knowledge, tools and service info. With tubes, the first thing to do when a channel fails is swap L to R tubes. This is the easiest way to find the bad tube.
Glad you could fix the problem! Congratulations!
One of the things that I love that the tubes have is: the user can fix the most common problems. When a SS fails, it is not a user possibility fix, unless he or she has electronic knowledge, tools and service info. With tubes, the first thing to do when a channel fails is swap L to R tubes. This is the easiest way to find the bad tube.
Glad you could fix the problem! Congratulations!
ML CLX BF-210 Stage X Motion 4. CJ 120SE amp ET7V2 pre, Holo May Kte Dac. Mac Pro. Power Cond. BPT Signature+ 3.5, Gaia II Feet. USB Lush^V3. Nordost SPM IC and Spk. Shun Mook, BCanto CD2 CD3. Linn LP-12/Unitrack tonearm/Denon DL103R MC.