Conrad Johnson Owners.com

A fellow in Miami, ( his friend ) bought several things, including the Alexandrias.

As I said, he was a truly audiophile. Just go to this address and you can read his posts.
https://audiophilestyle.com/forums/topi ... /#comments

Chicos, Just to say that Roch was who introduced to me the Holo brand. He had all the Spring Level 3 KTE models until I bought the Holo May KTE, and he bought it too after me and my thoughts about how really blends with Conrad Johnson. I'm going to list some of the toys that he had: 2 HSU VTF-15H MK...

Hola Chicos, My dear friend Roch Guistinianni just passed, and his system was marvelous, using a ET-5 with a LP125SA power amp with the CLX Martin Logan. He was very wealthy, and I had the chance to listen serious systems and electronics with him. He brought many different kind of speakers and elect...

Hola Bob, Congrats with your new preamp. And please don't be sorry about us, the ones that are green color skin due to the good envy.Oh yes, we would like to be owners of a such divine preamplifier. You are the user, so you know what it is doing to your new super good quality sound. As the big dog s...

right channel bias lights stay on always after outputs tubes blew in rush fuse replaced tubes and 20ohm resistor that was cracked any idea what else a bad 6550 tube would take out in the bias circuit? Hola, when an output tube Led is on, this is telling the output tube could bad, even being a fresh...

I think you are right. It is good to be safer in about 30% more of the needs regarding Amps consumption. The voltages are OK. I how you finally can have back your preamp. If the power transformer can supply more current than the needed in the circuit, you are totally safe.

Happy listening!

The Classic Sixty Two is also a great sounding power amp. The SE version comes with a special metal foil resistors, and Teflon Caps. Anyhow, you have wonderful sounding power amp too.

So it is not SE version, the SE version employs the KT-120s, or did you order it with the 6CA7/EL34s instead the KT-120s?

Wow, another year has passed...and some of us have new toys to play with...I am really enjoying my CJ goods and my system. I wish to all Merry Xmas and a very happy new 2024!!! I will be on Dec 25th (my birthday) 76! Oh dear, yes 76. I just checked my ears, the Dr told me that he was very impressed ...

Glad you made the right choice. The KT120s are very good and nice to have. I did try the KT-150s in an Audio Research power amp, and...no way. I love the KT120s, even knowing that they have less power. Gee, I really love my Classic 120SE too.

Happy listening!

Hola Paolo, Congrats with your new power amp, and I am with Severegloves. It is wise to do your best and get the ET-5, it will blend beautifully with your Classic 62SE. You can't go wrong with it. The ET-5 is a very nice and good sounding preamplifier. Of course it has the Conrad Johnson signature q...

Admin just said it: This unit is bullet proof. Also, I don't know of any issues with this particular model. Of course, a unit with over 25 years you should have a serious listening before you get it. But usually the unit will sing beautiful. Those EL34s/6CA7s tubes are well known as a crystal crispy...

Dummy load = phantom load. The right name is dummy load. Also is good to have another very important tool on hand: A Variac transformer with Amp meter.

Happy listen to all.

Even a little bit more about playing safe on tubes...they should not be turned on without any load. I use a big 4 ohms resistors...not speakers while I am servicing them. The transformers must have at least a phantom load. But for a minute or so, it is safe, specially without any input voltage. if y...

If you are trying to find a problem, the only way is turning the unit on without any connection. If you want to play safe, make a short to the RCA cable, and there will be no problem. Shorting the cable will prevent any odd noise or a possible oscillation. We are talking CJ here. If the amp is bad, ...

That's not right. You can do it without any problem. I have being servicing a lot of different brands over more than 50 years and the truth is, there is no reason why you should not do it. When turning the tube amp off, you must wait at least 1 minute before you reconnect something. Tubes are still ...

To make sure from where the hum is coming, I suggest to disconnect the RCA cable from the input of the amplifier y turn it on. Is there hum?, No?, might be the RCA cable or from the preamp to the amp. Still noise? So disconnect the inputs in the preamp a leave only a connection from the output of th...

Well said Admin. Usually that noise is coming from a small signal tube. Just swap the suspect and have a listen. It is always wise to turn off the preamp while doing the swapping. Yes I know it takes more time...this is the safer way to do this kind of job.

Hola, just thinking loud, do you have a good earth connected to your system? This might discharge the possible static electricity that it is build up to ground.

Hola Wildcat, it is a pleasure to be in contact with you. I just wanted all to know the reason why we should not use the KT-150s as a direct replacement for the KT-120s. OTOH, I did some tube rolling with my amp. My findings was that I should stick with the KT-120s. I did find more organic sound, mo...