Search found 4565 matches

by admin
Wed Feb 14, 2024 7:51 am
Forum: Troubleshooting/problems/manuals/schematics
Topic: Premier 16ls Transformer Replacement
Replies: 12
Views: 6743

Re: Premier 16ls Transformer Replacement

Good investigation work. I'm not surprised that the same transformer is being used in multiple units. If you find something you like, you stick with it. Also makes stocking extra components easier as your total parts list is smaller.
by admin
Tue Feb 13, 2024 6:57 am
Forum: Preamps
Topic: PV-12 help needed
Replies: 17
Views: 1878

Re: PV-12 help needed

If you think the resistors are not functioning properly, really the only way is to pull them and measure their resistance. My general rule is that if I see any visual abnormality (whether be it resistor, cap, etc...) such as burn marks, deformation, discoloration, I tend to replace them. These kids ...
by admin
Sat Feb 10, 2024 6:57 pm
Forum: CJO Feedback, Suggestions and Report Site Problems
Topic: Cannot find member details
Replies: 4
Views: 243

Re: Cannot find member details

Glad it seems to be working ok. VPN can sometimes do funny things in my experience (although really good for security, especially when using public wifi). Later this year I plan to move the site to a new hosting provider as I am not very satisfied with the current one we have had for 10+ years. This...
by admin
Fri Feb 09, 2024 2:44 pm
Forum: CJO Feedback, Suggestions and Report Site Problems
Topic: Cannot find member details
Replies: 4
Views: 243

Re: Cannot find member details

Can you try again, maybe with a different browser? It works for me, and I also tried it with your user permissions as well.

Perhaps someone else could confirm as well?
by admin
Fri Feb 09, 2024 2:39 pm
Forum: Amplifiers
Topic: MV-55 - most significant improvement yet
Replies: 2
Views: 127

Re: MV-55 - most significant improvement yet

Thanks for the writeup. I may do an upgrade on my MV-55 in the future and there are definitely some great ideas here.
by admin
Fri Feb 09, 2024 6:10 am
Forum: Preamps
Topic: CJ ACT2 hex bolts
Replies: 3
Views: 140

Re: CJ ACT2 hex bolts

Welcome to CJO. Great to have you with us. I'm sorry I don't have an answer for you but if you don't hear back I would recommend getting a thread checker. They are under $20 and you can check on the size yourself. Probably a nice thing to have in the tool box anyway. Something like this for example:...
by admin
Fri Feb 09, 2024 5:05 am
Forum: General Discussion - CJ related topics
Topic: MV-55 anyone with experience of this?
Replies: 5
Views: 4147

Re: MV-55 anyone with experience of this?

Sounds like these upgrades will keep the MV-55 running flawlessly for many years to come.

May I ask how much all the replacement parts cost? As a fellow MV-55 owner, this is something I may consider doing in the future.
by admin
Wed Feb 07, 2024 12:10 pm
Forum: General Discussion - CJ related topics
Topic: Oh! For the love of tubes!
Replies: 77
Views: 50536

Re: Oh! For the love of tubes!

But all the others are at the mercy of unfriendly, fickle sources. And this is my biggest concern. I don't think their can be relatively inexpensive quality tube production in the West. Russian sources are shut down for all intents and purposes. And we have not seen quality tubes coming out of Asia...
by admin
Wed Feb 07, 2024 11:50 am
Forum: General Discussion - CJ related topics
Topic: CJ HQ Audition System Upgrade
Replies: 4
Views: 196

Re: CJ HQ Audition System Upgrade

I'm in a similar boat. Last time I heard Zellaton speakers was a number of years ago but I was very impressed. It was outside of my price range so it was more of a "fun listen" vs true consideration. I think if CJ is dropping big money (for a small company like them) on their listening roo...
by admin
Wed Feb 07, 2024 8:27 am
Forum: General Discussion - CJ related topics
Topic: Oh! For the love of tubes!
Replies: 77
Views: 50536

Re: Oh! For the love of tubes!

Burmester makes some incredible gear. Not sure how much "better" you can get in the SS world. Maybe, something like Dartzeel, but now the price is going through the roof.

RJ, I think you are a tube guy like the rest of us. Why try to find SS options when it's the tube sound you like?
by admin
Tue Feb 06, 2024 4:17 pm
Forum: Preamps
Topic: New CJ ART88 Preamp
Replies: 171
Views: 371132

Re: New CJ ART88 Preamp

Glad it worked out well. Tube depot is really great. I've bought from them before.
by admin
Sun Feb 04, 2024 4:12 pm
Forum: DIY, mods, tweaks
Topic: WARNING: incorrectly labelled, but EXPENSIVE, V-Cap and Solen PTFE capacitors
Replies: 14
Views: 1297

Re: WARNING: incorrectly labelled, but EXPENSIVE, V-Cap and Solen PTFE capacitors

It's odd that Solen would not view this is a problem to the extent of properly (if at all) marking their caps.
by admin
Sun Feb 04, 2024 3:49 pm
Forum: DIY, mods, tweaks
Topic: WARNING: incorrectly labelled, but EXPENSIVE, V-Cap and Solen PTFE capacitors
Replies: 14
Views: 1297

Re: WARNING: incorrectly labelled, but EXPENSIVE, V-Cap and Solen PTFE capacitors

In all honesty, I think your supplier is making claims that are not supported. The data sheet from Solen is going to be the final word. I've only bought Solen from Solen directly so can't speak about 3rd party suppliers.
by admin
Sun Feb 04, 2024 2:51 pm
Forum: DIY, mods, tweaks
Topic: WARNING: incorrectly labelled, but EXPENSIVE, V-Cap and Solen PTFE capacitors
Replies: 14
Views: 1297

Re: WARNING: incorrectly labelled, but EXPENSIVE, V-Cap and Solen PTFE capacitors

Do solen caps even have markings for polarity? I'm trying to remember if I saw anything on the caps themselves to indicate direction and I just don't remember seeing anything on them. Maybe I'm just forgetting?
by admin
Sun Feb 04, 2024 11:57 am
Forum: DIY, mods, tweaks
Topic: WARNING: incorrectly labelled, but EXPENSIVE, V-Cap and Solen PTFE capacitors
Replies: 14
Views: 1297

Re: WARNING: incorrectly labelled, but EXPENSIVE, V-Cap and Solen PTFE capacitors

Interesting videos. Question, is the noise only introduced if there is something coming into physical contact with the backwards cap?
by admin
Sat Feb 03, 2024 12:46 pm
Forum: DIY, mods, tweaks
Topic: WARNING: incorrectly labelled, but EXPENSIVE, V-Cap and Solen PTFE capacitors
Replies: 14
Views: 1297

Re: WARNING: incorrectly labelled, but EXPENSIVE, V-Cap and Solen PTFE capacitors

I'm familiar with how a capacitor functions. I don't recall this information on the solen caps I have bought before (similar to the black solen cap you have in the picture). Makes me wonder if I installed them correctly (last time was a cap replacement in the crossover for my magnepan n 20.1 speaker...
by admin
Fri Feb 02, 2024 4:02 am
Forum: Amplifiers
Topic: Premier 11A B+ Voltages
Replies: 2
Views: 373

Re: Premier 11A B+ Voltages

Hi David,
Welcome to CJO, great to have you with us.

All our available schematics are available for download in the troubleshooting section of the forum. If it's not listed there, we don't have it.

Link to schematics: https://www.conradjohnsonowners.com/viewtopic.php?t=128
by admin
Tue Jan 30, 2024 2:47 pm
Forum: Non-CJ Products-Audio
Topic: McIntosh C-22 MKV In The House
Replies: 14
Views: 12083

Re: McIntosh C-22 MKV In The House

It's a little beyond "a 3 year old", but the basics are pretty easy, and it can do a lot if in the future you really want to get crazy with it.

Calibration mic: https://www.minidsp.com/products/acoust ... ent/umik-1

Calibration software: https://www.roomeqwizard.com
by admin
Tue Jan 30, 2024 4:36 am
Forum: Non-CJ Products-Audio
Topic: McIntosh C-22 MKV In The House
Replies: 14
Views: 12083

Re: McIntosh C-22 MKV In The House

Interesting little device. I use active room correction/equalization in my home theater setup. It's near impossible to calibrate 8+ speakers all at once with simply "moving them around" or putting acoustic treatments here and there. However, my expectations of hometheater is very different...