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frednork

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  1. Further information: For sale is a pair of rare and very closely matched Sylvania 6SN7W tubes. These pass gas and shorts tests and measure as new. Postage is included These are marked JAN-CHS- 6SN7W, Here is some info from a nice resource on 6sn7's https://www.head-fi.org/threads/the-6sn7-identification-guide.209782/ VT-231s and ‘JAN’ rated 6SN7s The VT-231 designation was a military inventory control number, and should be taken as nothing more than that. Assuming identical construction, there is zero difference between a tube labeled VT-231 and a 6SN7GT of the same vintage. A lot of mystique has been built up around VT-231 labeled tubes by tube sellers, and many people mistakenly believe ‘JAN’ stands for ‘Joint Army-Navy’, and was meant to indicate that the tubes labeled as such were ‘passed’ for military use. However, no additional criteria that were not already fulfilled by the 6SN7GT specification were known to have been imposed. ‘JAN’ labeled tubes are identical to non-JAN tubes of the same vintage and construction. The ‘JAN’ naming convention was always written as follows: JAN-<manufacturer>-<tube type> Thus examples of JAN ratings would include: JAN-CTL-6SN7GT, JAN-CHS-5U4G, JAN-CRC-6AS7G, etc. JAN manufacturer abbreviations: CHS – Sylvania CHY – Hytron or CBS-Hytron CKR – KenRad CL – GE CRC – RCA CRP – Raytheon Photos: PLEASE READ If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you don't include photographs of the actual item being sold, your ad will not be approved
  2. Further information: Pair of funky RCA 6SN7GTB coin base tubes. They pass shorts and gas tests and measure good on a hickok 750 tester. postage is included in price Photos: PLEASE READ If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you don't include photographs of the actual item being sold, your ad will not be approved
  3. Further information: Another pair of RCA grey glass 6SN7GT's that have been tested on a HIckok 750 tester and they pass gas and shorts tests. They measure as new spec and are closely matched. They are from the years 1945 and 1946. Tube date codes and labelling generally can be a bit hard to interpret but this guide by Ludwell Sibley (gotta love that name) explains it all pretty well. http://pax-comm.com/rcadates.pdf . While they dont have the VT231 labelling they are the same as any vt231's in that time. I have had plenty of VT231's and could not tell the difference (except price) postage included in Australia Photos: PLEASE READ If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you don't include photographs of the actual item being sold, your ad will not be approved
  4. Further information: These tubes from 1947 have the same date code and pass gas and shorts tests. They measure at around 85% of new spec and are well matched. They have slightly different labelling from each other but are exactly the same in the construction of the tube. Furthermore they have exactly the same construction at the vt231 types. price includes shipping Photos: PLEASE READ If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you don't include photographs of the actual item being sold, your ad will not be approved
  5. Sorry, just noticed this has been posted
  6. Important update to this if your device is uncertified you have till the 21st to apply to retain full access. I would start writing now if you have one. excerpt follows Existing Roon accounts using uncertified devices as of September 21 can request to keep all access to their currently owned uncertified Roon Ready devices before September 21st. Once access is granted, they will see no changes to their access or ability to enable/disable those devices. All other Roon accounts will no longer be able to enable uncertified Roon Ready devices on/after September 21st. So, how do I get the fix? Fill out this form: https://zfrmz.com/hQNRXlk8iLiJaQeIN2Dv 787 Everyone, thanks for your feedback and for putting up with our growing pains. We really do appreciate that you are all passionate enough about Roon to voice your opinions. full thread here https://community.roonlabs.com/t/a-fix-for-uncertified-roon-ready-devices/120426
  7. Does look kinda cool like that, reminds me of a hot rod engine bay
  8. Perhaps ask them when it will be certified and explain why it has not yet occurred if you want to send a market signal.
  9. some info on roon ready certification and what it means https://kb.roonlabs.com/Roon_Ready
  10. if this is indeed the case then in the shakeout that will inevitably follow Roon will need to justify their actions and make amends also. What device is it?
  11. Would be very suprised if the certification for these products isnt fastracked and new firmware/software isnt released soon. Would be an extremely poor look for those manufacturers if it did not occur quickly.
  12. user account is connected via email, roon device connnects with Roon labs periodically for updates etc. Assume it sends data to them about non certified and so then they send email to you.
  13. not verified but brands which may have problems are bricasti, nad/bluesound, arcam, Ayre, chord? and just saw this We are seeing some confusion on the recent announcement about uncertified Roon Ready devices and September 21. First and foremost If you are currently playing to ANY device successfully, you WILL NOT LOSE ACCESS TO THAT DEVICE ON SEPTEMBER 21. So, what happens on September 21st? Well, before we talk about what happens, let’s confirm if you have an affected device. You can verify if you have an affected device by visiting Sidebar > Settings > Audio, and checking if you have a pink UNCERTIFIED banner that looks like this: 1 If you do not see this pink banner, you are not going to be affected. Enjoy the music! If you do see the pink banner, you will no longer be allowed to “enable” that device after September 21st. This change will only affect newly installed Roon Cores, and any database resets. If the device is already “enabled” before September 21st, you will be unaffected. If you have an uncertified device… now what? First, DO NOT DISABLE IT or reset your Roon database. Disabling it will result in not being able to enable it again until the device is certified. Next, reach out to your device’s manufacturer and ask how you will be notified when a properly certified Roon Ready firmware will be available for your device. If your device is not certified, it most likely has issues that affect its performance, reliability, and/or overall experience. If you’ve not experienced any problems, then consider yourself lucky. Still, we certify devices across a much broader range of networks, audio formats, and use cases than any single person will use. This is the reason why the Roon Ready certification exists. Why is this happening? I thought I was safe with Roon Ready. The Roon Ready program, the RAAT networking protocol, and the certification process is all about creating trust. The Roon Ready program and the RAAT protocol allows manufacturers to add audiophile-focused network streaming to their devices without sacrificing simplicity and reliability. The certification program exists so that you can trust that the devices will work perfectly when they get to your house. During certification, we often find bugs that undermine the sound quality, networking reliability, and status of the current device (signal path and transport stuff). A device that is “uncertified Roon Ready” means that it is in the process of becoming “Roon Ready certified”, but has not yet completed the testing and certification process. Uncertified devices are not meant to be sold to the public, but instead only used by the manufacturers’ development teams. Not every manufacturer obeys the rules, thus breaking the trust the program intends to create. If you bought an uncertified device, it means the manufacturer violated the trust we wanted to create and have violated the Roon Ready license terms. We currently call out those development devices with a pink banner, as you can see above, in hopes that no user is fooled into purchasing “beta” hardware. We’ve been trying to get manufacturers to fix this issue for over two years and for every one that fixes the situation, two more break the rules. We had to draw the line somewhere, and September 21st is where we drew it. I guess this is just a side effect given the success of the program. Every audio device manufacturer affected knows what’s going on and has chosen to prioritize other tasks over getting appropriately certified. We are shutting down this bad behavior before it gets out of control. The good news is that 90% of the offending manufacturers have recently submitted new firmware or made other movements in their certification process. Many already had been certified, but the users need to be contacted to get new firmware (with bugfixes) for their devices.
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