# Tube Talk **URL:** https://forum.psaudio.com/c/accessories-and-tweaks/tube-talk/160.md [Latest](https://forum.psaudio.com/latest.md) · [Categories](https://forum.psaudio.com/categories.md) · [Tags](https://forum.psaudio.com/tags.md) --- ## [About the Tube Talk category](https://forum.psaudio.com/t/about-the-tube-talk-category/27692)
**Author:** [@Elk](https://forum.psaudio.com/u/Elk)\ **Replies:** 0\ **Last updated:** [February 22, 2022, 6:22pm UTC](https://forum.psaudio.com/t/about-the-tube-talk-category/27692 "2022-02-22T18:22:38Z")
Anything about tubes --- ## [Telefunken G73R](https://forum.psaudio.com/t/telefunken-g73r/27693)
**Author:** [@john2213](https://forum.psaudio.com/u/john2213)\ **Replies:** 27\ **Last updated:** [April 13, 2026, 10:05pm UTC](https://forum.psaudio.com/t/telefunken-g73r/27693 "2026-04-13T22:05:07Z")
First off, I would like to thank @Elk for creating a new category under tweaks for “tube talk” it will be nice to get all the tube discussions under one umbrella! I have been searching for and have located a NOS pair of… --- ## [Brent Jessie Retiring](https://forum.psaudio.com/t/brent-jessie-retiring/43750)
**Author:** [@john2213](https://forum.psaudio.com/u/john2213)\ **Replies:** 7\ **Last updated:** [February 22, 2026, 11:06pm UTC](https://forum.psaudio.com/t/brent-jessie-retiring/43750 "2026-02-22T23:06:13Z")
Brent Jessie plans to retire and sell his business. All orders must be placed on or before March 5th. I have been buying tubes from him for 20yrs, a resource that will be missed Best, JP --- ## [Apos Ray 12AU7 Tubes](https://forum.psaudio.com/t/apos-ray-12au7-tubes/36670)
**Author:** [@andynotadam](https://forum.psaudio.com/u/andynotadam)\ **Replies:** 42\ **Last updated:** [November 25, 2025, 5:47am UTC](https://forum.psaudio.com/t/apos-ray-12au7-tubes/36670 "2025-11-25T05:47:50Z")
I’m giving the new Apos Ray 12AU7 tubes a spin in my BHK pre and I am quite impressed so far. https://apos.audio/products/apos-ray-tube-12au7 Apos / Ray are cagey about their provenance (China, most likely) and they cl… --- ## [Cali Acoustics](https://forum.psaudio.com/t/cali-acoustics/43138)
**Author:** [@john2213](https://forum.psaudio.com/u/john2213)\ **Replies:** 0\ **Last updated:** [November 18, 2025, 8:52pm UTC](https://forum.psaudio.com/t/cali-acoustics/43138 "2025-11-18T20:52:51Z")
I was looking to re-tube my RADA phono preamp. It sounds great with the current tubes, just looking to roll a different flavor The RADA uses somewhat less common tubes, E182CC input, 6AU6 output and 6x5/6x4 rectifier. I… --- ## [Review compairing the best modern tubes to NOS](https://forum.psaudio.com/t/review-compairing-the-best-modern-tubes-to-nos/42737)
**Author:** [@Audioholic](https://forum.psaudio.com/u/Audioholic)\ **Replies:** 4\ **Last updated:** [September 20, 2025, 1:15am UTC](https://forum.psaudio.com/t/review-compairing-the-best-modern-tubes-to-nos/42737 "2025-09-20T01:15:35Z")
I haven’t heard about Cryrotone but they sound like they might be worth checking out. --- ## [Best tubes for BHK Preamp that are still available](https://forum.psaudio.com/t/best-tubes-for-bhk-preamp-that-are-still-available/37872)
**Author:** [@DennyD](https://forum.psaudio.com/u/DennyD)\ **Replies:** 26\ **Last updated:** [April 19, 2025, 8:06pm UTC](https://forum.psaudio.com/t/best-tubes-for-bhk-preamp-that-are-still-available/37872 "2025-04-19T20:06:05Z")
Looking for recommendations for tubes that are still available for the BHK Pre. --- ## [How important are footers?](https://forum.psaudio.com/t/how-important-are-footers/37497)
**Author:** [@mitchb105](https://forum.psaudio.com/u/mitchb105)\ **Replies:** 92\ **Last updated:** [April 11, 2025, 2:21am UTC](https://forum.psaudio.com/t/how-important-are-footers/37497 "2025-04-11T02:21:26Z")
My system is complete and well balanced but I don’t have footers under any of my components which are on a nice rack. My speakers are on large cones as are my power conditioner, headphone amp and tuner. I wonder if I cou… --- ## [Tube Depot - Telefunken Sale](https://forum.psaudio.com/t/tube-depot-telefunken-sale/39738)
**Author:** [@john2213](https://forum.psaudio.com/u/john2213)\ **Replies:** 0\ **Last updated:** [October 22, 2024, 6:12pm UTC](https://forum.psaudio.com/t/tube-depot-telefunken-sale/39738 "2024-10-22T18:12:41Z")
https://www.tubedepot.com/t/tubedepot-sale --- ## [Tube Depot - NOS Tube Sale](https://forum.psaudio.com/t/tube-depot-nos-tube-sale/37935)
**Author:** [@john2213](https://forum.psaudio.com/u/john2213)\ **Replies:** 2\ **Last updated:** [June 27, 2024, 6:26pm UTC](https://forum.psaudio.com/t/tube-depot-nos-tube-sale/37935 "2024-06-27T18:26:14Z")
Some nice tubes here, if in the market Best, -JP https://www.tubedepot.com/t/tubedepot-sale --- ## [Problem setting bias](https://forum.psaudio.com/t/problem-setting-bias/37592)
**Author:** [@ErVikingo](https://forum.psaudio.com/u/ErVikingo)\ **Replies:** 8\ **Last updated:** [May 25, 2024, 4:53pm UTC](https://forum.psaudio.com/t/problem-setting-bias/37592 "2024-05-25T16:53:08Z")
I want to run a peculiar situation I have with my system to see what you all think. On my Manley amps (mid hi towers on my Infinity IRS Beta) I cannot set the bias with the speakers connected since the voltage at the tu… --- ## [Difference between 12AU7 P and 12AU7 S](https://forum.psaudio.com/t/difference-between-12au7-p-and-12au7-s/37048)
**Author:** [@softlight64](https://forum.psaudio.com/u/softlight64)\ **Replies:** 8\ **Last updated:** [March 28, 2024, 10:10am UTC](https://forum.psaudio.com/t/difference-between-12au7-p-and-12au7-s/37048 "2024-03-28T10:10:57Z")
Can anyone tell me the difference between 12AU7 P and 12AU7 S? Should you specify one type or the other when you order tubes? I’m lost here, any help would be appreciated. --- ## [Big lot of tubes for sale](https://forum.psaudio.com/t/big-lot-of-tubes-for-sale/36961)
**Author:** [@john2213](https://forum.psaudio.com/u/john2213)\ **Replies:** 0\ **Last updated:** [March 14, 2024, 8:39pm UTC](https://forum.psaudio.com/t/big-lot-of-tubes-for-sale/36961 "2024-03-14T20:39:29Z")
Got this sent to my email today, thought I would pass it along. The GEC KT 88’s are supposed to be the shizzy, I called and took a quad off their hands for my spare tube amp --- ## [Tube Depot Sale](https://forum.psaudio.com/t/tube-depot-sale/34143)
**Author:** [@john2213](https://forum.psaudio.com/u/john2213)\ **Replies:** 3\ **Last updated:** [June 29, 2023, 4:17am UTC](https://forum.psaudio.com/t/tube-depot-sale/34143 "2023-06-29T04:17:19Z")
TubeDepot Sale | TubeDepot.com A few nice tubes here Best, -JP --- ## [Tube Related Sites](https://forum.psaudio.com/t/tube-related-sites/27976)
**Author:** [@john2213](https://forum.psaudio.com/u/john2213)\ **Replies:** 8\ **Last updated:** [November 29, 2022, 8:11pm UTC](https://forum.psaudio.com/t/tube-related-sites/27976 "2022-11-29T20:11:19Z")
Thought I would start this thread on tube related sites for sourcing or education or both This particular site is where I sourced the G73R pair and has a lot of nos tubes for sale. They communicated well in English and … --- ## [Russian Tubes - Supply Issue?](https://forum.psaudio.com/t/russian-tubes-supply-issue/27854)
**Author:** [@bruce-in-philly](https://forum.psaudio.com/u/bruce-in-philly)\ **Replies:** 147\ **Last updated:** [October 6, 2022, 10:54am UTC](https://forum.psaudio.com/t/russian-tubes-supply-issue/27854 "2022-10-06T10:54:17Z")
A Russian tube I wanted that was previously unavailable just went for sale… I didn’t need them but I purchased them anyway… just in case. Anyone hear about Russian supply issues? I suppose it is too early yet, but… P… --- ## [Any such thing as an audiophile 125V fuse?](https://forum.psaudio.com/t/any-such-thing-as-an-audiophile-125v-fuse/29678)
**Author:** [@robwilgus](https://forum.psaudio.com/u/robwilgus)\ **Replies:** 2\ **Last updated:** [July 11, 2022, 2:41am UTC](https://forum.psaudio.com/t/any-such-thing-as-an-audiophile-125v-fuse/29678 "2022-07-11T02:41:47Z")
I’m looking at the Cayin H80A hybrid integrated and it looks like it uses a 10A 125V fuse. So is there any such thing as an audiophile 125V fuse? They all look like they’re 250V. --- ## [Has anyone tried the CryoTone 12AU7 in the BHK preamp?](https://forum.psaudio.com/t/has-anyone-tried-the-cryotone-12au7-in-the-bhk-preamp/29323)
**Author:** [@Clarity](https://forum.psaudio.com/u/Clarity)\ **Replies:** 2\ **Last updated:** [June 12, 2022, 5:51am UTC](https://forum.psaudio.com/t/has-anyone-tried-the-cryotone-12au7-in-the-bhk-preamp/29323 "2022-06-12T05:51:50Z")
I think they are a wee taller than some 12AU7. I’ve used some other CryoTone power and pre tubes in other pre and amps with great results. Link: Thanks! --- ## [Quick Tube recommendation for a noob please](https://forum.psaudio.com/t/quick-tube-recommendation-for-a-noob-please/29104)
**Author:** [@roninaudio](https://forum.psaudio.com/u/roninaudio)\ **Replies:** 8\ **Last updated:** [May 23, 2022, 3:41pm UTC](https://forum.psaudio.com/t/quick-tube-recommendation-for-a-noob-please/29104 "2022-05-23T15:41:24Z")
Hi all. I know very little about tubes. I have seen where some folks have supply issues and a simple 25 dollar tube being 100 bucks ea as they’re rare, Kevin’s stash", cyro etc. Basically I’m hoping someone will just p… --- ## [JJ Tube Availability](https://forum.psaudio.com/t/jj-tube-availability/28959)
**Author:** [@john2213](https://forum.psaudio.com/u/john2213)\ **Replies:** 0\ **Last updated:** [May 9, 2022, 9:07pm UTC](https://forum.psaudio.com/t/jj-tube-availability/28959 "2022-05-09T21:07:20Z")
Just got this msg if anyone is looking for JJ tubes JJ Tubes have been in short supply, but they are working hard to manufacture the tubes you need. The JJ Electronic vacuum tube factory has been busy making all the tub… --- ## [Tube shelf life](https://forum.psaudio.com/t/tube-shelf-life/28598)
**Author:** [@gd7288](https://forum.psaudio.com/u/gd7288)\ **Replies:** 10\ **Last updated:** [April 15, 2022, 7:28pm UTC](https://forum.psaudio.com/t/tube-shelf-life/28598 "2022-04-15T19:28:54Z")
If left in box on shelf is there a point where the get to be too “old”? Have a sense, as i type, this a dumb question…but what the hell…no guts no glory Thank you --- ## [Roller Hero Tubility Belt](https://forum.psaudio.com/t/roller-hero-tubility-belt/28432)
**Author:** [@Gary\_M](https://forum.psaudio.com/u/Gary_M)\ **Replies:** 7\ **Last updated:** [April 2, 2022, 12:59pm UTC](https://forum.psaudio.com/t/roller-hero-tubility-belt/28432 "2022-04-02T12:59:17Z")
Seems like a good idea, but no way I’d cough up 800 bucks for this product. My shoe box works just fine.