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tubes

  1. MrPoetry

    MC-240 Tube Rolling Questions

    I’m looking for advice on rolling the seven signal tubes in my McIntosh MC240. Budget is around $750, total (minus $200 already spent; see below). Two main questions: 1. Which of the seven signal tubes are worth splurging on? 2. What combination of tubes are likely to work well together? I’ll...
  2. 6

    Any Local Shops In NYC to have Tube Testers Repairs or Tubes tested

  3. kcline

    CC-AWA Winter Tailgate Indoors at Mebane Auction Mebane NC 1-24-2026. 8:00AM

    Annual winter tailgate indoors at MAAG, right on US70 Orange County side of Mebane NC. Free to buy sell or trade coffee and snacks will be provided. This a radio club meet however Audio items tubes for sure, will show up. Lots of tables inside. Come early as tailgate will be over by 11:00am
  4. M

    Hilarious lost in translation via AliEx

    Ultra-low noise floor, listen to music, restore HIFI High-fidelity sound quality, full of strength, whether it is symphony or HIFI music, it can express every detail and move people's hearts. Features a variety of digital audio inputs: Stereo RCA, compatible with most audio devices, such as...
  5. mcaddie7

    Harman Kardon A500 No Sound

    Hi all! Have a A500 that worked fine before recap, albeit one channel was much quieter than the other. I swapped all film caps (not my first receivers, have done this many times but am always learning) and the thing still worked. I replaced the two big electrolytic and still fine. Now onto...
    • mcaddie7
    • Thread
    • harmon kardon harmon kardon a500 recap help tubes
    • Replies: 143
    • Forum: Tube Audio
  6. Sitandlisten

    Help wanted to identify tubes / info on DIY amps

    Hey all! I'm hoping to pick up these tube amps this weekend. Before I do, I was hoping to gather as much info on them as I can to make a fair offer on buying them all. Please review the photos I've attached and post any knowledge you may have on them! These are all DIY handmade amps and...
  7. S

    Speaker Wiring Help

    I am working on an old RS 193B. I have the amp/tubes everything working and am ready to restore them back into the cabinet, sans the record player which was rusted and is not replaced with a newer one. I just need some help with wiring the speakers/capacitors hooking it all up. The left...
    • SpinningJim
    • Thread
    • rca victor rs-193b speaker advice tubes wiring help wiring speakers
    • Replies: 7
    • Forum: Tube Audio
  8. D

    Luxman MB3045 biasing guide/help

    Hello all and thanks in advance I recently purchased a beautiful pair of Luxman MB3045 amps. They are running well but given the age and the previous history being unknown I would like to check the bias etc on them. I have done a bit of a search online and thought I would come across a service...
    • DanBun
    • Thread
    • amplifier bias biasing luxman tubes valves
    • Replies: 22
    • Forum: Tube Audio
  9. R

    LOXJIE P20 Amp Tubes

    Hi all, Im new to using amps and especially tube amplifiers. I bought this Loxjie P20 amp on amazon a couple years back and am now thinking of replacing the tubes in it to try and get some better sound from it. But I am entirely unsure of what to look for in terms of replacement as well as...
    • Rytec
    • Thread
    • buiding advice noob noob in need of help tubeamp tubes
    • Replies: 5
    • Forum: Tube Audio
  10. SeeDee

    Fosi Audio Box X4 - Not just for record players!

    TLDR - I love it with all of its foibles. So, how did we get here? I love little amps. They don't need to be high powered for my listening enjoyment. I like to have things tuned for the space I am in. I have been rocking the Fosi Audio T20 since 2021 and I love it. I really enjoy the...
  11. Danddd

    Would like to know how to bring up a tube radio on a Variac

    I have this mid 40's tube radio console. I bought it about 24 years ago in Des Moines for very little. I used it for a couple of years and haven't plugged it in for at least 15 years. Since joining AK I've learned to bring up old equipment on a variac. I like this radio and plan to clean it up...
  12. kcline

    CC-AWA Radio Mebane NC Spring Tail Gate Meet FREE to Buy Sell or Trade 6-10-2023.

    This will be held at Mebane Antique Auction Gallery back parking lot behind the main building. Starting time 8:00AM until around 11:00 or 12:00. We are having inside a live catalog auction that day, so there will be lots of people and cars in parking lot. There be free snacks, water, coffee and...
  13. kcline

    What audio tubes were found in two random tube caddies

    Please see pictures. Large RCA caddie came with a radio collection from an estate where the person collected radios but had worked on TV,s for the local Zenith dealer. The Westinghouse caddie came from the CC-AWA show back in March. Box holds all the good tubes found in both caddies...
  14. S

    Hoping for advice on a possible purchase -- Yamaha turntable, EAR preamp, and Cary amp

    Greetings, good people of Audiokarma. I'm hoping some of you might not mind sharing your wisdom, warnings, thoughts, knowledge, and opinions. I'm thinking of buying the following from a guy: Yamaha YP-D8 with Stanton 881s EAR 834p Preamp Sound Masters Line Buffer Preamp No. 9 Ver. 2 Cary...
    • samuelmarius
    • Thread
    • advice cary cad-308-sa ear 834p question sound master line level preamplifier stanton 881s tubes turntables yamaha yp-d8
    • Replies: 0
    • Forum: Dollars and Sense
  15. PaperBoy007

    Anyone recognize this Zenith Console

    Not sure where to post this. Saw this Zenith Console in our newest thrift store in our small town. It has a neat looking radio and a Cobra turntable/record player. I've taken photos of the amplifier and other components in the back the best I could -- I know next to nothing about tubes and maybe...
    • PaperBoy007
    • Thread
    • tubes zenith cobra turntable zenith console zenith radio
    • Replies: 6
    • Forum: Tube Audio
  16. kcline

    CC-AWA Winter Indoor Meet Mebane NC 1-28-2023 8:00AM until ?

    Held indoors at Mebane Auction Gallery. Free to buy sell or trade. Right off of Hiway US-70 Orange County side of Mebane. Meet starts at 8:00AM, these do not last long over by 12:00 or so. Audio will show up, tubes, radios, Ham Radio and more. I will have free coffee and doughnuts and some other...
  17. J

    Magnavox 8602 -10 se and poor man's set up

    I bought the magnavox 8602 for $99 on Facebook marketplace. I bought a broken outlaw rr2150 for $50 that's output wasn't working but The preamp works fine. Got a Technics m6 cassette player for $25. And a pair of Klipsch tangent theatre speakers in the garbage. 2 mids and a dome tweeter...
    • JohnKuz1
    • Thread
    • amp budget cell phone cheap klipsh magnavox tube tubes
    • Replies: 13
    • Forum: Tube Audio
  18. Moonwatcher

    When you love your children equally

    So I am happy to say that I have two systems, both of which make me very happy: one is solid state, the other tube-based. I have a small office/guest room where I use this stuff, and I guess I would like to use the solid state for more contemporary stuff like Bruce Springsteen or Fleetwood Mac...
  19. J57LITTLE

    Just getting started on AK

    I have had a lot of electronics training and have good experience with some leading audio companies, but troubleshooting and build-from-scratch are areas where I am very interested and could use some help for sure. I am a fairly skilled speaker builder, including advanced woodworking and...
  20. tea_hous

    Is this arcing?

    Hey everyone... been a long time since I've posted to AK :0. I'm here seeking some input from those who have more knowledge and experience with tubes than myself. I just purchased a Yamamoto A-08s, and one of the tubes was damaged in shipping (despite being packed very well). Its an '80'...
    • tea_hous
    • Thread
    • 80 a-08s arcing gassy purple rectifier set tubes vintage yamamoto
    • Replies: 84
    • Forum: Tube Audio
  21. Danddd

    Time Just Goes By Better With Tubes....

    Is it analog or digital... Only $250 on Amazon
  22. kcline

    Sorting Audio Tubes out of a large Radio tube collection

    My partner in all things radio received from the estate of the late Les Goldberg his garage collection of radio tubes, he also got his Hickok 539-C tube tester. Les was a regular at Kutztown every time it was held, he died the Monday after the last Kutztown meet which he did attend but only for...
    • kcline
    • Thread
    • 6550 7189 7591 el-37 tubes
    • Replies: 9
    • Forum: Tube Audio
  23. Megaladoink

    E.H. Scott Tubes. What a photo!!!!!!

    Saw this on a Seattle CL listing. Whats up with this thing. It looks like some amazing Power Amp, and Pre with an Alnico Speaker. Long Forgotten Holy Grail unit?? That photo of all the tubes caught me by surprise. Heres a link...
  24. pantoramasan

    Need help with KT66 tube on the TV-7D/U

    Does anyone know if the settings are the same as for the 6L6GC?
  25. NattyBDC

    My ultra-vintage setup: Restored 1959 Magnavox Cabs

    Hi folks, I shared this over in the tube audio forum, but honestly, this thing sounds so good and my buddy did such a kickass job on it over the last 6 months in his free time, I wanted to share with a slightly wider audience. Hope that's okay! Last Spring, I inherited a 1959 Magnavox Berkley...
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