Lancaster Hi-Fi
Lancaster Hi-Fi
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Tone Control Mods on a Vintage, Tube-Era Sansui Receiver
I'm using LTSpice circuit modeling software to modify the existing tone controls, remove the high and low filters, and design a bypass of the tone controls.
Переглядів: 231

Відео

Problem Solved! Vintage Receiver Malfunction Fixed!
Переглядів 3872 місяці тому
A Yamaha CR-620 looked fine without a load connected to the speaker terminals, but with a load, half of the waveform was missing! A bad resistor between the "pull-side" driver emitter and output base was the problem. Heat damage and increased the resistor's value by more than two orders of magnitude. With no load, almost no current passed through the resistor, so voltages were normal. With a lo...
Wait! That's a Thing? Vintage Receiver Malfunction
Переглядів 1,1 тис.2 місяці тому
Yamaha CR-620 clips off the lower half of the waveform when loaded!
Gear Haul!
Переглядів 3553 місяці тому
Gear Haul!
Do Cables Matter? How Much Should You Spend?
Переглядів 4 тис.3 місяці тому
Signal cables. Audio interconnects. You could spend a lot. Should you?
Do Cables Matter? Testing! Differences Detected!
Переглядів 2,1 тис.3 місяці тому
A/B testing of flimsy, cheap cable and a $20 cable connecting CD player and preamp. I listen for the differences and look at the differences after loading the recordings into Audacity. I select a few small samples, less than one second long, and compare the power vs. frequency spectra.
Preamp Mod For Moving Coil Cartridge!
Переглядів 8864 місяці тому
The Rega Apheta requires phono preamp input impedance of 100 ohms, but my preamp's moving coil stage has an input impedance of 22 ohms, so I replaced the resistors in the voltage divider at the input.
Preamps: Why Are the Best So Expensive?
Переглядів 16 тис.4 місяці тому
Preamps: Why Are the Best So Expensive?
The Best Affordable Tube Amps: Consoles
Переглядів 4,3 тис.4 місяці тому
The Best Affordable Tube Amps: Consoles
Bad Tube Amp Design 101
Переглядів 3,6 тис.5 місяців тому
Bad Tube Amp Design 101
Tube Amp Design and Gourmet Cooking
Переглядів 4375 місяців тому
Tube Amp Design and Gourmet Cooking
Tube Amps: Single-Ended vs. Push-Pull and Buying Advice
Переглядів 3,2 тис.5 місяців тому
Tube Amps: Single-Ended vs. Push-Pull and Buying Advice
Should You Buy Sensitive Speakers? Uh ... Whut?
Переглядів 7 тис.5 місяців тому
Should You Buy Sensitive Speakers? Uh ... Whut?
Should You Buy Vintage Speakers? Yes!
Переглядів 34 тис.6 місяців тому
Should You Buy Vintage Speakers? Yes!
What's the Deal With Separates? Vintage or Otherwise?
Переглядів 1,3 тис.6 місяців тому
What's the Deal With Separates? Vintage or Otherwise?
Should You Buy a Vintage Receiver? Or Any Receiver?
Переглядів 9 тис.6 місяців тому
Should You Buy a Vintage Receiver? Or Any Receiver?
Do You Love Records?
Переглядів 8677 місяців тому
Do You Love Records?
I Must Build an SET Tube Amp With Type 45 Triodes! Why?
Переглядів 1,8 тис.7 місяців тому
I Must Build an SET Tube Amp With Type 45 Triodes! Why?
Should You Buy a Vintage Cassette Deck? Or Any Cassette Deck?
Переглядів 9 тис.7 місяців тому
Should You Buy a Vintage Cassette Deck? Or Any Cassette Deck?
Can a Restored Vintage Tube Amp Beat a New DIY Amp? PACO SA-40 vs. Beaver Valley
Переглядів 1 тис.7 місяців тому
Can a Restored Vintage Tube Amp Beat a New DIY Amp? PACO SA-40 vs. Beaver Valley
Should You Buy a Vintage Turntable? Or Any Turntable?
Переглядів 28 тис.7 місяців тому
Should You Buy a Vintage Turntable? Or Any Turntable?
Should You Buy a Vintage CD Player? Or Any CD Player?
Переглядів 32 тис.7 місяців тому
Should You Buy a Vintage CD Player? Or Any CD Player?
Does Streaming Work With Vintage Audio and You?
Переглядів 3 тис.7 місяців тому
Does Streaming Work With Vintage Audio and You?
Calibrate Your Turntable! How to Accurately Measure the Speed
Переглядів 1,1 тис.8 місяців тому
Calibrate Your Turntable! How to Accurately Measure the Speed
New Iwistao Output Transformers from China
Переглядів 1,6 тис.10 місяців тому
New Iwistao Output Transformers from China
Tube amp shootout! Push-Pull 6V6 vs. EL84
Переглядів 3,1 тис.10 місяців тому
Tube amp shootout! Push-Pull 6V6 vs. EL84
Power Supply and Bias Redesign for the BV-6V6 Tube Amp
Переглядів 57511 місяців тому
Power Supply and Bias Redesign for the BV-6V6 Tube Amp

КОМЕНТАРІ

  • @yjwukt88
    @yjwukt88 10 годин тому

    My everyday audio gear is a ReVox B780 without a dial face. Inside B780 the space was mostly reserved to FM tuner (with Dolby capability as an option) just as a ReVox FM tuner B760.

  • @Possumtracks-v2o
    @Possumtracks-v2o День тому

    I bought a 1975 Technics SL-1300 and Rebuilt it. It turned out Fantastic, And I also put an NOS Stanton 881s/D81s II on it. I will keep this jewel.

  • @robertyoung1777
    @robertyoung1777 День тому

    Very helpful information here especially around 18 minutes in. Thank you.

  • @nyquist5190
    @nyquist5190 День тому

    Years ago I ripped my 1000+ cd collection on hard disk. I find that I have little emotional attachment to the physical disks although I still have them. In fact I like sitting at my computer and clicking through Foobar2000 playlists, Spotify and UA-cam.

  • @NunyaByness
    @NunyaByness День тому

    I only by cd players from the future. 31st century. The future retro future ones.

  • @jamescross4201
    @jamescross4201 День тому

    I’m so glad I found you. It’s so nice so nice listen to self effacing humer along with tech knowledge to make your points. Do what you must with your equipment, but don’t loose your mind and listeners at the expense of end product. You’re a joy to watch and listen to.

  • @davidnguyen5028
    @davidnguyen5028 День тому

    I bought the following turntables in the last 2 years in order: an MCS $40, Technics SL1200MK2 $660, another SL1200MK2 $300 no head shell a month later, a Dual 246 $40, a Sansui SRxx $20 no head shell, a Pioneer PL500 $150, a Pioneer PL?? $60, B&O 7000 $330, a Marantz 660 for $650, a Technics SL1200mk2 $10 needs work, Pro-ject Perspex $1000, Lynn Sondek LP12 $1100 a Denon DJ $20 no head shell and needs work, another Denon DJ from Ebay arrived broken so it was free, a Gerard $30. I either sold or traded everything except for the mint Technics SL1200mkii for $660 and the Gerard. At some point I will sell the Gerard.

  • @misterdutch2853
    @misterdutch2853 2 дні тому

    Not everything from the 70s and 80s was good.

  • @YouTube4Rudy
    @YouTube4Rudy 2 дні тому

    I made a great many "mixed tapes" from this deck when I was 16. My dad gave this one away when he upgraded to a CT-F750. I really didn't understand tape decks back then. There was no "Dummies" book for these things, only audio magazine articles where they assumed you knew what the hell they were talking about. If I only knew then what I know now.

  • @dieterleifeld6973
    @dieterleifeld6973 2 дні тому

    Are you drunk and drink not so much genwine

  • @animalcorvair
    @animalcorvair 2 дні тому

    my boy has that tape deck he saves them ...me i am a reel to reel guy

  • @DanRussell-zl9re
    @DanRussell-zl9re 4 дні тому

    Nice List I love cultisoraus erectis by BOC and the Metallica alblum is very good the other bands no clue I do remember in the Navy my good buddy loved Social D and Primus I thought he was crazy but I did end up liking Primus ,Sublime and other alternatives bands yeah in those days there were punk guys metal guys new wave guys etc I’m glad now days I can enjoy Jazz and rock and not have to hide my Donald Byrd behind my Supertramp or be ashamed that I like disco lol. Great video

  • @anthonystipelcovich3763
    @anthonystipelcovich3763 4 дні тому

    Isn’t streaming affected by internet availability. My internet gets sketchy during peak hours.

  • @herbward5240
    @herbward5240 4 дні тому

    Most of the Adcom tuners suffer from open trimmer capacitors in the front end . An easy fix .

  • @eeeeetfish
    @eeeeetfish 5 днів тому

    the 2amp diodes are obsolete - use the 3amp ?

  • @Duane-s7s
    @Duane-s7s 5 днів тому

    Why are all modern receivers just a black box? They are ugly. Receivers from the 70’s were beautiful. Something special.

  • @bobbiejoyamann3981
    @bobbiejoyamann3981 5 днів тому

    Wondering if you can comment on your experience with Yamaha's loudness control and if that is a useful feature to be able to adjust the loudness profile?

  • @wooddragon576
    @wooddragon576 7 днів тому

    have a 2235b and sx-727 . prefer the pioneer over all

  • @hhvictor2462
    @hhvictor2462 7 днів тому

    I live in a large urban area and listen to several radio stations. All of them non-profit except for one all news station. Among some of those stations tho', the FM antenna is usually the weak link.

  • @MichaelZweifel
    @MichaelZweifel 7 днів тому

    I'm still using my Technics SL-Q3 that I got in 1981, with a Technics Receiver and Speakers.

  • @ricardoflot2787
    @ricardoflot2787 7 днів тому

    ABSOLUTELY, I own 3 vintage TTs, Yamaha DD, Technics DD, and a BIC 980, they've always worked for me, but then I'm not a beginner.

  • @JustFortheRecord66
    @JustFortheRecord66 8 днів тому

    The original Sony PSI is still my favorite CD player. I’ve owned many higher end CD players over the years but the original PSI still sounds the warmest and most musical of them. Add a PS2 remote to it and one is all set.

  • @simonzinc-trumpetharris852
    @simonzinc-trumpetharris852 8 днів тому

    I did, and they're amazing,

  • @chelovekrazumni9960
    @chelovekrazumni9960 9 днів тому

    Try British amplifiers. Small and super strong. Like Cyrus 8 VS 2 +PSX-R. Forget about that smelly, messy, old, boxy, ugly, mass produced, vintage garbage. Discover the real HiFi.✌️

  • @chelovekrazumni9960
    @chelovekrazumni9960 9 днів тому

    Finally someone sane in this genre. Cheers brother, like your straight to the point thoughts. Many others are acting like infantile clown, while talking about HiFi. Impossible to listen.

  • @vinsgarde
    @vinsgarde 9 днів тому

    😂😂❤ you sounded so honest yet funny with sips of liquor between the recollection of despair moments 😂😅

  • @beyondmiddleagedman7240
    @beyondmiddleagedman7240 9 днів тому

    I run a pair of Design Acoustics D2 and D6. Most new speakers just don't sound as good.

  • @DavidGomez-zc1cf
    @DavidGomez-zc1cf 10 днів тому

    Soni cds players have a history of bad Lazer and hard to reaper

  • @pkontopoulos
    @pkontopoulos 10 днів тому

    Perfect staff. I like your videos and the way you support your knowledge. Please let me know which software you use to test, collect performance data for your amps. I have seen it, in one of your videos but I cannot recollect the name. Thanks again for everything

  • @joeltunnah
    @joeltunnah 11 днів тому

    In what design does the inverter or gain stage "supply current to the grid" of the output tube(s)? Class AB2 direct coupled? Also a 12AX7 is actually a very linear tube, within its limits. Much better than having multiple low gain stages. And a grid stopper resistor on the output tube will stop HF oscillation in most cases.

  • @jedhatcher252
    @jedhatcher252 13 днів тому

    You have two sites?

  • @TE5LA-GAMING
    @TE5LA-GAMING 13 днів тому

    Meh... My '91 Luxman would put them both to shame. What you get from tubes that you don't from solid state is called distortion 😁

  • @jakeg2307
    @jakeg2307 14 днів тому

    I have a pair of cherry klipsch epic- would walnut work? Seeing what everyone thinks?

  • @GOGGLETUBESUCKS4UIC
    @GOGGLETUBESUCKS4UIC 15 днів тому

    My deck doesn’t have Dolby. It has ANRS I & II and DBX. I also have a HiCom encoder and decoder so problems here with hiss. They all sound great especially the HiCom which sounds good with or without it on unlike DBX.

  • @GOGGLETUBESUCKS4UIC
    @GOGGLETUBESUCKS4UIC 15 днів тому

    Are you really going to listen to a guy with old hearing ears or just tired of the hassle that also comes with age. Cassetes probably sound worse to this guy as he ages or he's had nothing but bad gear. Thats probably why he needs to spend another $5k in gear to hear any purity again. There is a fun factor to cassetes most dont understand until the have experimented with them enough to apreciate what it does for that listener. Cassete decks are fine and can sound better(or just more pleasing to ones opinion) than the source if done right. Buy a 3 head deck of you want the full experience. Nexf buy a quailty EQ and experiment with the limitations of a quality cassette when recording to get your optimum desired sound. You may apreciate the result of a piece of recording you altered on the fly to make it sound the way you wanted it to. This can also be done with a quality RTR machine.

  • @bcretty606
    @bcretty606 15 днів тому

    Do you offer any of these tube amps for sale? Please PM me. Thank you. B

  • @timwimer5370
    @timwimer5370 15 днів тому

    Where is the store located at?? Is this Lancaster pa?? Or Lancaster ca?

  • @eeeeetfish
    @eeeeetfish 16 днів тому

    Did you see Dave G had a post on AK about deleting the PECs ? kind of difficult to find though ,seems interesting . Thank you for the workI ,I have a similar problem with my PACO - But dont have Scope ,or the know how if I did . I suppose its the shotgun approach - New Caps and Resistors - Seems the norm - thanks to your dialogue - the hope is of course that the problem goes away . by the way -Any recommendations for a scope for tube amp work ? Uncle Doug has a scope tutorial - Trying to learn- Thanks

  • @60zeller
    @60zeller 17 днів тому

    I had a 30 watt Marantz Looovvee it. Yours is beautiful

  • @pkontopoulos
    @pkontopoulos 17 днів тому

    I like your videos and your educated comments are precious to all. Thank you

    • @keplermission4947
      @keplermission4947 2 дні тому

      EMI loudspeakers are a brand not every tube amplifier owner even knows about but they're a compact cabinet version of a QUAD ESL-57 type sound, very good indeed and often found at a low price because nobody knows the brand. Very deep bass output (down to 22Hz) in the 319, using a fraction of a watt.

  • @jedhatcher252
    @jedhatcher252 17 днів тому

    Everyone is starting to get back into cassettes again though.

  • @chrisbullock6477
    @chrisbullock6477 17 днів тому

    Came across some Polk Audio RTi70 Floorstanding Tower Speakers for a couple hundred bucks in above average condition with original owner. Their asking $200 is this a good deal? Not super familiar with Polk audio profiles.

    • @Lancaster_Hi-Fi
      @Lancaster_Hi-Fi 16 днів тому

      I don't know. I usually search for the model on ebay, then set the filter to show sold items.

  • @celloting01
    @celloting01 17 днів тому

    excellent video! questions: what's the sound like between se el84 strapped in triode mode with 0 feedback and se el84 pentode with 0 feedback? between triode mode with 0 feedback and with feedback? and are there differences between se true triode (eg 300b) and se el84 triode mode, with or without feedback? thanks.

  • @madmeister407
    @madmeister407 18 днів тому

    Why is my Pioneer PL12D Mk1 which I bought new in 1972 and still in use today called a "vintage turntable" but my copy of Deep Purple's Fireball which I bought new in 1971 Is just known as a record?

  • @fireboxish
    @fireboxish 18 днів тому

    Have you had the opportunity to check these out in circuit yet?

  • @equesfuscus
    @equesfuscus 18 днів тому

    $185 for the materials! Great video, thanks for sharing. But I'm just musing generally here: what has happened to the reward for buying scratch materials and DIY?

  • @edwardallan197
    @edwardallan197 19 днів тому

    Nice sir! I just finished giving a $35 Ebay Yamaha RX-485 the once -over. I love their build quality.

  • @pete1927
    @pete1927 19 днів тому

    Took a CT-f850 apart for restoration and when came to taking the front plate off it was followed with a host of broken plastic in the mechanical front end and push buttons, I obviously wasn’t the first looking at the bad repairs to the plastic. Sadly I have abandoned the project and got another. I have electronically successfully restored 50% of the rig including a RT-909 reel to reel. I’ll check out your ste further.

  • @1framistan
    @1framistan 20 днів тому

    At time stamp 8:50 it looks to me like that LAST set of contacts on the right side of screen looks crooked or broken. Doesn't look lined up correctly with the other contact.

  • @bearded_wolverine3503
    @bearded_wolverine3503 20 днів тому

    Which pioneer model would you suggest? Say, semi auto table. I also like the sl series of technics but sellers are asking ridiculous money for them