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dynaco

  1. David_NC

    It Lives!

    Last week, I finally got to test out my Dynaco ST-70. I 'refurbed' it a couple months ago but never got a round to finishing a few things and getting some somewhat disposable tubes to test it with. Last week, the tubes arrived, so I finally got to hook it up. The left channel sounded OK, not...
  2. David_NC

    ST-70 Restore... And What Next?

    I finally finished replacing caps, resistors, and selenium rectifier on my ST-70. I've got four inexpensive matched EL34's and an equally inexpensive 5AR4 sitting here in a box. I assembled a DBT today in case oe is needed and have a 60 watt bulb in it (I assume that's a good wattage to use)...
  3. D

    PAS - New Power Cord

    Hi, my first post. Boy, I could spend a lot of reading time here, tons of interesting stuff. I have a question about replacing the power cord on a PAS that I am modifying. When I plug in the replacement cord, three prong, before connecting it to the PAS, and put the neg lead of my DVM to the...
  4. fordiebianco

    Dynaco Stack. Opinions?

    Dear All, I have been offered this Dynaco pre-post stack for $300. Opinions?
  5. David_NC

    Dynaco ST-70 Startup

    I finally finished 'restoring' my ST-70 last night. I replaced all the caps, most resistors, and the selenium rectifier. All that's left is to replace the rusty hardware (aka screws) on the chassis, which I'll do tonight. This is leading up to the scary part - powering it on for the first...
  6. gauze

    Do Dynakit PAS-2 vs PAS-3 have different footprints/dimensions?

    I guess this is more of a hardware question than tube but ... I bought a "PAS-2 bottom plate" and it doesn't fit on my PAS-2 it's 1/2" too wide. I asked the seller and he said he thought it might have actually been from a PAS-3, but I thought all the PAS models had the same dimensions. If it's...
    • gauze
    • Thread
    • dynaco dynakit pas-2 pas-3
    • Replies: 7
    • Forum: Tube Audio
  7. IEHAGY

    Looking for bookshelf speaker reccs based on my system ...

    Hi y'all I would appreciate some advice in my hunt for some new speakers. I have assembled my current system around a pair of Vandersteen 2ce speakers and I like how it sounds but y am moving to a house with a smaller listening space and unfortunately I don't think the Vandersteens are going...
  8. Johnny_Law

    Dynaco (kit?) ST-70 - hmm, someone's been in here before ...

    Very excited to buy this ST-70 a while ago, but it's been waiting for me to verify that everything looks good before I plug it in. From the caps up top, I could tell that someone had done some work before, but now I've opened it up and see that someone did much more work than I assumed. I...
  9. cocovinyl176

    Tannoy Arden 3828 15'

    Hi All, Wondering if anyone out there have or had any experience with Tannoy Arden 3828 series. Pros/Cons? I have an opportunity to grab a set for under 1k Usd, but understand these may not be as desirable as HPD/385 series. I also have a chance to grab a set of Belvedere 12' Golds for around...
  10. FireGuruMN

    Dynaco ST70 Mystery Modification

    I recently acquired (finally) a Dynaco ST70 for a reasonable expenditure. I intend to do the obvious things like replace defective caps and clean the pots. And replace the ORIGINAL Dynaco output tubes. But after cleaning out the spider webs I found some unwelcomed modifications. Here is a...
  11. poorbastards

    Dynaco St70 hum. Not so subtle on my Klipsch kg4.2s!

    I bought a st70 a few days ago. There wasn't any hum when I first used it but wanted to wait until I had installed a potentiometer to fully test/use it. The prior owner installed a different switch for power and that sparked on me last night,I went in and cleaned up the connections and there is...
  12. CoolOhm

    Help Needed with a New VTA-70

    Hello Fellow AK'ers: Well I finally went out and got myself a tube amp! I have never heard one before and the curiosity got the better of me. Had my heart set on an Dyna ST-35 but this VTA-70 came up and the price was right... Looking for some opinions and advice prior to powering it up and...
    • CoolOhm
    • Thread
    • dynaco st-70 st70 vta-70 vta70
    • Replies: 15
    • Forum: Tube Audio
  13. TellMeWhy

    Dynaco A25 / M25X Tweeter upgrade question

    I have been using and enjoying these funny Dynaco's or Scan Dyna A25 / M25X hybrids (whatever they are) and whilst the sound is good, am toying with the idea of swapping the 2 small Peerless drivers out for a single tweeter, either the original SEAS H087 or perhaps the new equivalent Seas...
    • TellMeWhy
    • Thread
    • dynaco dynaco a25 scanspeak seas
    • Replies: 5
    • Forum: Speakers
  14. D

    Newbie Needs help with Dynaco Tube MK iii Purchase. Should I pull the trigger?

    • DenverJW
    • Thread
    • dynaco dynaco mk iii monoblock amplifier monoblocks tube
    • Replies: 9
    • Forum: Tube Audio
  15. J

    Dynakit ST70 Complete restoration Project

    This is the beginning of what is the second phase of a greater project going back several years, that being the initial salvaging of this amplifier after being found stored in a Florida attic for over 40 years. For this effort a complete video series exists where the amplifier was brought to a...
    • JRUBIN
    • Thread
    • dyna dynaco dynaco st-70 dynakit st70 restoration st-70 st70
    • Replies: 15
    • Forum: Tube Audio
  16. yoho

    Dynaco “Amazing Bass” subwoofer

    Does anyone have experience with this little guy?
    • yoho
    • Thread
    • amazing bass dynaco subwoofer
    • Replies: 1
    • Forum: Speakers
  17. Rossmosis

    Dynaco SCA-35 Upgrade

    Hey all, I’m currently running a Dynaco SCA-35 into a pair of Pioneer HPM-60’s in my small listening space. Looking for some opinions on a few upgrade options: 1) Doing the SCA-35 Power Board mod (cheapest) 2) Giving a new Rega Brio a try 3) Wait to find a Fisher tube amp for a not-too-crazy...
  18. klitzy13

    Dynaco Stereo 120 Resistor Smoke

    I am hoping the brain trust can help me out on this one... I have a Stereo 120 that was previously worked on by someone other than myself. The output transistors and R16/R17 are replaced on the PC-14 left channel. The outputs were replaced by 2N3772's. Everything else in the unit appears to be...
    • klitzy13
    • Thread
    • dynaco dynaco st dynaco stereo 120
    • Replies: 18
    • Forum: Solid State
  19. mymonkey

    Bang and Olufsen M70 Speakers

    Just reinstalled drivers in a pair of B&O Beovox M70's and hooked them up. Casper in Chicago rebuilt them for me. Wow.. they are really crisp with great imaging and just the right amount of bass. I have a few $ invested in them but it was definitely worth it. Question, are the matching...
    • mymonkey
    • Thread
    • b&o drivers dynaco speaker stands speakers
    • Replies: 2
    • Forum: Speakers
  20. M

    Dynaco PAS-3X restoration for a klutz

    I have a PAS-3X that my father bought sometime between 1966 and 1970. It was his preamp throughout my childhood and holds a lot of sentimental value for me. It works but is in obvious need of a proper restoration. Jacks are loose, I doubt the tubes were ever replaced, it sounds muddy and the two...
  21. Cow Addict

    Happy to have found AK!

    Finishing up my vintage system... Open to informed suggestions and comments. KLH Model 5's - Crossovers done and drivers re-sealed Snell Type A III's - Woofer inverted and crossovers done Conrad Johnson MF-80 MOSFET - Driving the Snell's Dynaco Mod - Driving the KLH's Accuphase C-200 - Re-cap'd...
    • Cow Addict
    • Thread
    • accuphase conrad johnson dynaco klh model 5 snell type a iii
    • Replies: 18
    • Forum: Introductions
  22. ColonelKurtz

    Closest Match Dynaco Grill Cloth Source

    After hours of searching online, I came across what looks to be the closest match to Dynaco A25 grill cloth that I've seen, maybe even the exact fabric. Below is a small jpeg preview of the exact source fabric, and here is the link...
  23. kcline

    New Preamp for Main Systems

    Just in last weekend PrimaLuna DiaLogue Premium Pre-amp, replacing in this room my ARC SP-9 MK-2 and Jolida Pre. Much better sound then either pre Deeper and wider soundstage with more detail. Still need to connect to Polk Audio SRS speaker thru the Harry Gates Mem. amp, but have to move the...
  24. bluenote79

    Vintage gear VS new gear

    I'm relatively new to the game and am trying to make a decision between purchasing some vintage gear or going with new gear. I would greatly appreciate some basic advice from the masters here. My prerequisites: First and foremost, I am tired of my current vintage gear breaking down on me. I...
    • bluenote79
    • Thread
    • dynaco mcintosh mcintosh c24 new paradigm monitor project debut carbon rega brio rega planar 2 vintage vintage pioneer receiver
    • Replies: 77
    • Forum: General Audio Discussion
  25. timmage89

    Dynaco 150 (Van Alstine Mod)

    I picked up a Dynaco 150 from the original owner. He built it from a kit, then had it modded in the 90's by Van Alstine here in Burnsville MN. Well I got it home and hooked it up to my test system, seems to work great. Popped the cover off and holy cow, MASSIVE capacitors in this thing. I...
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