November 13, 2026 at 11:57 PM
I didn't really get into vintage hifi until a few years ago but it appears I'm making up for lost time. 🤣
#hifi #budgethifi #sansui #advent #dynaco #quad #nowplaying
#hifi #budgethifi #sansui #advent #dynaco #quad #nowplaying
November 7, 2026 at 12:18 AM
I didn't really get into vintage hifi until a few years ago but it appears I'm making up for lost time. 🤣
#hifi #budgethifi #sansui #advent #dynaco #quad #nowplaying
#hifi #budgethifi #sansui #advent #dynaco #quad #nowplaying
Listening tonight to my Sansui AU-777A as a preamp, into another Dynaco in the house - an ST80, a solid state poweramp from the early 70's.
I cleaned up the chassis and replaced the electrolytic caps this afternoon.
I cleaned up the chassis and replaced the electrolytic caps this afternoon.
October 30, 2026 at 1:57 AM
Listening tonight to my Sansui AU-777A as a preamp, into another Dynaco in the house - an ST80, a solid state poweramp from the early 70's.
I cleaned up the chassis and replaced the electrolytic caps this afternoon.
I cleaned up the chassis and replaced the electrolytic caps this afternoon.
Even though I increased the size of all the big caps they'll all teeny compared to the oldies.
Not a highly regarded amp but it sounds pretty good to me. 🎶
#dynaco #dynacost80 #hifi #budgethifi #sansui #sansuiau777a #diy #fixit
Not a highly regarded amp but it sounds pretty good to me. 🎶
#dynaco #dynacost80 #hifi #budgethifi #sansui #sansuiau777a #diy #fixit
October 30, 2026 at 1:57 AM
Even though I increased the size of all the big caps they'll all teeny compared to the oldies.
Not a highly regarded amp but it sounds pretty good to me. 🎶
#dynaco #dynacost80 #hifi #budgethifi #sansui #sansuiau777a #diy #fixit
Not a highly regarded amp but it sounds pretty good to me. 🎶
#dynaco #dynacost80 #hifi #budgethifi #sansui #sansuiau777a #diy #fixit
#halfer #haflerdh200 #davidhafler #dynaco #supertramp #crimeofthecentury #nowplaying #hifi #budgethifi #vinylsky #vinylcommunity
October 18, 2026 at 5:09 PM
Had to try out the Dynaco ST70 on my AR 2ax speakers in my main listening spot. I'm using my Sansui AU-777A as a pre and had to make Kenny Burrell's Midnight Blue as my first play. Turntable is an AR XA91.
It all sounds like I should probably start smoking cigarettes again. 🤣
It all sounds like I should probably start smoking cigarettes again. 🤣
October 17, 2026 at 11:52 PM
Had to try out the Dynaco ST70 on my AR 2ax speakers in my main listening spot. I'm using my Sansui AU-777A as a pre and had to make Kenny Burrell's Midnight Blue as my first play. Turntable is an AR XA91.
It all sounds like I should probably start smoking cigarettes again. 🤣
It all sounds like I should probably start smoking cigarettes again. 🤣
Still need to do some fine tuning but got this old warhorse up and running. Will be nice to have tunes literally throwing off some warmth in the basement this winter!
#dynaco #dynacost70 #st70 #EL34 #hifif #budgethifi #nowplaying
#dynaco #dynacost70 #st70 #EL34 #hifif #budgethifi #nowplaying
October 16, 2026 at 6:24 PM
Still need to do some fine tuning but got this old warhorse up and running. Will be nice to have tunes literally throwing off some warmth in the basement this winter!
#dynaco #dynacost70 #st70 #EL34 #hifif #budgethifi #nowplaying
#dynaco #dynacost70 #st70 #EL34 #hifif #budgethifi #nowplaying
René Christensen then shows how Deep Neural Networks can serve as fast surrogate models in COMSOL Multiphysics apps. Dan Fraser concludes his Dynaco ST-70 Series 3 series with the power output stage, the part of the amplifier that makes the music.
October 13, 2026 at 7:02 PM
René Christensen then shows how Deep Neural Networks can serve as fast surrogate models in COMSOL Multiphysics apps. Dan Fraser concludes his Dynaco ST-70 Series 3 series with the power output stage, the part of the amplifier that makes the music.
(Pause in karate fight)
Have to ask: St-70 as in dynaco?
Have to ask: St-70 as in dynaco?
October 9, 2026 at 11:38 PM
(Pause in karate fight)
Have to ask: St-70 as in dynaco?
Have to ask: St-70 as in dynaco?
they were, uh, still not cheap, the thrift store knew what they had (unlike the dynaco preamp i got there). but still way cheaper than any other resale option
October 8, 2026 at 5:10 PM
they were, uh, still not cheap, the thrift store knew what they had (unlike the dynaco preamp i got there). but still way cheaper than any other resale option
'68 Sunn Sceptre
Dynaco based guitar amp using its transformers and circuit elements. Very clean and loud.
60 watts (?) from 2- KT68 power tubes. Tube preamp, reverb and rectifier.
Dynaco based guitar amp using its transformers and circuit elements. Very clean and loud.
60 watts (?) from 2- KT68 power tubes. Tube preamp, reverb and rectifier.
September 26, 2026 at 11:47 AM
'68 Sunn Sceptre
Dynaco based guitar amp using its transformers and circuit elements. Very clean and loud.
60 watts (?) from 2- KT68 power tubes. Tube preamp, reverb and rectifier.
Dynaco based guitar amp using its transformers and circuit elements. Very clean and loud.
60 watts (?) from 2- KT68 power tubes. Tube preamp, reverb and rectifier.
Dynaco reopened Sept. 21 after a January fire, with rapid rebuilding and safety approvals leading to immediate, sustained crowding.
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September 24, 2026 at 5:33 PM
Dynaco reopened Sept. 21 after a January fire, with rapid rebuilding and safety approvals leading to immediate, sustained crowding.
Dynaco reopened Sept. 21 after a January fire, with rapid rebuilding and safety approvals leading to immediate, sustained crowding.
Save What Matters
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September 24, 2026 at 5:33 PM
Dynaco reopened Sept. 21 after a January fire, with rapid rebuilding and safety approvals leading to immediate, sustained crowding.
3/ which is based on Dynaco circuits and transformers...giving a hi-fi signal output. The Frenzel compliments it, from very clean with freqs range boosted to a warm overdriven sound + adds the missing master vol needed on the amp; allowing the overdrive without massive vol.
End
End
September 19, 2026 at 8:37 PM
3/ which is based on Dynaco circuits and transformers...giving a hi-fi signal output. The Frenzel compliments it, from very clean with freqs range boosted to a warm overdriven sound + adds the missing master vol needed on the amp; allowing the overdrive without massive vol.
End
End
The October issue closes with Dan Fraser’s latest article on designing the Dynaco ST-70 Series 3 tube amplifier. This time, he discusses the valuable lessons of getting the routing right.
September 11, 2026 at 10:11 PM
The October issue closes with Dan Fraser’s latest article on designing the Dynaco ST-70 Series 3 tube amplifier. This time, he discusses the valuable lessons of getting the routing right.
"Hng~ Fuuuuck, I knew ye'd fuckin' kill it in one of my dresses, darling~", the cat purrs as he's enjoying his plus-one~
"Ough, I hope you know I stole that from a Moran-Dynaco Shareholder's wife when I hijacked a pleasure ship a few years back~ Fuck you look like prime plunder-bait~"
"Ough, I hope you know I stole that from a Moran-Dynaco Shareholder's wife when I hijacked a pleasure ship a few years back~ Fuck you look like prime plunder-bait~"
August 29, 2026 at 5:00 AM
"Hng~ Fuuuuck, I knew ye'd fuckin' kill it in one of my dresses, darling~", the cat purrs as he's enjoying his plus-one~
"Ough, I hope you know I stole that from a Moran-Dynaco Shareholder's wife when I hijacked a pleasure ship a few years back~ Fuck you look like prime plunder-bait~"
"Ough, I hope you know I stole that from a Moran-Dynaco Shareholder's wife when I hijacked a pleasure ship a few years back~ Fuck you look like prime plunder-bait~"
They recorded all of the pre-1972 stuff on racks of Dynaco Stereo 70s. 🤯
March 10, 2025 at 2:22 AM
They recorded all of the pre-1972 stuff on racks of Dynaco Stereo 70s. 🤯
Hello, Any Dynaco or Heathkit or other tube Hi-Fi enthusiasts here?
February 18, 2025 at 11:43 PM
Hello, Any Dynaco or Heathkit or other tube Hi-Fi enthusiasts here?
Original Dynaco chassis VTA upgrade and actually gold plated
January 4, 2025 at 11:39 PM
Original Dynaco chassis VTA upgrade and actually gold plated
Someone had disconnected the bass and treble controls on this nice 55 year old Dynaco preamp. I removed 4 wires, installed 12 wires, cleaned all the switches and potentiometers, sockets, fiddled with the power supply and got it working right. Took about an hour.Sounds pretty good for 1970 technology
April 7, 2026 at 3:47 PM
Someone had disconnected the bass and treble controls on this nice 55 year old Dynaco preamp. I removed 4 wires, installed 12 wires, cleaned all the switches and potentiometers, sockets, fiddled with the power supply and got it working right. Took about an hour.Sounds pretty good for 1970 technology
Also, the Dynaco ST-70 got its final mod a few weeks ago and is now switchable between ultralinear pentode and triode push-pull. Been running it in the latter mode to great effect. #vacuumtubes
July 27, 2025 at 8:18 PM
Also, the Dynaco ST-70 got its final mod a few weeks ago and is now switchable between ultralinear pentode and triode push-pull. Been running it in the latter mode to great effect. #vacuumtubes
Keen eyed followers will note an equipment change: I swapped out my Thorens and Dynaco for the SL-1210 and Quad 34/306 stack. Toddler and a DJ on the guest list for thanksgiving, so no burned fingers or weird cueing for my guests!
November 28, 2024 at 3:15 AM
Keen eyed followers will note an equipment change: I swapped out my Thorens and Dynaco for the SL-1210 and Quad 34/306 stack. Toddler and a DJ on the guest list for thanksgiving, so no burned fingers or weird cueing for my guests!
Those are Tannoy HPD315s in custom cabs, which are driven by either a Dynaco ST-70 or a Quad 306 depending on my mood. I restored, modified, and tweaked out all of this stuff from non-op condition… a labor of love but more than worth it for recordings like these!
November 27, 2024 at 6:07 PM
Those are Tannoy HPD315s in custom cabs, which are driven by either a Dynaco ST-70 or a Quad 306 depending on my mood. I restored, modified, and tweaked out all of this stuff from non-op condition… a labor of love but more than worth it for recordings like these!