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Topics | Replies | Author | Views | Last Posts | ||
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Announcement: dual rectifiers for ST120 & ST70 amps 1, 2 | 30 | Roy Mottram | 3889 | Sat Dec 02, 2023 6:27 pm by GAflubug | ||
Announcement: Tubes IN STOCK - Tung-Sol, Gold Lion, Electro-Harmonix, Svetlana, Sovtek, JJ | 2 | Dan W | 799 | Thu Sep 07, 2023 9:00 pm by Dan W | ||
Announcement: blown tubes | 0 | Roy Mottram | 1288 | Thu Jun 08, 2023 7:51 pm by Roy Mottram | ||
ST70 power transformer | 5 | itrfguy | 738 | Fri Jan 05, 2024 10:17 pm by Cubdriver | ||
Dynaco PAS 4 Phono stage is almost so low it's inaudible | 14 | 45scratches | 428 | Wed Jan 03, 2024 9:10 pm by Tubes4ever | ||
VTA ST-70 problem | 6 | Chris A | 719 | Wed Jan 03, 2024 9:03 am by Chris A | ||
Stereo 35 Hum In Both Channels | 8 | HifiGuy | 668 | Wed Jan 03, 2024 8:20 am by smoorenc | ||
12AU7 Tube Choice | 6 | snip73 | 384 | Wed Jan 03, 2024 7:46 am by snip73 | ||
ST70 Bias Unstable, Oscillation | 17 | NIBW | 868 | Tue Jan 02, 2024 11:25 am by Solder Slinger | ||
Right channel output intermittent | 0 | ljderek | 192 | Mon Jan 01, 2024 9:49 pm by ljderek | ||
KT88's in the ST70? 1, 2 | 27 | Guest | 6732 | Mon Jan 01, 2024 8:19 pm by fedoragent | ||
New PAS Build | 0 | jwb474 | 172 | Sun Dec 31, 2023 6:39 pm by jwb474 | ||
AC Voltage On Chassis | 2 | rudes | 263 | Sat Dec 30, 2023 10:15 am by rudes | ||
EL 34 v. KT 88 | 21 | rwferr | 11360 | Fri Dec 22, 2023 8:09 pm by fedoragent | ||
VTA-ST120: variac fuse blows when the TDR switches on the "power circuits". | 7 | alexbramford | 693 | Fri Dec 22, 2023 12:59 pm by peterh | ||
7 lug terminal strip wiring | 2 | steve46 | 395 | Sun Dec 17, 2023 11:31 am by steve46 | ||
Has anyone tried these tubes in St-120? PREFERRED SERIES KT88 | 1 | smoorenc | 348 | Fri Dec 15, 2023 1:00 am by ArlanB | ||
Wattage of 10 ohm bias sensing resistors. | 2 | Viridian2 | 241 | Sat Dec 09, 2023 5:52 pm by Viridian2 | ||
ST70 el34 bias low | 13 | directmetalmonster | 1388 | Sat Dec 09, 2023 12:57 pm by Bob Latino | ||
VTA M-125's and 16 ohm speakers | 5 | Audiosoldier1979 | 485 | Fri Dec 01, 2023 11:36 am by Seamus | ||
Bias PAnel meter install | 2 | Brap | 453 | Fri Dec 01, 2023 9:40 am by Brap | ||
Telefunken Black Diamond ECC82 | 4 | Brap | 340 | Fri Dec 01, 2023 9:35 am by Brap | ||
Update to Post from last Summer | 1 | mwagn_1 | 341 | Thu Nov 30, 2023 11:59 pm by Wharfcreek | ||
SP14 losing right channel when warm | 6 | Dusterdave | 1694 | Mon Nov 27, 2023 11:42 pm by Dusterdave | ||
VTA ST-120 | 5 | stelian99 | 861 | Wed Nov 22, 2023 2:09 pm by smoorenc | ||
REPLACED power transformer ST-70 | 1 | corey thompson | 480 | Tue Nov 21, 2023 1:16 pm by Dan W | ||
ST-70 speaker question | 11 | dbster | 743 | Fri Nov 17, 2023 1:21 pm by Brap | ||
Newbie problems with a ST-70 rebuild VTA70 driver board / bias display: no sound 1, 2 | 25 | fmzip | 1310 | Thu Nov 16, 2023 2:21 pm by Roy Mottram | ||
Wow freshly restored . But it now does not work s70 . | 6 | corey thompson | 381 | Thu Nov 16, 2023 8:54 am by Bob Latino | ||
Vinyl records now outselling CD's ! hard to believe ? | 4 | Bob Latino | 529 | Mon Nov 13, 2023 3:41 am by jwb474 | ||
6.8K MK4 Can Cap Resistor 1/2 or 1 Watt? | 2 | bubbasweet | 335 | Mon Oct 30, 2023 8:44 am by WLT | ||
High bias on Mark IV amps | 10 | stevenally | 2980 | Thu Oct 26, 2023 4:30 pm by bubbasweet | ||
PAS4 Preamp 1, 2 | 34 | StereoGaryo | 11971 | Sun Oct 22, 2023 11:21 am by Mazen0822 | ||
5AR4 Tubes Keep Failing | 2 | rudes | 558 | Sat Oct 21, 2023 9:55 pm by Roy Mottram | ||
SP14 Preamp assembly project | 1 | Rafael0510 | 376 | Sat Oct 21, 2023 9:47 pm by Roy Mottram | ||
VTA-ST120 - Low bias on all four power tubes | 4 | alexbramford | 565 | Tue Oct 17, 2023 8:07 pm by alexbramford | ||
ST-120 Dual Rectifier Upgrade | 3 | penguinpages | 1317 | Mon Oct 16, 2023 9:09 am by smoorenc | ||
Where is tubes4hifi dot com? | 2 | ttocs | 421 | Sun Oct 15, 2023 9:35 am by Dan W | ||
New Erhard PAS Upgrade Forum | 0 | jwb474 | 377 | Fri Oct 13, 2023 11:15 pm by jwb474 | ||
VTA-70 Bias Resistor | 7 | Benevox | 475 | Wed Oct 11, 2023 3:21 pm by itrfguy | ||
PAS 2 Hum identification and isolation help | 1 | bubbasweet | 199 | Thu Oct 05, 2023 9:39 pm by bubbasweet | ||
Think I toasted my Power Transformer, how do I test it? | 10 | evangerardo | 1276 | Wed Oct 04, 2023 2:13 am by evangerardo | ||
ST120 power section oscillation using Pavel's AB-Qi ST70/120 autobias board | 21 | HDroller | 1213 | Wed Oct 04, 2023 1:20 am by pavlikkkk | ||
Little sound from left channel | 5 | Scillitoe | 376 | Mon Oct 02, 2023 5:58 pm by peterh | ||
No sound from system | 5 | Dusterdave | 369 | Mon Oct 02, 2023 11:49 am by Dusterdave | ||
ST70 Voltages High | 3 | moodyj2000 | 292 | Tue Sep 26, 2023 4:27 pm by Bob Latino | ||
Catastrophic failure of my VTA ST70 | 11 | James_Weir | 993 | Fri Sep 22, 2023 1:10 pm by James_Weir | ||
ST-70 Dual Rectifier V2 install questions | 1 | James_Weir | 530 | Fri Sep 22, 2023 3:25 am by James_Weir | ||
Dynaco St-70 Driver Board Resistor | 6 | rudes | 449 | Thu Sep 21, 2023 8:55 am by WLT | ||
Picture of ST-70 | 0 | dbster | 377 | Wed Sep 20, 2023 7:28 pm by dbster | ||
Music Stopped , Variac Fuse blue for VTA-120 Amp - fixed ! | 2 | Hops | 406 | Sat Sep 16, 2023 6:44 pm by Hops | ||
Dynaco MK III paint color question | 0 | WLT | 333 | Sat Sep 16, 2023 10:25 am by WLT | ||
ST70 PCB Cover | 4 | MarkS57 | 414 | Wed Sep 13, 2023 12:12 pm by StereoGaryo |
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