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Topics	Replies	Author	Views	Last Posts
ST-70 Filament voltage?	7	tubey1	502	Fri Jan 28, 2022 11:16 am by Brap
m-125 spice simulation impedance matching	4	Chad Spackman	727	Thu Jan 27, 2022 9:54 pm by Chad Spackman
ST120 VTA Driver board build.	4	Gabriel	609	Thu Jan 27, 2022 9:19 pm by Gabriel
IEC panel mount power socket.	4	Gabriel	567	Wed Jan 26, 2022 12:47 pm by peterh
Dyna SC-35 stereo vacuum tube amp	1	rfitts46	665	Tue Jan 25, 2022 1:44 pm by peterh
SCA-35 Rebuild	6	GSX455	529	Tue Jan 25, 2022 1:32 am by peterh
Driver board options	14	Telescope12	1564	Sun Jan 23, 2022 3:06 pm by tubey1
VTA-Board upgrade ST-70?	1	tubey1	480	Sun Jan 23, 2022 3:03 pm by Roy Mottram
SP9 Preamp Hum - Only w/Phono Tubes	1	tjplatt	430	Fri Jan 21, 2022 2:04 pm by Roy Mottram
ST-120 Rectifier Options?	11	98indypacer	1159	Fri Jan 21, 2022 1:51 pm by Roy Mottram
VTA ST-120 Wiring For 16ohm Speakers	1	Mad Dog	326	Fri Jan 21, 2022 1:25 pm by Roy Mottram
VTA ST120 and Infinity Kappa 7's	2	thevic24	277	Fri Jan 21, 2022 11:40 am by thevic24
ST120 click/flash in one tube	16	grosen	1039	Thu Jan 20, 2022 5:18 pm by Bob Latino
Auto Bias board for VTA ST120 - do the LEDs really need to be visible	3	ChetJettison	548	Tue Jan 18, 2022 2:43 pm by New2Tubez
Comprehensive tube list???	9	Rbertalotto	2299	Mon Jan 17, 2022 7:12 pm by hottyson
VTA-120 all in 1 (almost) PCB	8	Chad Spackman	1240	Sat Jan 15, 2022 8:43 am by Chad Spackman
ignore, posted in the wrong place.	0	misterc57	291	Fri Jan 14, 2022 3:06 pm by misterc57
M-125 break-in with Dummy load resistor.	2	Beanhead	429	Wed Jan 12, 2022 4:15 pm by Beanhead
new amp style - vote your opinion ! 1, 2	32	Roy Mottram	2555	Sun Jan 09, 2022 1:24 pm by New2Tubez
Panor / Dynaco ST80 - distortion one channel at higher volumes	12	boeingpilot	1304	Fri Jan 07, 2022 5:26 am by boeingpilot
PAS Signal Chain Weirdness... What should a square wave look like as it goes through the gain stages?	4	kenmwallace	458	Fri Jan 07, 2022 12:39 am by Roy Mottram
PAS3X Phono Pre-amp	2	radiojer	635	Thu Jan 06, 2022 1:12 pm by audioregenesis
Hook up wire for SP12/PH6 combo	1	duder1982	402	Sun Jan 02, 2022 9:52 pm by duder1982
Taking a brake everyone....:-)	2	Tom Pickett	885	Thu Dec 30, 2021 4:55 pm by New2Tubez
Original Dynaco ST-70 120hz intermittent low hum with new EL34 tubes	5	Bainbridge	850	Wed Dec 29, 2021 1:41 pm by Seamus
Hum problem on one channel	6	Telescope12	512	Wed Dec 29, 2021 10:50 am by corndog71
ST-70 VTA Driver and Triode Cap Board upgrade results.	0	Sfguitarworks	695	Mon Dec 27, 2021 5:15 pm by Sfguitarworks
Help with new to me ST-120 Stereo Amplifier - Scratchy noise in right channel 1, 2	30	Peacemaker	2037	Tue Dec 14, 2021 9:19 pm by MechEngVic
Scratchy noise noise from your amp	0	rembrandt!	432	Tue Dec 14, 2021 6:32 am by rembrandt!
VTA ST 70 16 ohm output to speakers	9	Dave_in_Va	1162	Mon Dec 13, 2021 8:46 pm by Mad Dog
Stepper Type Level Control available???	9	Rbertalotto	692	Mon Dec 13, 2021 4:07 pm by Bob Latino
NOOB Here...	10	Mission	1427	Sat Dec 11, 2021 8:42 pm by Mission
VTA M-125 hum	2	syrinxcs	745	Sat Dec 11, 2021 2:57 pm by Tom
Selling ST120...Maybe	5	Rbertalotto	976	Sat Dec 11, 2021 2:03 pm by Rbertalotto
Eastern PA help needed with st70	4	Huck	641	Thu Dec 09, 2021 3:51 pm by WLT
ST120 left channel dropping out - problem solved !	15	ChetJettison	752	Wed Dec 08, 2021 8:29 am by Bob Latino
ST120 Driver Tubes: Should they all be the same?	4	ChetJettison	933	Tue Dec 07, 2021 9:26 am by DavidR
A-430 or A-431 winding	5	fobya71	1486	Thu Dec 02, 2021 9:44 am by stewdan
KEF LS50 Meta with VTA ST120	1	Rbertalotto	467	Thu Nov 25, 2021 6:42 pm by Bob Latino
Tetrode Tubes with Triode Switch Mod on Dynakit St70	3	immemory	605	Sat Nov 20, 2021 3:06 pm by peterh
Anyone tried jb Capacitors in a PAS	1	breading	559	Fri Nov 19, 2021 12:03 pm by corndog71
A bright flash, a low dull thunk and diminished volume 1, 2, 3	63	Mr C	3904	Thu Nov 18, 2021 6:29 pm by Andy Jersey
Average life of an OT?	5	Guest	1080	Thu Nov 18, 2021 4:19 pm by Jim McShane
Pas Loses audio In One Channel	2	rudes	428	Wed Nov 17, 2021 8:22 pm by Dave_in_Va
Thank you Bob Latino...	22	AmpedUp	2127	Wed Nov 17, 2021 8:49 am by Section1
M-125 volume problem - fixed ! 1, 2	27	IntarsiaGuy	1749	Mon Nov 15, 2021 8:42 pm by Bob Latino
My life is ruined...	5	rustybutt	1623	Fri Nov 12, 2021 6:11 pm by Roy Mottram
Analog Bias Meters For The VTA ST-120	12	Tom Pickett	2408	Fri Nov 12, 2021 5:59 pm by Roy Mottram
Dynaco SCA-35 hum/ground issue	2	Vimmy	766	Fri Nov 12, 2021 1:33 pm by boscode
TriodeUSA ST-70 amp clipping below rated output	16	jeffjmr	1278	Mon Nov 01, 2021 1:45 pm by jeffjmr