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Topics	Replies	Author	Views	Last Posts
Wattage of 10 ohm bias sensing resistors.	2	Viridian2	300	Sat Dec 09, 2023 5:52 pm by Viridian2
ST70 el34 bias low	13	directmetalmonster	1545	Sat Dec 09, 2023 12:57 pm by Bob Latino
dual rectifiers for ST120 & ST70 amps 1, 2	30	Roy Mottram	4674	Sat Dec 02, 2023 6:27 pm by GAflubug
VTA M-125's and 16 ohm speakers	5	Audiosoldier1979	546	Fri Dec 01, 2023 11:36 am by Seamus
Bias PAnel meter install	2	Brap	540	Fri Dec 01, 2023 9:40 am by Brap
Telefunken Black Diamond ECC82	4	Brap	391	Fri Dec 01, 2023 9:35 am by Brap
Update to Post from last Summer	1	mwagn_1	395	Thu Nov 30, 2023 11:59 pm by Wharfcreek
SP14 losing right channel when warm	6	Dusterdave	1756	Mon Nov 27, 2023 11:42 pm by Dusterdave
VTA ST-120	5	stelian99	988	Wed Nov 22, 2023 2:09 pm by smoorenc
REPLACED power transformer ST-70	1	corey thompson	557	Tue Nov 21, 2023 1:16 pm by Dan W
ST-70 speaker question	11	dbster	805	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	1640	Thu Nov 16, 2023 2:21 pm by Roy Mottram
Wow freshly restored . But it now does not work s70 .	6	corey thompson	430	Thu Nov 16, 2023 8:54 am by Bob Latino
Vinyl records now outselling CD's ! hard to believe ?	4	Bob Latino	585	Mon Nov 13, 2023 3:41 am by jwb474
6.8K MK4 Can Cap Resistor 1/2 or 1 Watt?	2	bubbasweet	376	Mon Oct 30, 2023 8:44 am by WLT
High bias on Mark IV amps	10	stevenally	3180	Thu Oct 26, 2023 4:30 pm by bubbasweet
PAS4 Preamp 1, 2	34	StereoGaryo	12644	Sun Oct 22, 2023 11:21 am by Mazen0822
5AR4 Tubes Keep Failing	2	rudes	626	Sat Oct 21, 2023 9:55 pm by Roy Mottram
SP14 Preamp assembly project	1	Rafael0510	443	Sat Oct 21, 2023 9:47 pm by Roy Mottram
VTA-ST120 - Low bias on all four power tubes	4	alexbramford	683	Tue Oct 17, 2023 8:07 pm by alexbramford
ST-120 Dual Rectifier Upgrade	3	penguinpages	1609	Mon Oct 16, 2023 9:09 am by smoorenc
Where is tubes4hifi dot com?	2	ttocs	488	Sun Oct 15, 2023 9:35 am by Dan W
New Erhard PAS Upgrade Forum	0	jwb474	428	Fri Oct 13, 2023 11:15 pm by jwb474
VTA-70 Bias Resistor	7	Benevox	546	Wed Oct 11, 2023 3:21 pm by itrfguy
PAS 2 Hum identification and isolation help	1	bubbasweet	252	Thu Oct 05, 2023 9:39 pm by bubbasweet
Think I toasted my Power Transformer, how do I test it?	10	evangerardo	1334	Wed Oct 04, 2023 2:13 am by evangerardo
ST120 power section oscillation using Pavel's AB-Qi ST70/120 autobias board	21	HDroller	1314	Wed Oct 04, 2023 1:20 am by pavlikkkk
Little sound from left channel	5	Scillitoe	433	Mon Oct 02, 2023 5:58 pm by peterh
No sound from system	5	Dusterdave	420	Mon Oct 02, 2023 11:49 am by Dusterdave
ST70 Voltages High	3	moodyj2000	350	Tue Sep 26, 2023 4:27 pm by Bob Latino
Catastrophic failure of my VTA ST70	11	James_Weir	1056	Fri Sep 22, 2023 1:10 pm by James_Weir
ST-70 Dual Rectifier V2 install questions	1	James_Weir	650	Fri Sep 22, 2023 3:25 am by James_Weir
Dynaco St-70 Driver Board Resistor	6	rudes	535	Thu Sep 21, 2023 8:55 am by WLT
Picture of ST-70	0	dbster	428	Wed Sep 20, 2023 7:28 pm by dbster
Music Stopped , Variac Fuse blue for VTA-120 Amp - fixed !	2	Hops	465	Sat Sep 16, 2023 6:44 pm by Hops
Dynaco MK III paint color question	0	WLT	382	Sat Sep 16, 2023 10:25 am by WLT
ST70 PCB Cover	4	MarkS57	468	Wed Sep 13, 2023 12:12 pm by StereoGaryo
Replaced my Genalex kT66 with the newer Tuns-sol 7581A tubes	18	truebluephil	2238	Wed Sep 13, 2023 9:54 am by knotscott
A stepped attenuator for your ST-70/ST-120	16	Bob Latino	11015	Tue Sep 12, 2023 9:55 am by Dan W
Tubes IN STOCK - Tung-Sol, Gold Lion, Electro-Harmonix, Svetlana, Sovtek, JJ	2	Dan W	975	Thu Sep 07, 2023 9:00 pm by Dan W
Paoli 60M questions	12	FritoP	1056	Tue Sep 05, 2023 9:38 am by Wotan
Buzzing speaker noise and blue light in an output tube on start-up, ST-70	3	Aljaheejus	271	Sun Sep 03, 2023 9:33 pm by Big Harry
wiring new banana speaker posts with original ST 70 output transformers	3	James_Weir	607	Sat Sep 02, 2023 2:47 pm by Knobs
Adding auxillary filament transformer?	3	arficus	439	Tue Aug 29, 2023 10:10 am by New2Tubez
LM344 possible failure on vta st-70 driver board.	4	fzapped	370	Sun Aug 27, 2023 5:08 pm by Bob Latino
Wire Extension - Proper method	2	penguinpages	401	Sat Aug 26, 2023 4:53 pm by Big Harry
Need Help Getting Bias Right For KT66 On An Original ST70 1, 2	26	evangerardo	1807	Sat Aug 26, 2023 12:22 pm by Seamus
SDS LABS Capacitor Board Dynaco PAS 3	4	fmzip	374	Fri Aug 25, 2023 9:28 pm by fmzip
Tube Tester - Recommendations	8	penguinpages	1170	Fri Aug 25, 2023 7:57 pm by Seamus
What to do?	8	settador	450	Fri Aug 25, 2023 10:12 am by settador