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Topics	Replies	Author	Views	Last Posts
Dynaco St-70 Driver Board Resistor	6	rudes	565	Thu Sep 21, 2023 8:55 am by WLT
Picture of ST-70	0	dbster	454	Wed Sep 20, 2023 7:28 pm by dbster
Music Stopped , Variac Fuse blue for VTA-120 Amp - fixed !	2	Hops	493	Sat Sep 16, 2023 6:44 pm by Hops
Dynaco MK III paint color question	0	WLT	400	Sat Sep 16, 2023 10:25 am by WLT
ST70 PCB Cover	4	MarkS57	500	Wed Sep 13, 2023 12:12 pm by StereoGaryo
Replaced my Genalex kT66 with the newer Tuns-sol 7581A tubes	18	truebluephil	2374	Wed Sep 13, 2023 9:54 am by knotscott
A stepped attenuator for your ST-70/ST-120	16	Bob Latino	11085	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	1017	Thu Sep 07, 2023 9:00 pm by Dan W
Paoli 60M questions	12	FritoP	1110	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	300	Sun Sep 03, 2023 9:33 pm by Big Harry
wiring new banana speaker posts with original ST 70 output transformers	3	James_Weir	638	Sat Sep 02, 2023 2:47 pm by Knobs
Adding auxillary filament transformer?	3	arficus	465	Tue Aug 29, 2023 10:10 am by New2Tubez
LM344 possible failure on vta st-70 driver board.	4	fzapped	390	Sun Aug 27, 2023 5:08 pm by Bob Latino
Wire Extension - Proper method	2	penguinpages	424	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	1877	Sat Aug 26, 2023 12:22 pm by Seamus
SDS LABS Capacitor Board Dynaco PAS 3	4	fmzip	405	Fri Aug 25, 2023 9:28 pm by fmzip
Tube Tester - Recommendations	8	penguinpages	1256	Fri Aug 25, 2023 7:57 pm by Seamus
ST-120 - Debug / Repair Left Rear 20vdc	12	penguinpages	595	Thu Aug 24, 2023 10:01 pm by penguinpages
Speaker AB Switch	4	rwbaker	360	Sat Aug 19, 2023 12:52 am by peterh
Hiss/Whoosh Sound ST-120	13	krcrisp	669	Fri Aug 18, 2023 7:49 pm by Roy Mottram
Coupling Cap Substitutions?	15	vtshopdog	3607	Thu Aug 17, 2023 8:14 am by Buck_R0gers
ST70 bias is .56 instead of 1.56	6	CAEMI	596	Thu Aug 17, 2023 8:09 am by Buck_R0gers
Capacitor and sound quality	18	Sprags	7430	Fri Aug 11, 2023 12:48 am by pedrocols
Power switch wiring.	3	Njrob	515	Thu Aug 10, 2023 4:32 pm by Roy Mottram
digital bias meters	0	Roy Mottram	670	Thu Aug 10, 2023 2:14 pm by Roy Mottram
Tubes for VTA ST-120	11	Hops	1369	Sat Aug 05, 2023 10:44 pm by Njrob
ANNOUNCEMENT about Tubes4HiFi	2	Roy Mottram	4578	Tue Aug 01, 2023 12:39 am by New2Tubez
my first st 70	7	Scott from west seneca	456	Thu Jul 27, 2023 12:16 pm by peterh
Vtast120 and the new fuse kit questions.	3	Njrob	590	Thu Jul 27, 2023 11:30 am by Roy Mottram
New (Old) Guy	3	mwagn_1	662	Fri Jul 14, 2023 5:38 pm by Brap
Hammond 1650E	4	Junksleep	673	Thu Jul 13, 2023 8:09 pm by Dan W
Ph 14 looking manual	1	Jim	1084	Mon Jul 03, 2023 4:59 pm by Dale Stevens
looking for volume and selector knobs for dynaco pas2 1, 2	34	vuejaday	2017	Fri Jun 30, 2023 12:44 pm by vuejaday
PAS 3 Shielded Phono Cabling	1	moodyj2000	1190	Thu Jun 29, 2023 7:04 pm by jwb474
SCA 35 trouble	8	Junksleep	878	Tue Jun 27, 2023 6:53 pm by Roy Mottram
Octal driver board when used for VTA ST-120	1	StevieRay	1397	Tue Jun 27, 2023 6:51 pm by Roy Mottram
I have a pair of Dynaco original Mark IV's. One is dead. The other is playing but.....	2	ng8264723	548	Mon Jun 26, 2023 8:50 am by WLT
blown tubes	1	Roy Mottram	733	Thu Jun 08, 2023 9:14 pm by New2Tubez
blown tubes	0	Roy Mottram	1491	Thu Jun 08, 2023 7:51 pm by Roy Mottram
VTA M-125 amp videos	7	Bob Latino	1234	Thu Jun 08, 2023 4:07 pm by Dan W
PH 14 phone amp hum	4	Jim	544	Tue Jun 06, 2023 1:36 pm by Jim
Ruby 5U4GC Red Plating	18	Tom Pickett	1286	Mon May 29, 2023 4:41 pm by Roy Mottram
Preamplifier & Power Amplifier Compatibility	3	TN Allen	641	Mon May 29, 2023 4:33 pm by Roy Mottram
A Couple Of Front Panel Queries	7	jwb474	734	Mon May 29, 2023 11:26 am by jwb474
Ph 14 phone amp	2	Jim	471	Mon May 29, 2023 8:00 am by Jim
Sound stopped working on VTA120	8	Pezcore67	684	Thu May 25, 2023 4:17 pm by Pezcore67
M-125 : Socket screws	12	SixOhms	1112	Tue May 23, 2023 11:06 am by Seamus
MKIII Bias Not Controllable	8	snip73	858	Mon May 22, 2023 12:43 pm by Seamus
Poor man's solid state replacement rectifier for Dynaco ST-70, Mark II, Mark III or Mark IV	16	Bob Latino	13983	Fri May 19, 2023 12:27 pm by stewdan
Dynaco A-25 Mark2 1978	0	Mark Korda	404	Mon May 15, 2023 4:14 pm by Mark Korda