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Topics	Replies	Author	Views	Last Posts
MK3 boards	2	doncrossman	682	Wed May 20, 2020 9:14 pm by doncrossman
Tubes4hifi SP8 Preamp	1	MechEngVic	996	Mon May 18, 2020 11:11 pm by Roy Mottram
Pas Hum/Buzz	1	rudes	513	Mon May 18, 2020 1:55 pm by peterh
EDIT-FIXED PAS 3 with Phono Hum on phono and special inputs	4	Midwestside	3204	Mon May 18, 2020 9:22 am by Midwestside
Power Conditioner?	7	Guest	1541	Mon May 18, 2020 2:34 am by peterh
AC Power Issue	3	jimmeq	948	Sun May 17, 2020 4:35 pm by jimmeq
Old person - old Stereo 70 - new to all this - kindergarten questions	5	JamesD	1177	Sun May 17, 2020 1:02 pm by gto1967ho
ST120 kit auto bias question (new to forum)	4	grosen	1375	Sun May 17, 2020 11:54 am by grosen
PAS 3X Dynaco	2	WPFW893FM	618	Sat May 16, 2020 1:49 pm by peterh
Dynaco Cap Board	10	Mark Korda	1233	Fri May 15, 2020 2:39 am by peterh
SP12 with PH14	5	DavidR	811	Thu May 14, 2020 10:37 am by DavidR
Audio Forums	3	shermanaudio	1128	Thu May 14, 2020 1:33 am by MechEngVic
ST-70 No Bias Voltage in Front Output Tubes	8	tjplatt	1148	Thu May 14, 2020 12:57 am by MechEngVic
Manual reset GFCI	2	Guest	737	Mon May 11, 2020 12:34 pm by Guest
Electrolytic caps in tube amps.. They do have life span ..	2	Bob Latino	868	Mon May 11, 2020 12:02 pm by Bob Latino
Good tube preamp under 600$	16	Midwestside	1931	Sat May 09, 2020 5:30 pm by MechEngVic
New Production CE Quad Cap Reliability (?) 1, 2	34	danmartinic	2344	Sun May 03, 2020 11:40 am by danmartinic
Electric Zap sound and shut off on my VTA ST-70	2	James_Weir	468	Sat May 02, 2020 9:17 pm by James_Weir
A week of listening to my VTA 70 and im hooked!	6	Midwestside	884	Fri May 01, 2020 10:50 am by Midwestside
PSVANE KT88-T MARK ii	1	rodulfo23	1094	Fri May 01, 2020 4:38 am by Halvis
Output Tube Arcing?	3	medphys	615	Tue Apr 28, 2020 1:57 pm by Bob Latino
NOS Mullard 12au7 Lights up bright inside tube on start up but amp seems to play fine.	5	Midwestside	850	Mon Apr 27, 2020 10:37 pm by Midwestside
Hi/Lo phono inputs on old int. tube amp (Harmon Kardon)	4	Dave_in_Va	621	Sun Apr 26, 2020 6:38 pm by Dave_in_Va
Mark III Output Transformers	0	OldFrisco	872	Sat Apr 25, 2020 6:50 pm by OldFrisco
2x original Dynaco ST-70's with VTA board with continued issues after service	20	Sigjunk	2652	Fri Apr 24, 2020 6:39 pm by fenderbender
Random red plate on a stock Dynaco ST-70 amp	8	boeingpilot	1915	Fri Apr 24, 2020 1:17 pm by ELBill34
ST-120 Amp Repair?	0	Guest	790	Thu Apr 23, 2020 12:32 pm by Guest
Question about el34 and / or tube filaments	2	Midwestside	570	Tue Apr 21, 2020 9:07 pm by Midwestside
Finally got my VTA ST 70 rolling	4	Midwestside	819	Mon Apr 20, 2020 8:32 pm by wildiowa
RESOLVED - original Dyna / VTA ST-70- One Output Tubes Doesn't Light	2	knotscott	666	Thu Apr 16, 2020 3:29 pm by knotscott
Loving the AB's	5	LeGrace	877	Wed Apr 15, 2020 6:13 am by Hops
Question about Open loop gain for VTA-70	8	peterh	986	Sun Apr 12, 2020 3:46 pm by peterh
RESOLVED: Original Dynaco ST-70 with VTA driver board bias Problem - One Output Tube Glows Cherry Red	12	knotscott	2246	Sat Apr 11, 2020 6:51 pm by knotscott
Dynaco A 10 Crossover help	3	jefe59	630	Wed Apr 08, 2020 4:01 pm by jefe59
PH-14 Phono PCB	1	Udo	739	Fri Apr 03, 2020 4:22 pm by DavidR
Fuse in the ST-120?	2	Guest	1194	Fri Apr 03, 2020 7:31 am by Bob Latino
Same tube keeps going bad	19	MechEngVic	1178	Thu Apr 02, 2020 3:22 am by peterh
PAS-3 humming phono	7	ViperZ	2173	Tue Mar 31, 2020 6:15 pm by setu
Serious Red Plate event	19	CletusB	2319	Tue Mar 31, 2020 8:30 am by CletusB
Dynaco PAS built-in buffer	0	peterh	801	Mon Mar 30, 2020 10:28 am by peterh
Both MK-III monoblocks started to hum	17	ViperZ	1794	Sat Mar 28, 2020 10:26 am by ViperZ
R29 - 32 ST-120 driver board	3	Dale Stevens	860	Thu Mar 26, 2020 8:07 pm by Roy Mottram
help needed with Sound Values #957003 board	2	Antonn	754	Thu Mar 26, 2020 7:55 pm by Roy Mottram
Upgraded caps and now no sound on St120	7	eminence1963	1134	Thu Mar 26, 2020 7:52 pm by Bob Latino
Higher bias on one socket	2	corndog71	520	Thu Mar 26, 2020 4:06 pm by corndog71
Original Dynaco ST 70 Producing slight hum in left channel	3	wazowski	727	Wed Mar 25, 2020 7:00 pm by wazowski
Teflon Wire Stripper	2	Mark Korda	575	Wed Mar 25, 2020 2:20 am by Mark Korda
ST 70 Restoration Time Lapse/Condensed Video	5	jrubin	738	Tue Mar 24, 2020 11:38 pm by jrubin
SP14 question	2	ikir	1151	Sun Mar 22, 2020 7:19 pm by ikir
Weird problem with MK-III amplifier	22	ViperZ	858	Thu Mar 19, 2020 4:38 pm by peterh