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Topics	Replies	Author	Views	Last Posts
Electric Zap sound and shut off on my VTA ST-70	2	James_Weir	231	on Sat May 02, 2020 9:17 pm by James_Weir
A week of listening to my VTA 70 and im hooked!	6	Midwestside	468	on Fri May 01, 2020 10:50 am by Midwestside
PSVANE KT88-T MARK ii	1	rodulfo23	398	on Fri May 01, 2020 4:38 am by Halvis
Output Tube Arcing?	3	medphys	266	on 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	292	on Mon Apr 27, 2020 10:37 pm by Midwestside
Hi/Lo phono inputs on old int. tube amp (Harmon Kardon)	4	Dave_in_Va	192	on Sun Apr 26, 2020 6:38 pm by Dave_in_Va
Mark III Output Transformers	0	OldFrisco	361	on Sat Apr 25, 2020 6:50 pm by OldFrisco
Random red plate on a stock Dynaco ST-70 amp	9	boeingpilot	535	on Sat Apr 25, 2020 11:36 am by PeterCapo
2x original Dynaco ST-70's with VTA board with continued issues after service	20	Sigjunk	1707	on Fri Apr 24, 2020 6:39 pm by fenderbender
ST-120 Amp Repair?	0	music	307	on Thu Apr 23, 2020 12:32 pm by music
Question about el34 and / or tube filaments	2	Midwestside	227	on Tue Apr 21, 2020 9:07 pm by Midwestside
Finally got my VTA ST 70 rolling	4	Midwestside	299	on Mon Apr 20, 2020 8:32 pm by wildiowa
RESOLVED - original Dyna / VTA ST-70- One Output Tubes Doesn't Light	2	knotscott	212	on Thu Apr 16, 2020 3:29 pm by knotscott
Gold Lion KT-88 Issues?	4	music	505	on Wed Apr 15, 2020 7:06 pm by wildiowa
Loving the AB's	5	LeGrace	486	on Wed Apr 15, 2020 6:13 am by Hops
Question about Open loop gain for VTA-70	8	peterh	588	on 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	834	on Sat Apr 11, 2020 6:51 pm by knotscott
Dynaco A 10 Crossover help	3	jefe59	286	on Wed Apr 08, 2020 4:01 pm by jefe59
PH-14 Phono PCB	1	Udo	355	on Fri Apr 03, 2020 4:22 pm by DavidR
Fuse in the ST-120?	2	music	354	on Fri Apr 03, 2020 7:31 am by Bob Latino
Same tube keeps going bad	19	MechEngVic	696	on Thu Apr 02, 2020 3:22 am by peterh
PAS-3 humming phono	7	ViperZ	762	on Tue Mar 31, 2020 6:15 pm by setu
Serious Red Plate event	19	CletusB	1467	on Tue Mar 31, 2020 8:30 am by CletusB
Dynaco PAS built-in buffer	0	peterh	213	on Mon Mar 30, 2020 10:28 am by peterh
Both MK-III monoblocks started to hum	17	ViperZ	1223	on Sat Mar 28, 2020 10:26 am by ViperZ
R29 - 32 ST-120 driver board	3	Dale Stevens	425	on Thu Mar 26, 2020 8:07 pm by tubes4hifi
help needed with Sound Values #957003 board	2	Antonn	378	on Thu Mar 26, 2020 7:55 pm by tubes4hifi
Upgraded caps and now no sound on St120	7	eminence1963	454	on Thu Mar 26, 2020 7:52 pm by Bob Latino
Higher bias on one socket	2	corndog71	245	on Thu Mar 26, 2020 4:06 pm by corndog71
Original Dynaco ST 70 Producing slight hum in left channel	3	wazowski	357	on Wed Mar 25, 2020 7:00 pm by wazowski
Teflon Wire Stripper	2	Mark Korda	296	on Wed Mar 25, 2020 2:20 am by Mark Korda
ST 70 Restoration Time Lapse/Condensed Video	5	jrubin	467	on Tue Mar 24, 2020 11:38 pm by jrubin
SP14 question	2	ikir	418	on Sun Mar 22, 2020 7:19 pm by ikir
Weird problem with MK-III amplifier	22	ViperZ	563	on Thu Mar 19, 2020 4:38 pm by peterh
Dynaco PAS-3 rear panel replacement	2	ViperZ	335	on Thu Mar 19, 2020 3:48 pm by ViperZ
Dynaco PAS-3 volume notch	3	ViperZ	340	on Thu Mar 19, 2020 3:43 pm by ViperZ
Could it be my imagination?	6	music	1369	on Tue Mar 17, 2020 2:51 pm by PeterCapo
Rectifier and blown fuse	5	jimmeq	506	on Tue Mar 17, 2020 11:27 am by Bob Latino
VTA M125 transformer heater filament rating	22	30 Ounce	1200	on Sat Mar 14, 2020 5:08 pm by 30 Ounce
Dynaco Pas Phono Input	3	rudes	499	on Thu Mar 12, 2020 10:48 am by rudes
Add balanced input to M-125?	8	ptstucky	1120	on Tue Mar 10, 2020 9:21 am by Wotan
PA060 No Load secondary HV tolerances	7	BCROW	623	on Mon Mar 09, 2020 1:23 am by BCROW
Dee Pee Dave	17	Tube Nube	1090	on Fri Mar 06, 2020 11:07 pm by cci1492
Stock MK III upgrade to octal driver boards?	6	Adnick	657	on Wed Mar 04, 2020 5:57 pm by Adnick
My VTA ST-120 Just Arrived	2	eminence1963	797	on Mon Mar 02, 2020 7:37 pm by DavidR
Help with Z565	3	dmtparker	1124	on Wed Feb 26, 2020 10:46 pm by murrayatuptown
Power Transformer and AC wall voltage?	2	music	484	on Wed Feb 26, 2020 5:42 pm by PeterCapo
Rebuilding Mark IIIs 1, 2	25	OldFrisco	1221	on Wed Feb 26, 2020 1:12 am by OldFrisco
Guidance needed for a beginner - Mark II restoration ?'s	7	JayMX	679	on Mon Feb 24, 2020 5:01 pm by Jbacik
How do you dust your equipment?	7	chad1376	486	on Mon Feb 24, 2020 10:20 am by Tom