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Topics	Replies	Author	Views	Last Posts
ST-120, a storm, a power interruption and now "pops"	2	antipodean	453	on Fri Feb 21, 2020 6:59 pm by sKiZo
Dynaco Marked EL34 Tubes	1	rudes	316	on Thu Feb 20, 2020 3:41 pm by tubes4hifi
Differences / worthy upgrades from older VTA boards?	3	calinet6	453	on Tue Feb 18, 2020 12:56 pm by Bob Latino
Back at it after awhile	0	natoe	220	on Mon Feb 17, 2020 6:20 pm by natoe
Pavel's Auto Bias on Dynaco Mark III	8	stewdan	481	on Mon Feb 17, 2020 3:05 pm by pavlikkkk
Unusual Dynaco / Scan-dyna speakers M-2 ?	0	jives11	172	on Mon Feb 17, 2020 5:36 am by jives11
Testing KT77 & CV181 on a Hickok 752 tube tester	0	breading	187	on Sat Feb 15, 2020 2:51 pm by breading
Are Matched Output Tubes Necessary with VTA ST-70?	14	knotscott	659	on Fri Feb 14, 2020 5:26 pm by peterh
Speakers Pop on turnoff	6	eminence1963	296	on Fri Feb 14, 2020 11:48 am by eminence1963
Opinions For Using Two VTA ST-70 As Monoblocks	1	knotscott	301	on Fri Feb 14, 2020 11:31 am by Wotan
ST-120 Audio Circuit = floating ground?	4	dalemurray	343	on Tue Feb 11, 2020 9:59 am by dalemurray
Edcor Transformers for Mark lll	15	TN Allen	962	on Mon Feb 10, 2020 11:04 am by TN Allen
Added gold lion kt77 to my VTA st-70 and the lowest I can bias is .500 what can I do?	3	leaveit_tubebeaver	379	on Sat Feb 08, 2020 9:07 pm by Bob Latino
Tube amps get pretty warm - especially in the summer (photo)	23	Bob Latino	9801	on Fri Feb 07, 2020 12:26 am by BillyW
M125 - Red plating output tube	4	costerdock	290	on Wed Feb 05, 2020 7:00 pm by costerdock
SP11 Preamp Just Arrived! 1, 2	25	69Cutlass	2323	on Wed Feb 05, 2020 5:03 pm by B&WTube
Looking at the ST 70 Driver board but want to know if/what mods will conflict 1, 2	26	bgovoni	1008	on Tue Feb 04, 2020 10:48 pm by Jbacik
PH-14 build, Any tips or advice?	7	Mr C	913	on Tue Feb 04, 2020 8:14 pm by tubes4hifi
PH14 LED switch brightness	5	Mr C	395	on Mon Feb 03, 2020 11:10 pm by tubes4hifi
Mark II Preamp Wiring Change Question	9	AA6U	533	on Mon Feb 03, 2020 12:20 am by AA6U
ST-120 power tube red plate issue	13	calauver1	1047	on Sun Feb 02, 2020 5:47 pm by markeby
Very low bias and hum on Dynakit ST-70 1, 2	39	lagwil	2293	on Sun Feb 02, 2020 12:48 pm by lagwil
Solid State Rectifier?	9	music	602	on Sat Feb 01, 2020 3:11 pm by rjpjnk
ST120 KT88 bias for long life 1, 2, 3	67	GreggW	9161	on Fri Jan 31, 2020 3:51 am by GreggW
Upgrading Power Cables and Fuses 1, 2	31	B&WTube	1682	on Thu Jan 30, 2020 4:28 pm by B&WTube
How to tell if underpowered	12	B&WTube	759	on Tue Jan 28, 2020 1:06 am by B&WTube
Variac Issue?	2	music	289	on Mon Jan 27, 2020 5:01 pm by music
New VTA-70 Build - Right Channel Cutting Out After 10-15 Minutes - fixed !	5	knotscott	368	on Sat Jan 25, 2020 9:12 pm by knotscott
Did I blow my right output transformer?	8	islanddave	725	on Fri Jan 24, 2020 1:29 pm by Mr C
Nordost Systems Solution	6	Brap	439	on Thu Jan 23, 2020 11:20 am by Brap
Original Dynaco ST70 with VTA driver board - Bias Voltage Drops After a Few Minutes	10	knotscott	551	on Mon Jan 20, 2020 9:18 am by knotscott
VTA ST-120 vs 2a3/300B	1	music	311	on Sun Jan 19, 2020 10:44 am by Bob Latino
New product - VTA driver board cover (photo) 1, 2, 3	52	Bob Latino	10369	on Sat Jan 18, 2020 6:24 pm by ranges
Best Rectifier and Driver Tubes for Latino VTA ST-70?	19	Chris A	2564	on Wed Jan 15, 2020 12:41 pm by Dave_in_Va
Interconnects 1, 2	26	tubenutr	2266	on Wed Jan 15, 2020 1:42 am by MechEngVic
Rectifier info	2	Dave_in_Va	267	on Mon Jan 13, 2020 10:26 pm by Dave_in_Va
12X4 Rectifier Tube	4	Sprags	4153	on Sun Jan 12, 2020 8:32 pm by DavidR
McIntosh MX 110 pre amp into VTA ST-70	4	Udo	496	on Sun Jan 12, 2020 12:43 am by Dogstar
NOS and modern tubes	7	deepee99	793	on Sat Jan 11, 2020 7:21 pm by TN Allen
power conditioning	13	rymi	1406	on Sat Jan 11, 2020 6:59 pm by aguaazul
Dynaco ST70 bias issue - solved !	9	wrayman	779	on Sat Jan 11, 2020 4:52 pm by wrayman
RIP Roger Modjeski	0	corndog71	290	on Fri Jan 10, 2020 10:22 pm by corndog71
Sad day! First VTA problem	3	Dave_in_Va	626	on Fri Jan 10, 2020 10:27 am by Dave_in_Va
Dynaco SCA-35 output transformer question	4	radiolandia	293	on Thu Jan 09, 2020 8:51 am by radiolandia
PH16X Hum/Buzz 1, 2, 3	53	thermionicvinyl	2683	on Mon Jan 06, 2020 5:05 pm by tubes4hifi
M125 autobias hum, a ground issues? solved !	3	ericoto	575	on Mon Jan 06, 2020 4:57 pm by tubes4hifi
Mark lll Power Supply Transformer Temperature	2	TN Allen	356	on Mon Jan 06, 2020 3:53 pm by TN Allen
Troubleshooting ST-70 Hum - now blowing fuses! Bad output transformer?	6	bearwalker01	701	on Thu Jan 02, 2020 9:17 pm by bearwalker01
High B+ at 117 line voltage, Bad rectifier?	3	intotubes	470	on Wed Jan 01, 2020 12:45 am by rjpjnk
Pre Amp? yes or not needed?	15	music	1368	on Sat Dec 28, 2019 10:48 am by audiobill