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Topics	Replies	Author	Views	Last Posts
Dynaco st-70’ low voltage	6	Babgrip	608	Wed Dec 09, 2020 6:24 pm by Babgrip
Tung Sol KT-170	4	tubed1	1468	Mon Dec 07, 2020 5:30 am by rich121
mono/stereo switches	2	rmike	1047	Fri Dec 04, 2020 12:24 pm by Bob Latino
Cover for Quad Cap?	4	smoorenc	580	Sat Nov 28, 2020 9:19 pm by smoorenc
Pentode/triode switch position?	3	StevieRay	1100	Fri Nov 27, 2020 9:15 pm by StevieRay
E80CF/7643	5	rodulfo23	1212	Thu Nov 26, 2020 12:52 am by boscode
Interesting commercial ST-70 from the 'original' Dyneco company	2	JunkyJan	888	Wed Nov 25, 2020 9:14 pm by JunkyJan
A pre-amp to match my VTA ST70?	6	tommyC7	1310	Tue Nov 24, 2020 9:14 am by tomlang
pas filament supply question	13	rmk	1155	Sun Nov 22, 2020 11:20 am by rmk
Impedance question	5	Kinski	734	Sat Nov 21, 2020 6:55 pm by Kinski
Where can I find the bias testing post mount thing?	4	smoorenc	1198	Mon Nov 16, 2020 1:05 am by aguaazul
My very first tube amps!	18	VintageRulez	1479	Wed Nov 04, 2020 8:01 pm by Solder Slinger
Proper technique to test a pre-amp	2	Mr C	577	Wed Nov 04, 2020 3:06 pm by Mr C
Low output one channel	13	dalemurray	1274	Wed Nov 04, 2020 12:59 pm by fredeb
Anyone know the completed weight of the 120?	2	smoorenc	617	Sun Nov 01, 2020 11:18 am by smoorenc
Gold Lion KT-88 Issues?	6	Guest	1933	Sun Nov 01, 2020 3:20 am by peterh
New Power Cord ST70 Polarity??	2	LBK	849	Sat Oct 31, 2020 7:35 pm by corndog71
Dynatuner FM-3 PB-012 vs PA509 Transformer	5	Stannie79	929	Sat Oct 31, 2020 2:04 am by peterh
Bias help. One side not adjusting to proper voltage.	7	gjmess	703	Thu Oct 29, 2020 4:37 pm by gjmess
Hooking up two turntables	1	Dave_in_Va	432	Wed Oct 28, 2020 10:21 pm by corndog71
NOS tubes for my ST-35	5	soundz915	454	Sat Oct 24, 2020 4:57 pm by WLT
ST-35 fuse blown	20	soundz915	820	Sat Oct 24, 2020 4:52 pm by WLT
Bias setting for original ST70	18	erniegiro	3467	Wed Oct 21, 2020 8:12 pm by erniegiro
Bias question 1, 2	46	Skelt	2628	Tue Oct 20, 2020 3:52 pm by Skelt
Need opinions on new equipment acquired	11	gjmess	994	Tue Oct 20, 2020 10:14 am by peterh
New Octal VTA-70 hiss question	6	ttownscott	789	Tue Oct 20, 2020 3:20 am by ttownscott
Preamp for ST70	21	jeffjmr	2338	Mon Oct 19, 2020 10:59 pm by Roy Mottram
TDR Relay with Tube Rectifier	10	jimmeq	1127	Sun Oct 18, 2020 3:45 pm by monkuboy
VTA70 board mod advantage of increased capacitance	4	erniegiro	766	Sat Oct 17, 2020 7:14 pm by erniegiro
Blown Fuse on an original Dynaco ST-70 HELP	3	danagr	819	Sat Oct 10, 2020 2:46 pm by danagr
12ax7 to 12bz7	4	Tom	932	Sat Oct 10, 2020 11:07 am by Tom
Tube Replacement: 6550WE with GZ33 or GL KT88 and 5AR4	2	dalemurray	999	Fri Oct 09, 2020 12:03 am by dalemurray
Troubleshooting help needed for brand new VTA ST-120 - solved ! 1, 2	45	alanhuth	3147	Thu Oct 08, 2020 3:05 pm by alanhuth
Red Plate, V6 - two year old ST-120 with original 6550	8	dalemurray	750	Wed Oct 07, 2020 10:29 pm by dalemurray
Low voltage power transformer	12	gwvenus56	880	Mon Oct 05, 2020 4:22 pm by Wharfcreek
How to make your own custom circuit boards with a 3-D printer	0	baddog1946	450	Sun Oct 04, 2020 12:04 pm by baddog1946
Optimal voltage for our amps	5	Mr C	850	Fri Oct 02, 2020 5:11 pm by audio ken
VTA ST-70 with 12 or 16 ohm speakers	5	audio ken	821	Thu Oct 01, 2020 5:16 pm by Bob Latino
VTA / MKIII bias resistor	5	wgallupe	835	Thu Oct 01, 2020 2:50 pm by wgallupe
Need schematic and layout for Dyna PAS preamp	3	case310350	5049	Tue Sep 29, 2020 7:57 am by Bob Latino
VTA/PAS4 Build	4	stewdan	1105	Sun Sep 27, 2020 1:07 pm by peterh
Protect my amp?	6	Guest	763	Sat Sep 26, 2020 12:38 pm by solderblob
Older VTA ST-120 tubes	9	davidness	1463	Fri Sep 25, 2020 8:01 am by Bob Latino
Dirty Tube Sockets?!?!?!	8	MechEngVic	2145	Sun Sep 20, 2020 7:47 pm by DavidR
MKiii Output Transformer	3	rudes	809	Sat Sep 19, 2020 10:16 pm by stewdan
VTA-70 Tube Amplifier?	19	Guest	1681	Sat Sep 19, 2020 2:48 am by peterh
Removing Anodization	3	Mr C	685	Sat Sep 12, 2020 5:05 am by mijohn
Catastrophic failure of auto bias board in M-125	10	FearOfMusic	2033	Fri Sep 11, 2020 9:40 pm by aguaazul
ST70 diode warning 1, 2	28	jeffjmr	3498	Fri Sep 11, 2020 8:25 pm by jeffjmr
Newbee- Lots of Dynaco Questions	4	LBK	629	Thu Sep 10, 2020 2:38 am by peterh