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Topics	Replies	Author	Views	Last Posts
Announcement: dual rectifiers for ST120 & ST70 amps 1, 2	30	Roy Mottram	4150	Sat Dec 02, 2023 5:27 pm by GAflubug
Announcement: Tubes IN STOCK - Tung-Sol, Gold Lion, Electro-Harmonix, Svetlana, Sovtek, JJ	2	Dan W	880	Thu Sep 07, 2023 9:00 pm by Dan W
Announcement: blown tubes	0	Roy Mottram	1379	Thu Jun 08, 2023 7:51 pm by Roy Mottram
A pre-amp to match my VTA ST70?	6	tommyC7	1308	Tue Nov 24, 2020 8:14 am by tomlang
pas filament supply question	13	rmk	1155	Sun Nov 22, 2020 10:20 am by rmk
Impedance question	5	Kinski	733	Sat Nov 21, 2020 5:55 pm by Kinski
Where can I find the bias testing post mount thing?	4	smoorenc	1193	Mon Nov 16, 2020 12:05 am by aguaazul
My very first tube amps!	18	VintageRulez	1479	Wed Nov 04, 2020 7:01 pm by Solder Slinger
Proper technique to test a pre-amp	2	Mr C	577	Wed Nov 04, 2020 2:06 pm by Mr C
Low output one channel	13	dalemurray	1266	Wed Nov 04, 2020 11:59 am by fredeb
Anyone know the completed weight of the 120?	2	smoorenc	614	Sun Nov 01, 2020 10:18 am by smoorenc
Gold Lion KT-88 Issues?	6	Guest	1914	Sun Nov 01, 2020 2:20 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	927	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	431	Wed Oct 28, 2020 10:21 pm by corndog71
NOS tubes for my ST-35	5	soundz915	453	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	3449	Wed Oct 21, 2020 8:12 pm by erniegiro
Bias question 1, 2	46	Skelt	2626	Tue Oct 20, 2020 3:52 pm by Skelt
Need opinions on new equipment acquired	11	gjmess	992	Tue Oct 20, 2020 10:14 am by peterh
New Octal VTA-70 hiss question	6	ttownscott	787	Tue Oct 20, 2020 3:20 am by ttownscott
Preamp for ST70	21	jeffjmr	2321	Mon Oct 19, 2020 10:59 pm by Roy Mottram
TDR Relay with Tube Rectifier	10	jimmeq	1124	Sun Oct 18, 2020 3:45 pm by monkuboy
VTA70 board mod advantage of increased capacitance	4	erniegiro	761	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	929	Sat Oct 10, 2020 11:07 am by Tom
Tube Replacement: 6550WE with GZ33 or GL KT88 and 5AR4	2	dalemurray	995	Fri Oct 09, 2020 12:03 am by dalemurray
Troubleshooting help needed for brand new VTA ST-120 - solved ! 1, 2	45	alanhuth	3138	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	848	Fri Oct 02, 2020 5:11 pm by audio ken
VTA ST-70 with 12 or 16 ohm speakers	5	audio ken	820	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	5001	Tue Sep 29, 2020 7:57 am by Bob Latino
VTA/PAS4 Build	4	stewdan	1104	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	1462	Fri Sep 25, 2020 8:01 am by Bob Latino
Dirty Tube Sockets?!?!?!	8	MechEngVic	2129	Sun Sep 20, 2020 7:47 pm by DavidR
MKiii Output Transformer	3	rudes	808	Sat Sep 19, 2020 10:16 pm by stewdan
VTA-70 Tube Amplifier?	19	Guest	1678	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	2029	Fri Sep 11, 2020 9:40 pm by aguaazul
ST70 diode warning 1, 2	28	jeffjmr	3464	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
VTA-ST70 chassis dimensions	2	audio ken	986	Tue Sep 08, 2020 12:14 pm by audio ken
Just had a 6550 Red Plate on a VTA-120	8	Hops	1608	Thu Sep 03, 2020 1:36 am by peterh
Original Dynakit ST70 - Quad cap is vibrating with the music	22	Potato_Head	1730	Wed Sep 02, 2020 9:17 pm by Potato_Head
Tube temperature	2	MarcVBelgium	593	Wed Sep 02, 2020 7:47 am by MarcVBelgium
Stereo 70 Repair Diagnostics & Journal	4	misterc57	705	Fri Aug 28, 2020 9:19 am by peterh
Help on Mods original Dynaco ST-70 with VTA board/PAS3X	9	Pigboat	1997	Mon Aug 24, 2020 2:02 pm by Pigboat
Voltage regulator vs VARIC vs Power Conditioner 1, 2	28	Guest	3611	Mon Aug 24, 2020 1:50 pm by Hops