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Topics	Replies	Author	Views	Last Posts
custom st70 chassis	6	Mazen0822	617	Fri Jul 12, 2024 12:04 am by Longwood
Mk3 Driver Board	11	MarkS57	684	Tue Jul 09, 2024 5:03 am by jwb474
ST-70 Power Transformer	14	moodyj2000	3174	Mon Jul 08, 2024 2:03 pm by Roy Mottram
ST-35 Output Transformer Ohms	4	jwb474	458	Mon Jul 01, 2024 4:52 pm by Dan W
Power Supply Upgrade for PAS 2 -	10	Mr Ridesglide	609	Wed Jun 26, 2024 7:06 pm by Mr Ridesglide
RCA cable fitment	11	itrfguy	988	Mon Jun 24, 2024 5:17 am by lorne
dynaco PAS4, rock and a hard place	2	Mazen0822	451	Mon Jun 24, 2024 2:34 am by rustybutt
SP12 preamp revisited	4	Roy Mottram	8135	Fri Jun 14, 2024 4:16 pm by DavidR
SP14 input impedence?	1	monkuboy	342	Tue Jun 11, 2024 3:13 pm by Roy Mottram
EL 34 v. KT 88	22	rwferr	11990	Thu Jun 06, 2024 7:19 pm by sweden
ST-120 melt down	9	krcrisp	725	Wed Jun 05, 2024 3:42 pm by peterh
Hum from new VTA120 newly built kit	14	NewToTubes210	1963	Sun Jun 02, 2024 3:26 pm by lavane
6 ohm speakers	2	JohnS	581	Fri May 24, 2024 6:36 am by MechEngVic
ST-120 - Noise in R Ch After Recapping Electrolytics	6	arledgsc	736	Thu May 23, 2024 12:46 pm by Seamus
Help identifying MKIII power transformer	3	Ncoble03	480	Thu May 23, 2024 10:23 am by WLT
How to remove fine scratches from the VTA-ST120 chassis?	1	alexbramford	696	Wed May 22, 2024 9:12 pm by Dan W
[ Poll ] New product poll - MK3 amp kits or tube cages	2	Dan W	654	Wed May 22, 2024 9:10 pm by Dan W
Purchasing a ST 70 Kit - Not as Easy as I'd Like!	5	Mr Ridesglide	913	Sun May 12, 2024 9:08 pm by arledgsc
ST-120 Supplementary Cap Module - What Specific Caps These Days?	5	arledgsc	647	Sat May 11, 2024 8:10 pm by arledgsc
PAS 3 -- sound is too bright	17	Calypte	1235	Fri May 03, 2024 4:32 pm by Calypte
Looking for a schematic for a "PAS-4 for the PAS-3" PC-5 PCB	0	BuzzK	230	Wed May 01, 2024 8:01 am by BuzzK
Stereo 35 Hum In Both Channels	10	HifiGuy	1019	Mon Apr 29, 2024 11:48 am by Seamus
ST-70 Strange Behavior	1	moodyj2000	506	Thu Apr 25, 2024 9:22 pm by Mr Ridesglide
Wanted To Buy: ST-70 Bottom Cover	1	jviss	310	Mon Apr 22, 2024 9:52 pm by Mr Ridesglide
Mark iii with EL34 - Bias%?	7	smilan	951	Mon Apr 22, 2024 8:54 am by fredeb
Dynaco ST-70 Buzzing in Left Channel	8	Blue Apple	653	Thu Apr 18, 2024 6:13 pm by Blue Apple
Dynaco ST-35 Power Supply Diodes	3	rudes	521	Tue Apr 16, 2024 9:38 am by Rec
Rectifier tube gone bad?	7	FGub	765	Sun Apr 14, 2024 11:29 am by halfpint6664
ST70 makes a very brief but startling sound	2	kayvee	479	Sun Apr 07, 2024 3:04 pm by kayvee
Surging hum followed by crackle, then repeats - both channels	3	aichholzer	467	Sun Mar 31, 2024 8:00 pm by aichholzer
BIAS problem on one tube (KT90)	10	MarcVBelgium	827	Thu Mar 28, 2024 2:06 pm by MarcVBelgium
tube sockets	5	JohnS	636	Thu Mar 21, 2024 11:51 pm by JohnS
New SP14 build. Really noisy!	12	perkri	1057	Mon Mar 18, 2024 10:40 pm by perkri
ST-70 failing DBT with power tube installed	13	botto	904	Mon Mar 18, 2024 5:34 pm by botto
V2 bias issue	1	Ernestwithanage	323	Mon Mar 18, 2024 1:09 pm by peterh
VTA ST-120... blown fuse. Quad cap resistor blown? Bigger problems?	20	ChetJettison	1345	Thu Mar 14, 2024 11:52 pm by Rec
.45v bias ok for KT120 tubes in ST-120 amp?	1	ChetJettison	435	Sun Mar 10, 2024 11:00 am by Bob Latino
Dynaco pas 3x, right and left channel issue	4	Johnyblack	418	Mon Feb 26, 2024 2:59 pm by Johnyblack
Need some help with VTA ST-120 issues	18	krcrisp	1117	Mon Feb 26, 2024 11:31 am by smoorenc
Necessity of a variac with MKIII Transformer(s)?	3	snip73	946	Sat Feb 17, 2024 1:47 pm by rebellovw
VTA M-125 Dual Rectifier Tube Mod?	11	98indypacer	1374	Sat Feb 17, 2024 1:36 pm by rebellovw
Edcor on ST-35	3	ESL-57	610	Fri Feb 16, 2024 5:08 pm by ESL-57
Reduced left channel output - no buzz or humming	4	photoenergy	563	Fri Feb 16, 2024 2:11 pm by Seamus
New Member, New ST-70	3	Antarctica	535	Fri Feb 16, 2024 1:42 pm by Seamus
Digital Bias Meters	4	jwb474	1038	Mon Feb 05, 2024 7:01 am by jwb474
Dynaco C-354 chokes in stock	0	Dan W	805	Sat Feb 03, 2024 1:19 am by Dan W
Dynaco ST-35 new populated boards on EBay?	2	misterc57	472	Fri Feb 02, 2024 4:31 pm by misterc57
ST-120 LM334 burnout	8	grosen	1602	Wed Jan 31, 2024 10:16 am by jwb474
Remember This Book	3	jwb474	833	Sun Jan 21, 2024 12:40 am by jwb474
New to me ST120 blown 6550 & 5AR4	3	batman7349	518	Sat Jan 20, 2024 9:28 pm by batman7349