Amplifiers, Kits, Parts and Tech

Forum

Topics

Posts

Last post

Plexi Replicas by Metropoulos Amplification
Replica amps built by George Metropoulos himself. Visit PlexiReplicas.com.
Moderator: VelvetGeorge
Topics: 170

170 Topics

1501 Posts

Last post Girls in your town - Real Wom…
by jsstrozza1 View the latest post
Tue Oct 08, 2024 7:59 pm
Metro-Plex
All about the new Metropoulos plexi for the 21st Century.
Topics: 47

47 Topics

249 Posts

Last post Re: Metroplex Grid Resistors …
by willaim22 View the latest post
Wed Apr 26, 2023 11:39 pm
MetroAmp General Kits and Products
Discuss your builds of MetroAmp Kits.
Moderator: VelvetGeorge
Topics: 901

901 Topics

7544 Posts

Last post Re: FX loops coming to Metro.
by rmroza View the latest post
Tue Jan 09, 2024 8:00 pm
MetroAmp JTM 45 Kits
Get support and show off your MetroAmp JTM 45 kit builds.
Moderator: VelvetGeorge
Topics: 1982

1982 Topics

18935 Posts

Last post Re: jtm45 ppimv ringing/hum
by jack1999 View the latest post
Tue Feb 18, 2025 9:13 pm
MetroAmp 50 Watt Kits
Get support and show off your MetroAmp 50 Watt kit builds.
Moderator: VelvetGeorge
Topics: 955

955 Topics

8968 Posts

Last post Power & Preamp Valve Brands
by CAlbs_Plexi50 View the latest post
Wed Apr 12, 2023 12:57 pm
Metroamp 100 Watt Master Volume Kits
Discuss our latest amp kit.
Moderator: VelvetGeorge
Topics: 105

105 Topics

621 Posts

Last post Re: My 2203 clone
by axeman View the latest post
Mon Sep 12, 2022 9:49 pm
Marshall Amplifiers
Everything from original vintage Marshalls to reissues.
Moderator: VelvetGeorge
Topics: 6324

6324 Topics

73157 Posts

Last post Re: S.I.R. 100W SuperLead Sch…
by Unique View the latest post
Wed May 21, 2025 8:09 pm
Other Amplifiers
Completed amps from Fender, Orange, Hiwatt, Vox, etc.
Moderator: VelvetGeorge
Topics: 1449

1449 Topics

12606 Posts

Last post Early 1968 Fender super rever…
by bluze81 View the latest post
Thu Feb 20, 2025 11:06 am
Do It Yourself amp builds
Share your home builds, knock offs and ground up customs.
Topics: 1655

1655 Topics

14606 Posts

Last post 50 watt JCM800 clone
by fixer2 View the latest post
Thu Jun 12, 2025 3:28 pm
Repairs, Restoration and Mods
Info for maintaining and tweaking your amp to perfection.
Moderator: VelvetGeorge
Topics: 4927

4927 Topics

41168 Posts

Last post Re: Replace Impedance Selecto…
by danosol View the latest post
Sat Jun 07, 2025 7:09 pm
Transformers and Chokes
All about iron and copper.
Moderator: VelvetGeorge
Topics: 716

716 Topics

4243 Posts

Last post Re: Which OT for 1972 Superle…
by geezbill View the latest post
Thu Mar 27, 2025 9:03 am
PTP circuit boards
Info about our boards and kits.
Moderator: VelvetGeorge
Topics: 347

347 Topics

2830 Posts

Last post Re: Resistors types in origin…
by Frank Sottile View the latest post
Sat Dec 31, 2022 7:57 am
Tubes
The good, the bad and the ugly.
Moderator: VelvetGeorge
Topics: 1502

1502 Topics

11453 Posts

Last post Re: Western Electric assessin…
by awangotango View the latest post
Fri Aug 12, 2022 6:53 am

Active topics

Replies

Views

Last post

S.I.R. 100W SuperLead Schematic pt. II

Last post by Unique « Wed May 21, 2025 8:09 pm
Replies: 11647
by novosibir » Sun Jan 17, 2010 7:07 pm
1

…

773

774

775

776

777
11647 Replies

1168844 Views

Last post by Unique
Wed May 21, 2025 8:09 pm
The PPIMV (Post-PI-Master-Volume) thread.

Last post by danman « Mon Nov 20, 2023 8:30 pm
Replies: 1795
by MacGaden » Thu Jan 19, 2006 6:01 pm
1

…

116

117

118

119

120
1795 Replies

564778 Views

Last post by danman
Mon Nov 20, 2023 8:30 pm
Evolution of the 100 watt superlead circuit

Last post by toobzilla « Mon Oct 30, 2023 7:24 am
Replies: 80
by VelvetGeorge » Wed Jan 26, 2005 5:15 pm
1

2

3

4

5

6
80 Replies

187215 Views

Last post by toobzilla
Mon Oct 30, 2023 7:24 am
G12M speaker shootout video. Celestion, Scumback, ASW

Last post by 420buds2go « Thu Sep 21, 2023 7:30 pm
Replies: 5
by VelvetGeorge » Mon Apr 01, 2013 11:15 am

5 Replies

17294 Views

Last post by 420buds2go
Thu Sep 21, 2023 7:30 pm
Help Implementing Star/Larry Grounding scheme

Last post by Yaron « Mon Apr 10, 2023 8:13 pm
Replies: 43
by LJay942 » Thu Sep 10, 2009 9:43 pm
1

2

3
43 Replies

69404 Views

Last post by Yaron
Mon Apr 10, 2023 8:13 pm
JTM 45 amp kit instructions ***UPDATED*** Oct 2008

Last post by 62Plexi « Tue Jan 03, 2023 10:56 am
Replies: 12
by VelvetGeorge » Tue Aug 09, 2005 7:30 pm

12 Replies

84777 Views

Last post by 62Plexi
Tue Jan 03, 2023 10:56 am
Forming filter caps

Last post by Derrick « Sun Sep 25, 2022 12:09 pm
Replies: 354
by novosibir » Sun Nov 12, 2006 5:24 pm
1

…

20

21

22

23

24
354 Replies

216704 Views

Last post by Derrick
Sun Sep 25, 2022 12:09 pm
Metro-Friedman "plexi" ready to go!

Last post by uiovbged332 « Wed Jul 06, 2022 7:03 pm
Replies: 40
by VelvetGeorge » Mon Oct 10, 2011 1:05 pm
1

2

3
40 Replies

54099 Views

Last post by uiovbged332
Wed Jul 06, 2022 7:03 pm
Tech listings, for repairs, mods, builds ect.

Last post by TH53 « Wed Dec 08, 2021 7:02 pm
Replies: 53
by VelvetGeorge » Wed Oct 04, 2006 4:01 pm
1

2

3

4
53 Replies

141627 Views

Last post by TH53
Wed Dec 08, 2021 7:02 pm
THE HW Marshall thread. Tweaking it step by step.

Last post by SoFa Granny « Thu Oct 07, 2021 6:57 am
Replies: 260
by VelvetGeorge » Mon May 08, 2006 5:59 pm
1

…

14

15

16

17

18
260 Replies

238417 Views

Last post by SoFa Granny
Thu Oct 07, 2021 6:57 am
Late '68, early '69 restoration

Last post by Matthews Guitars « Thu Feb 25, 2021 9:40 pm
Replies: 37
by VelvetGeorge » Wed Jun 28, 2006 9:22 pm
1

2

3
37 Replies

122805 Views

Last post by Matthews Guitars
Thu Feb 25, 2021 9:40 pm
Switching the dual voltage PT taps

Last post by danman « Sun Aug 23, 2020 6:06 pm
Replies: 53
by VelvetGeorge » Wed Oct 25, 2006 8:11 pm
1

2

3

4
53 Replies

88093 Views

Last post by danman
Sun Aug 23, 2020 6:06 pm
NOS Tubes 12AX7

Last post by mojovaughan « Tue Feb 25, 2020 7:22 pm
Replies: 68
by St August » Sat Dec 08, 2007 7:59 am
1

2

3

4

5
68 Replies

113849 Views

Last post by mojovaughan
Tue Feb 25, 2020 7:22 pm
Drake OT's for 100 Watts

Last post by bill bokey « Tue Dec 10, 2019 10:31 am
Replies: 15
by VelvetGeorge » Thu Jun 22, 2006 10:32 pm
1

2
15 Replies

60793 Views

Last post by bill bokey
Tue Dec 10, 2019 10:31 am
Heyboer vs MM.

Last post by crumb « Sat Dec 15, 2018 5:46 pm
Replies: 49
by VelvetGeorge » Wed Jun 07, 2006 2:40 pm
1

2

3

4
49 Replies

103745 Views

Last post by crumb
Sat Dec 15, 2018 5:46 pm
REVIEW (long): Caps, resistors & parts on my 1987x board

Last post by FourT6and2 « Tue Jul 04, 2017 11:07 pm
Replies: 37
by gnugear » Wed Jan 21, 2004 7:04 pm
1

2

3
37 Replies

118798 Views

Last post by FourT6and2
Tue Jul 04, 2017 11:07 pm
Calculating RC time constants...and why you should.

Last post by Roe « Tue Feb 28, 2017 4:43 am
Replies: 59
by VelvetGeorge » Wed Apr 20, 2005 12:18 pm
1

2

3

4
59 Replies

147349 Views

Last post by Roe
Tue Feb 28, 2017 4:43 am
50 watt plexi kit instructions

Last post by ValveStorm « Wed Sep 28, 2016 6:07 pm
Replies: 51
by VelvetGeorge » Wed Nov 07, 2007 5:58 pm
1

2

3

4
51 Replies

76229 Views

Last post by ValveStorm
Wed Sep 28, 2016 6:07 pm
Modern Tubes 12ax7

Last post by Nilo « Fri Apr 29, 2016 6:04 pm
Replies: 60
by St August » Sat Dec 08, 2007 8:01 am
1

2

3

4

5
60 Replies

87219 Views

Last post by Nilo
Fri Apr 29, 2016 6:04 pm
Another 12 Series Original vs Replica clip

Last post by jnew « Fri Aug 28, 2015 2:42 pm
Replies: 63
by VelvetGeorge » Thu Feb 14, 2013 6:18 pm
1

2

3

4

5
63 Replies

71693 Views

Last post by jnew
Fri Aug 28, 2015 2:42 pm
71 specs 50 watt clip on youtube

Last post by toolowd « Sun Aug 16, 2015 9:41 pm
Replies: 59
by VelvetGeorge » Fri Aug 10, 2007 4:23 pm
1

2

3

4
59 Replies

108083 Views

Last post by toolowd
Sun Aug 16, 2015 9:41 pm
45/100 Block End Now Available

Last post by neikeel « Tue Aug 04, 2015 5:25 am
Replies: 87
by VelvetGeorge » Mon Jan 29, 2007 12:33 am
1

2

3

4

5

6
87 Replies

156563 Views

Last post by neikeel
Tue Aug 04, 2015 5:25 am
Detailed Marshall circuit info

Last post by bobtec « Sun Feb 08, 2015 9:37 pm
Replies: 41
by VelvetGeorge » Fri Mar 12, 2004 4:32 pm
1

2

3
41 Replies

215229 Views

Last post by bobtec
Sun Feb 08, 2015 9:37 pm
Decription of output tube types....

Last post by Joshabr1 « Sat Dec 20, 2014 1:10 pm
Replies: 14
by VelvetGeorge » Thu Apr 07, 2005 5:09 pm

14 Replies

57018 Views

Last post by Joshabr1
Sat Dec 20, 2014 1:10 pm
Which caps do I need for XXX model?

Last post by Joshabr1 « Fri Dec 19, 2014 9:10 pm
Replies: 7
by VelvetGeorge » Tue Jan 11, 2005 5:57 pm

7 Replies

46851 Views

Last post by Joshabr1
Fri Dec 19, 2014 9:10 pm
NOS pre advice wanted!

Last post by Joshabr1 « Wed Dec 17, 2014 7:59 pm
Replies: 35
by toner » Wed Sep 26, 2007 9:43 pm
1

2

3
35 Replies

57750 Views

Last post by Joshabr1
Wed Dec 17, 2014 7:59 pm
The standby switch squeal

Last post by neikeel « Wed Oct 08, 2014 4:20 am
Replies: 42
by VelvetGeorge » Wed Jul 11, 2007 3:21 pm
1

2

3
42 Replies

70561 Views

Last post by neikeel
Wed Oct 08, 2014 4:20 am
Metro-Plex at Destroy All Guitars

Last post by stef « Thu Oct 02, 2014 10:01 pm
Replies: 1
by VelvetGeorge » Tue Sep 30, 2014 10:32 pm

1 Replies

10988 Views

Last post by stef
Thu Oct 02, 2014 10:01 pm
My 50W Build! (with pics) - COMPLETE!!!

Last post by Am_I_Evil « Tue Sep 23, 2014 1:30 am
Replies: 58
by mwm523 » Sat Nov 17, 2007 10:25 am
1

2

3

4
58 Replies

91961 Views

Last post by Am_I_Evil
Tue Sep 23, 2014 1:30 am
Bias pot mounting for plexi and JTM 45

Last post by maxwedge572 « Mon Feb 10, 2014 1:13 pm
Replies: 14
by VelvetGeorge » Wed May 23, 2007 12:03 pm

14 Replies

63788 Views

Last post by maxwedge572
Mon Feb 10, 2014 1:13 pm
Parallel effects loop for Marshall style amps

Last post by Froumy « Sat Mar 23, 2013 9:51 pm
Replies: 614
by novosibir » Fri Jan 26, 2007 5:32 pm
1

…

37

38

39

40

41
614 Replies

271173 Views

Last post by Froumy
Sat Mar 23, 2013 9:51 pm
Amp Archives website

Last post by Tazin « Wed Mar 20, 2013 6:55 pm
Replies: 90
by rtcook » Sun Feb 25, 2007 10:09 am
1

…

3

4

5

6

7
90 Replies

156602 Views

Last post by Tazin
Wed Mar 20, 2013 6:55 pm
Tung Sol Reissue 12AX7 not for CF stage !!!

Last post by Lefty Lou « Sat May 12, 2012 4:02 pm
Replies: 52
by novosibir » Sat Jul 19, 2008 4:35 pm
1

2

3

4
52 Replies

82974 Views

Last post by Lefty Lou
Sat May 12, 2012 4:02 pm
NY amp show 2011 Clips posted!

Last post by VelvetGeorge « Fri Aug 12, 2011 12:32 pm
Replies: 5
by VelvetGeorge » Thu Jun 09, 2011 11:25 am

5 Replies

16620 Views

Last post by VelvetGeorge
Fri Aug 12, 2011 12:32 pm
'66 45/100 vs Metropoulos 45/100 replica

Last post by VelvetGeorge « Sat Jul 02, 2011 3:29 am
Replies: 6
by VelvetGeorge » Wed Dec 23, 2009 7:03 pm

6 Replies

19033 Views

Last post by VelvetGeorge
Sat Jul 02, 2011 3:29 am
How to spot Chinese vs UK KT66's

Last post by 68Plexi50 « Sat Jun 11, 2011 11:15 am
Replies: 8
by VelvetGeorge » Mon Apr 09, 2007 10:38 am

8 Replies

25664 Views

Last post by 68Plexi50
Sat Jun 11, 2011 11:15 am
Brian, Greg, Vic and I...JTM 45 Round-up!

Last post by louis « Sun May 15, 2011 10:35 pm
Replies: 15
by VelvetGeorge » Tue Apr 21, 2009 6:10 pm
1

2
15 Replies

33868 Views

Last post by louis
Sun May 15, 2011 10:35 pm
Rocker power switch replacement question

Last post by novosibir « Wed Apr 20, 2011 7:50 am
Replies: 7
by Dave Simpson » Wed Feb 28, 2007 8:18 am

7 Replies

22782 Views

Last post by novosibir
Wed Apr 20, 2011 7:50 am
Video from 2010 LA amp show

Last post by VelvetGeorge « Mon Nov 08, 2010 2:33 pm
Replies: 2
by VelvetGeorge » Thu Oct 07, 2010 1:57 am

2 Replies

12739 Views

Last post by VelvetGeorge
Mon Nov 08, 2010 2:33 pm
Great videos featuring a Metropoulos JTM 50 replica

Last post by SoloDallas « Sun Oct 10, 2010 4:59 am
Replies: 9
by VelvetGeorge » Thu Sep 16, 2010 5:38 pm

9 Replies

21504 Views

Last post by SoloDallas
Sun Oct 10, 2010 4:59 am
Tube info

Last post by wrea398 « Sun Dec 06, 2009 3:21 pm
Replies: 41
by Lawrence » Thu Jun 24, 2004 10:03 pm
1

2

3
41 Replies

127804 Views

Last post by wrea398
Sun Dec 06, 2009 3:21 pm
Sometimes you just have to play some guitar....

Last post by skurtix « Tue Nov 17, 2009 6:02 pm
Replies: 26
by VelvetGeorge » Fri Sep 14, 2007 4:38 pm
1

2
26 Replies

70017 Views

Last post by skurtix
Tue Nov 17, 2009 6:02 pm
50 Watt Plexi Kits!!!!

Last post by Jim SS « Tue Oct 20, 2009 11:21 am
Replies: 51
by VelvetGeorge » Tue Oct 30, 2007 3:22 pm
1

2

3

4
51 Replies

80208 Views

Last post by Jim SS
Tue Oct 20, 2009 11:21 am
100W MV kit clips from NY amp show

Last post by spaceace76 « Thu Sep 10, 2009 2:42 am
Replies: 1
by VelvetGeorge » Wed Sep 09, 2009 11:46 am

1 Replies

12694 Views

Last post by spaceace76
Thu Sep 10, 2009 2:42 am
JTM 45 Kit sound clips

Last post by AkrW « Sat Jul 18, 2009 1:51 pm
Replies: 33
by VelvetGeorge » Tue Aug 23, 2005 3:10 pm
1

2

3
33 Replies

79863 Views

Last post by AkrW
Sat Jul 18, 2009 1:51 pm
Tech listings moving to the wiki

Last post by neikeel « Wed Nov 26, 2008 6:09 am
Replies: 2
by VelvetGeorge » Tue Nov 04, 2008 12:35 pm

2 Replies

13977 Views

Last post by neikeel
Wed Nov 26, 2008 6:09 am
Counterfeit Tubes!

Last post by demonufo « Sat Jun 07, 2008 5:08 am
Replies: 17
by novosibir » Sat Nov 18, 2006 9:28 am
1

2
17 Replies

67351 Views

Last post by demonufo
Sat Jun 07, 2008 5:08 am
Dagnal vs replica sound clips

Last post by NitroLiq « Fri Jul 14, 2006 10:41 am
Replies: 80
by VelvetGeorge » Wed Dec 22, 2004 4:35 pm
1

2

3

4

5

6
80 Replies

159887 Views

Last post by NitroLiq
Fri Jul 14, 2006 10:41 am
50 watt JCM800 clone

Last post by fixer2 « Thu Jun 12, 2025 3:28 pm

by fixer2 » Thu Jun 12, 2025 3:28 pm

0 Replies

216 Views

Last post by fixer2
Thu Jun 12, 2025 3:28 pm
50 watt JCM800 clone

Last post by fixer2 « Thu Jun 12, 2025 3:27 pm

by fixer2 » Thu Jun 12, 2025 3:27 pm

0 Replies

49 Views

Last post by fixer2
Thu Jun 12, 2025 3:27 pm

Return to Board Index