Repairs, Restoration and Mods

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Live on our new server. April 2016

Last post by jsstrozza1 « Tue Oct 08, 2024 7:59 pm
Posted in Plexi Replicas by Metropoulos Amplification
Replies: 23
by VelvetGeorge » Tue Apr 26, 2016 1:12 pm » in Plexi Replicas by Metropoulos Amplification
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23 Replies

222333 Views

Last post by jsstrozza1
Tue Oct 08, 2024 7:59 pm
Back online, should be for good this time.

Last post by Peter K « Mon May 30, 2016 12:04 am
Posted in MetroAmp Store and Site
Replies: 53
by VelvetGeorge » Thu May 15, 2014 5:23 pm » in MetroAmp Store and Site
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498208 Views

Last post by Peter K
Mon May 30, 2016 12:04 am
Forum Back Online - Other Work in Progress

Last post by admin « Sat Mar 01, 2014 5:03 am
Posted in MetroAmp Store and Site

by admin » Sat Mar 01, 2014 5:03 am » in MetroAmp Store and Site

0 Replies

96580 Views

Last post by admin
Sat Mar 01, 2014 5:03 am

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Last post

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
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1795 Replies

563756 Views

Last post by danman
Mon Nov 20, 2023 8:30 pm
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
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215809 Views

Last post by Derrick
Sun Sep 25, 2022 12:09 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
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53 Replies

141334 Views

Last post by TH53
Wed Dec 08, 2021 7:02 pm
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
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37 Replies

122530 Views

Last post by Matthews Guitars
Thu Feb 25, 2021 9:40 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
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118584 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
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59 Replies

147005 Views

Last post by Roe
Tue Feb 28, 2017 4:43 am
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

46767 Views

Last post by Joshabr1
Fri Dec 19, 2014 9:10 pm
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

63697 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
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270248 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
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156033 Views

Last post by Tazin
Wed Mar 20, 2013 6:55 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

22661 Views

Last post by novosibir
Wed Apr 20, 2011 7:50 am
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

13886 Views

Last post by neikeel
Wed Nov 26, 2008 6:09 am
Replace Impedance Selector JCM 800 Valve Amp

Last post by danosol « Sat Jun 07, 2025 7:09 pm
Replies: 3
by Wriggle » Sat Jul 25, 2015 1:24 pm

3 Replies

1203 Views

Last post by danosol
Sat Jun 07, 2025 7:09 pm
Restoration metal panels for JMP Marshalls

Last post by ntrueman « Sat Apr 26, 2025 9:30 pm
Replies: 1
by Matthews Guitars » Sat Jun 20, 2020 9:46 pm

1 Replies

1236 Views

Last post by ntrueman
Sat Apr 26, 2025 9:30 pm
Langner schematic

Last post by FourT6and2 « Mon Dec 30, 2024 4:14 am
Replies: 28
by tanis4457 » Fri Jan 29, 2010 10:12 am
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56600 Views

Last post by FourT6and2
Mon Dec 30, 2024 4:14 am
JMP MV brushed aluminum panel needed or art file please

Last post by American Viking « Fri Sep 13, 2024 12:14 pm

by American Viking » Fri Sep 13, 2024 12:14 pm

0 Replies

2000 Views

Last post by American Viking
Fri Sep 13, 2024 12:14 pm
2203 No Preamp control working

Last post by acdc-angus « Mon Mar 04, 2024 9:30 am
Replies: 3
by acdc-angus » Sat Feb 24, 2024 12:58 pm

3 Replies

4483 Views

Last post by acdc-angus
Mon Mar 04, 2024 9:30 am
Messauring with ocilloscope

Last post by Ralle « Fri Mar 01, 2024 6:09 am

by Ralle » Fri Mar 01, 2024 6:09 am

0 Replies

2586 Views

Last post by Ralle
Fri Mar 01, 2024 6:09 am
PEC pot - setting check

Last post by CoffeeTones « Sun Jan 28, 2024 12:10 pm

by CoffeeTones » Sun Jan 28, 2024 12:10 pm

0 Replies

2357 Views

Last post by CoffeeTones
Sun Jan 28, 2024 12:10 pm
Jose v1, Bootstraped Cathode Follower, and CF Boost switch

Last post by luiscristiano43 « Sat Nov 11, 2023 2:02 pm
Replies: 8
by mightymike » Sat Dec 21, 2013 1:23 am

8 Replies

9879 Views

Last post by luiscristiano43
Sat Nov 11, 2023 2:02 pm
Larry's Grounding Scheme on a 2204 circuit

Last post by Maria465 « Sat Nov 11, 2023 1:39 am
Replies: 10
by syscokid » Mon Mar 28, 2011 4:01 pm

10 Replies

17500 Views

Last post by Maria465
Sat Nov 11, 2023 1:39 am
50-watt troubleshooting help

Last post by hourglass « Mon Oct 30, 2023 6:11 pm

by hourglass » Mon Oct 30, 2023 6:11 pm

0 Replies

2252 Views

Last post by hourglass
Mon Oct 30, 2023 6:11 pm
Filter Caps - 1959 Super Lead

Last post by Tazin « Sun Oct 29, 2023 4:27 pm
Replies: 10
by rgalpin » Thu May 19, 2005 10:09 am

10 Replies

30369 Views

Last post by Tazin
Sun Oct 29, 2023 4:27 pm
Faceplate for Marshall Silver Jubilee 2555 anywhere?

Last post by Medronio « Thu Oct 05, 2023 9:22 am

by Medronio » Thu Oct 05, 2023 9:22 am

0 Replies

2601 Views

Last post by Medronio
Thu Oct 05, 2023 9:22 am
Traynor YGL-3/Mark III - 6L6 vs 6CA7

Last post by Janglin_Jack « Wed Jul 12, 2023 3:44 pm
Replies: 7
by Janglin_Jack » Fri May 26, 2023 4:01 pm

7 Replies

6134 Views

Last post by Janglin_Jack
Wed Jul 12, 2023 3:44 pm
5e3 clone

Last post by danman « Wed Jun 28, 2023 7:54 pm
Replies: 49
by fixer2 » Fri Feb 12, 2021 1:09 pm
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49 Replies

32598 Views

Last post by danman
Wed Jun 28, 2023 7:54 pm
How to change from EL34 to KT88

Last post by BehindBlueEyes « Tue Jun 06, 2023 11:49 pm
Replies: 2
by tjohn1968 » Sun Jun 19, 2022 9:40 pm

2 Replies

4254 Views

Last post by BehindBlueEyes
Tue Jun 06, 2023 11:49 pm
Mesa DC-3 need help!

Last post by 45auto « Sat Mar 11, 2023 10:34 pm
Replies: 2
by 45auto » Fri Mar 10, 2023 10:18 pm

2 Replies

3610 Views

Last post by 45auto
Sat Mar 11, 2023 10:34 pm
Humidity.....

Last post by CAlbs_Plexi50 « Wed Mar 01, 2023 2:29 pm
Replies: 5
by Mynameisfritz » Mon Dec 12, 2011 12:47 pm

5 Replies

5636 Views

Last post by CAlbs_Plexi50
Wed Mar 01, 2023 2:29 pm
Hiwatt Custom Studio/Stage Schematics?

Last post by Tinners1983 « Fri Feb 03, 2023 11:02 am
Replies: 2
by RagnarMarGunn » Sat Feb 22, 2014 5:58 am

2 Replies

4814 Views

Last post by Tinners1983
Fri Feb 03, 2023 11:02 am
Potentiometer Wattage question

Last post by Soulchief « Tue Nov 08, 2022 3:04 pm

by Soulchief » Tue Nov 08, 2022 3:04 pm

0 Replies

2521 Views

Last post by Soulchief
Tue Nov 08, 2022 3:04 pm
fake mustards

Last post by PLM « Mon Oct 31, 2022 9:02 am
Replies: 187
by crumb » Thu Nov 01, 2018 5:32 pm
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187 Replies

56154 Views

Last post by PLM
Mon Oct 31, 2022 9:02 am
paul gilbert modded marshall

Last post by fixer2 « Wed Oct 26, 2022 4:27 pm
Replies: 19
by Jeremy1283 » Wed Aug 06, 2014 8:19 pm
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26851 Views

Last post by fixer2
Wed Oct 26, 2022 4:27 pm
Larry Grounding Heater CT wire route

Last post by Beano69 « Sat Sep 03, 2022 9:36 pm

by Beano69 » Sat Sep 03, 2022 9:36 pm

0 Replies

2593 Views

Last post by Beano69
Sat Sep 03, 2022 9:36 pm
EL34 not glowing blue

Last post by Dave1992 « Sat Aug 20, 2022 7:28 pm
Replies: 3
by Dave1992 » Tue Aug 16, 2022 7:48 pm

3 Replies

4093 Views

Last post by Dave1992
Sat Aug 20, 2022 7:28 pm
Dual Bright Caps?

Last post by awangotango « Mon Aug 15, 2022 12:46 pm
Replies: 8
by somethin'else » Mon Feb 28, 2011 11:58 pm

8 Replies

7035 Views

Last post by awangotango
Mon Aug 15, 2022 12:46 pm
metaltronix m-1000

Last post by uiovbged332 « Sun Aug 14, 2022 5:00 am
Replies: 15
by tpruitt » Thu May 16, 2013 6:25 pm
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43431 Views

Last post by uiovbged332
Sun Aug 14, 2022 5:00 am
That's it, I'm going to buy a variac, but...

Last post by uiovbged332 « Sat Aug 13, 2022 5:20 pm
Replies: 11
by mwm523 » Fri Jan 04, 2008 10:14 pm

11 Replies

11279 Views

Last post by uiovbged332
Sat Aug 13, 2022 5:20 pm
Dual PPIMV LM Layout by SDM

Last post by danman « Wed Aug 10, 2022 5:34 pm
Replies: 11
by white noise » Fri Mar 18, 2016 3:46 pm

11 Replies

14490 Views

Last post by danman
Wed Aug 10, 2022 5:34 pm
Frank Levi Superkill Mod (AFD sound) Slash S.I.R #36

Last post by Antonio S « Thu Jul 21, 2022 12:26 pm

by Antonio S » Thu Jul 21, 2022 12:26 pm

0 Replies

2856 Views

Last post by Antonio S
Thu Jul 21, 2022 12:26 pm
Cameron mod

Last post by uiovbged332 « Wed Jul 06, 2022 9:31 pm
Replies: 97
by univalve1234 » Tue Dec 14, 2010 10:16 am
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47618 Views

Last post by uiovbged332
Wed Jul 06, 2022 9:31 pm
Has anyone here installed power scaling in their Plexi?

Last post by uiovbged332 « Wed Jul 06, 2022 9:05 pm
Replies: 11
by J.DavisNJ » Wed Dec 12, 2007 3:19 pm

11 Replies

13704 Views

Last post by uiovbged332
Wed Jul 06, 2022 9:05 pm
Ghost note problem...help!

Last post by uiovbged332 « Wed Jul 06, 2022 8:52 pm
Replies: 23
by tonebottle » Mon Nov 19, 2007 1:09 pm
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23 Replies

26139 Views

Last post by uiovbged332
Wed Jul 06, 2022 8:52 pm
Marshall 5210 solid state mods?

Last post by uiovbged332 « Wed Jul 06, 2022 5:28 pm
Replies: 5
by Matti » Sun Sep 16, 2012 1:54 pm

5 Replies

6481 Views

Last post by uiovbged332
Wed Jul 06, 2022 5:28 pm
Preamp tubes in parallel

Last post by uiovbged332 « Wed Jul 06, 2022 4:46 pm
Replies: 13
by stoo » Wed Nov 08, 2006 12:34 am

13 Replies

28689 Views

Last post by uiovbged332
Wed Jul 06, 2022 4:46 pm
Lamar Master Vol

Last post by uiovbged332 « Wed Jul 06, 2022 3:23 pm
Replies: 2
by RoryB » Tue Feb 19, 2008 2:31 am

2 Replies

5378 Views

Last post by uiovbged332
Wed Jul 06, 2022 3:23 pm
Soldano Hot rod Mod fopr marshall -fender on the fleabay

Last post by uiovbged332 « Wed Jul 06, 2022 3:04 pm
Replies: 10
by MRX2099 » Thu Jan 25, 2007 9:21 am

10 Replies

19884 Views

Last post by uiovbged332
Wed Jul 06, 2022 3:04 pm
Restoration For '68 JMP Super PA 100 watt

Last post by uiovbged332 « Wed Jul 06, 2022 2:26 pm
Replies: 14
by deliturko » Tue Oct 28, 2008 8:09 pm

14 Replies

24665 Views

Last post by uiovbged332
Wed Jul 06, 2022 2:26 pm
What is this mod to 2204

Last post by uiovbged332 « Wed Jul 06, 2022 2:23 pm
Replies: 55
by Icarus » Sun Jan 16, 2011 9:51 pm
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48292 Views

Last post by uiovbged332
Wed Jul 06, 2022 2:23 pm
Sozo Silver Micas

Last post by uiovbged332 « Wed Jul 06, 2022 12:22 pm
Replies: 3
by rip » Mon Jan 29, 2018 12:47 pm

3 Replies

4820 Views

Last post by uiovbged332
Wed Jul 06, 2022 12:22 pm

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