Technical Reference

Forum

Topics

Posts

Last post

45/100 Build Journal
Detailed assembly steps separated into threads.
Moderator: VelvetGeorge
Topics: 121

121 Topics

1771 Posts

Last post Re: Manual for 45/100 build..…
by rubaabur View the latest post
Sun Aug 13, 2023 4:01 pm
Marshall Schematics
Moderator: VelvetGeorge
Topics: 18

18 Topics

29 Posts

Last post Marshall Haze 40 schematic
by Flames1950 View the latest post
Sun Nov 14, 2010 9:57 am
Circuit Board layouts
Moderator: VelvetGeorge
Topics: 13

13 Topics

220 Posts

Last post by VelvetGeorge View the latest post
Tue Feb 05, 2008 1:53 pm
Transformer Wiring Diagrams
Moderator: VelvetGeorge
Topics: 13

13 Topics

18 Posts

Last post Re: Mercury Magnetics P4550JT…
by VelvetGeorge View the latest post
Mon Sep 22, 2008 12:58 pm
Amp and Kit Info
Moderator: VelvetGeorge
Topics: 14

14 Topics

46 Posts

Last post Re: 100 watt plexi kit instru…
by VelvetGeorge View the latest post
Mon Sep 22, 2008 6:41 pm
12-Series Build Journal
Moderator: VelvetGeorge
Topics: 97

97 Topics

3172 Posts

Last post Re: Anyone have a build Journ…
by zephyrblau View the latest post
Sat Dec 09, 2023 10:52 pm

Active topics

Replies

Views

Last post

Blog style journal of 45/100 build steps

Last post by AJW « Fri Aug 31, 2018 1:53 pm
Replies: 14
by VelvetGeorge » Fri Apr 25, 2008 11:09 am

14 Replies

35120 Views

Last post by AJW
Fri Aug 31, 2018 1:53 pm
45/100 bill of materials

Last post by Roe « Mon Apr 27, 2009 3:29 am
Replies: 17
by VelvetGeorge » Mon Apr 28, 2008 5:02 pm
1

2
17 Replies

42936 Views

Last post by Roe
Mon Apr 27, 2009 3:29 am
12000 pictures from start to finish

Last post by leleduke « Thu Apr 17, 2008 8:57 pm
Replies: 16
by leleduke » Sun Dec 31, 2006 11:16 am
1

2
16 Replies

33298 Views

Last post by leleduke
Thu Apr 17, 2008 8:57 pm
100 Watt Kit Boards Lead and Bass

Last post by VelvetGeorge « Mon Dec 17, 2007 8:06 pm

by VelvetGeorge » Mon Dec 17, 2007 8:06 pm

0 Replies

17617 Views

Last post by VelvetGeorge
Mon Dec 17, 2007 8:06 pm
'67 100 watt board layout

Last post by Billy Batz « Sun Jan 07, 2007 3:21 pm
Replies: 22
by VelvetGeorge » Thu Aug 11, 2005 4:53 pm
1

2
22 Replies

63304 Views

Last post by Billy Batz
Sun Jan 07, 2007 3:21 pm
67 100 watt cap board layout

Last post by rockstah « Tue Dec 26, 2006 1:17 am
Replies: 14
by VelvetGeorge » Fri Aug 19, 2005 12:39 am

14 Replies

60919 Views

Last post by rockstah
Tue Dec 26, 2006 1:17 am
Amp layouts, courtesy of BillyBatz

Last post by RedHouse « Sun Nov 19, 2006 9:51 pm
Replies: 146
by VelvetGeorge » Mon Dec 12, 2005 4:49 pm
1

…

6

7

8

9

10
146 Replies

184203 Views

Last post by RedHouse
Sun Nov 19, 2006 9:51 pm
67 and '68 era 100 watt parts list

Last post by Flames1950 « Tue Oct 17, 2006 4:21 pm
Replies: 16
by VelvetGeorge » Tue Aug 23, 2005 10:01 pm
1

2
16 Replies

61007 Views

Last post by Flames1950
Tue Oct 17, 2006 4:21 pm
JTM45/100 capacitor board layout

Last post by pongo316 « Thu Jun 08, 2006 9:58 am
Replies: 7
by VelvetGeorge » Fri Aug 19, 2005 12:07 am

7 Replies

31765 Views

Last post by pongo316
Thu Jun 08, 2006 9:58 am
'68 100 watt board layout

Last post by rockstah « Mon Oct 31, 2005 9:20 am
Replies: 14
by VelvetGeorge » Fri Aug 12, 2005 3:29 pm

14 Replies

51319 Views

Last post by rockstah
Mon Oct 31, 2005 9:20 am
Anyone have a build Journal with pics? (Night Owl's)

Last post by zephyrblau « Sat Dec 09, 2023 10:52 pm
Replies: 3
by mtross » Wed May 06, 2020 10:31 pm

3 Replies

17061 Views

Last post by zephyrblau
Sat Dec 09, 2023 10:52 pm
Manual for 45/100 build....

Last post by rubaabur « Sun Aug 13, 2023 4:01 pm
Replies: 12
by clusterstudios » Tue Feb 24, 2009 12:12 pm

12 Replies

40894 Views

Last post by rubaabur
Sun Aug 13, 2023 4:01 pm
12XXX build in a 45/100 chassis ?

Last post by neikeel « Fri Mar 24, 2023 5:44 pm
Replies: 1
by zephyrblau » Sat Mar 04, 2023 2:11 am

1 Replies

7400 Views

Last post by neikeel
Fri Mar 24, 2023 5:44 pm
12xxx Series build vs 1969 100w build

Last post by zephyrblau « Sat Mar 04, 2023 1:58 am
Replies: 1
by Robocop101985 » Sun Jan 15, 2023 2:22 am

1 Replies

6304 Views

Last post by zephyrblau
Sat Mar 04, 2023 1:58 am
use of the 1 ohm 2w resistors - power tube sockets

Last post by uiovbged332 « Wed Jul 06, 2022 7:17 pm
Replies: 8
by Xplorer » Thu Mar 08, 2012 7:02 am

8 Replies

14045 Views

Last post by uiovbged332
Wed Jul 06, 2022 7:17 pm
NOS-style JTM 45/100 on Metro chassis

Last post by uiovbged332 « Wed Jul 06, 2022 5:49 pm
Replies: 56
by emmjaydubya » Sat May 17, 2014 6:54 pm
1

2

3

4
56 Replies

69604 Views

Last post by uiovbged332
Wed Jul 06, 2022 5:49 pm
Please check 12xxx build diagrams

Last post by uiovbged332 « Wed Jul 06, 2022 4:47 pm
Replies: 49
by Night Owl » Sat Aug 29, 2009 8:50 pm
1

2

3

4
49 Replies

85334 Views

Last post by uiovbged332
Wed Jul 06, 2022 4:47 pm
A new 12 000 - still working - update

Last post by uiovbged332 « Wed Jul 06, 2022 4:20 pm
Replies: 46
by ReidarNikolai » Sun Mar 16, 2014 11:52 pm
1

2

3

4
46 Replies

57485 Views

Last post by uiovbged332
Wed Jul 06, 2022 4:20 pm
12xxx Larry Ground

Last post by uiovbged332 « Wed Jul 06, 2022 1:30 pm
Replies: 128
by vh junkie » Thu Jan 27, 2011 2:03 pm
1

…

5

6

7

8

9
128 Replies

101900 Views

Last post by uiovbged332
Wed Jul 06, 2022 1:30 pm
Authentic JTM 45/100 build diary. Clips added.

Last post by uiovbged332 « Wed Jul 06, 2022 1:14 pm
Replies: 179
by VintageCharlie » Sun Jun 06, 2010 8:42 am
1

…

8

9

10

11

12
179 Replies

129979 Views

Last post by uiovbged332
Wed Jul 06, 2022 1:14 pm
12000 is cursed

Last post by Did J « Fri Dec 31, 2021 8:01 am
Replies: 11
by Probably Loud » Fri Jul 24, 2020 10:04 pm

11 Replies

23188 Views

Last post by Did J
Fri Dec 31, 2021 8:01 am
12,000 build instructions

Last post by Fanman « Wed Feb 24, 2021 8:42 pm

by Fanman » Wed Feb 24, 2021 8:42 pm

0 Replies

8696 Views

Last post by Fanman
Wed Feb 24, 2021 8:42 pm
Build journal docs

Last post by Fanman « Wed Feb 24, 2021 8:36 pm
Replies: 7
by tWreCK » Thu Feb 02, 2017 10:00 am

7 Replies

18359 Views

Last post by Fanman
Wed Feb 24, 2021 8:36 pm
Night Owl's build journal.

Last post by mtross « Mon Apr 27, 2020 10:15 pm

by mtross » Mon Apr 27, 2020 10:15 pm

0 Replies

7781 Views

Last post by mtross
Mon Apr 27, 2020 10:15 pm
JTM 45/100 Proper grounding?

Last post by Twistingcrow « Sat Feb 15, 2020 2:03 pm
Replies: 9
by rjsamplification » Tue Jun 06, 2017 1:47 pm

9 Replies

18396 Views

Last post by Twistingcrow
Sat Feb 15, 2020 2:03 pm
The stock '68 12xxx layout

Last post by johnnyquest « Mon Nov 11, 2019 9:21 pm
Replies: 14
by tWreCK » Sun Feb 05, 2017 7:53 pm

14 Replies

36646 Views

Last post by johnnyquest
Mon Nov 11, 2019 9:21 pm
Wiring routing and Lead dress

Last post by rip « Wed Oct 09, 2019 10:10 am

by rip » Wed Oct 09, 2019 10:10 am

0 Replies

7549 Views

Last post by rip
Wed Oct 09, 2019 10:10 am
Unused transformer leads

Last post by rip « Tue Jun 25, 2019 9:12 am

by rip » Tue Jun 25, 2019 9:12 am

0 Replies

7289 Views

Last post by rip
Tue Jun 25, 2019 9:12 am
JTM45/100 Aluminum Chassis Gauge

Last post by VelvetGeorge « Thu Jun 22, 2017 4:16 pm
Replies: 2
by rip » Tue Jun 20, 2017 8:30 am

2 Replies

9181 Views

Last post by VelvetGeorge
Thu Jun 22, 2017 4:16 pm
standby switch wiring 45/100

Last post by rjsamplification « Wed Jun 21, 2017 5:22 pm
Replies: 4
by dan_tramble » Wed Mar 15, 2017 3:34 pm

4 Replies

10409 Views

Last post by rjsamplification
Wed Jun 21, 2017 5:22 pm
1202-84 with EL34s

Last post by rip « Thu Jun 08, 2017 2:18 pm
Replies: 2
by rip » Mon May 22, 2017 4:02 pm

2 Replies

8814 Views

Last post by rip
Thu Jun 08, 2017 2:18 pm
Forming Filter Caps in a JTM 45/100

Last post by Roe « Sat May 06, 2017 9:27 am
Replies: 21
by rip » Sat Apr 17, 2010 4:17 pm
1

2
21 Replies

36951 Views

Last post by Roe
Sat May 06, 2017 9:27 am
Bias Circuit

Last post by rip « Wed May 03, 2017 1:34 pm
Replies: 2
by rip » Sat Apr 22, 2017 12:54 pm

2 Replies

8699 Views

Last post by rip
Wed May 03, 2017 1:34 pm
Fuseholder Board

Last post by rip « Sat Apr 22, 2017 12:42 pm
Replies: 2
by rip » Sat Mar 25, 2017 8:36 am

2 Replies

8532 Views

Last post by rip
Sat Apr 22, 2017 12:42 pm
45/100 inspired build

Last post by ol foot « Sun Mar 19, 2017 7:21 am
Replies: 5
by fusionbear » Sat Mar 18, 2017 1:19 pm

5 Replies

11214 Views

Last post by ol foot
Sun Mar 19, 2017 7:21 am
Early MetroAmp 1204-43 Voltages

Last post by VelvetGeorge « Sat Mar 18, 2017 4:45 pm
Replies: 3
by rip » Fri Mar 17, 2017 3:48 pm

3 Replies

8679 Views

Last post by VelvetGeorge
Sat Mar 18, 2017 4:45 pm
Hi

Last post by NY Chief « Thu Feb 02, 2017 3:58 pm
Replies: 2
by JimiJames » Sat Jan 28, 2017 7:13 pm

2 Replies

9687 Views

Last post by NY Chief
Thu Feb 02, 2017 3:58 pm
new 2203 build completed

Last post by neikeel « Wed Jan 18, 2017 9:42 am
Replies: 1
by neikeel » Wed Jan 18, 2017 9:32 am

1 Replies

8741 Views

Last post by neikeel
Wed Jan 18, 2017 9:42 am
Question about pre-amp cap wiring and cap board caps.

Last post by neikeel « Sat Jan 07, 2017 2:56 pm
Replies: 3
by JimiJames » Thu Jan 05, 2017 6:50 am

3 Replies

10676 Views

Last post by neikeel
Sat Jan 07, 2017 2:56 pm
new 45/100 build

Last post by dan_tramble « Sun Oct 23, 2016 7:52 am
Replies: 2
by dan_tramble » Fri Oct 21, 2016 3:48 pm

2 Replies

8193 Views

Last post by dan_tramble
Sun Oct 23, 2016 7:52 am
12006 Build

Last post by axeman « Sat Aug 20, 2016 2:04 am
Replies: 1
by YMI5150? » Thu Aug 18, 2016 4:38 pm

1 Replies

9636 Views

Last post by axeman
Sat Aug 20, 2016 2:04 am
First 12 series build

Last post by axeman « Fri Apr 29, 2016 12:34 pm
Replies: 78
by Lbrown3743 » Sun Dec 21, 2014 4:54 am
1

2

3

4

5

6
78 Replies

82930 Views

Last post by axeman
Fri Apr 29, 2016 12:34 pm
12003

Last post by vanhalen5150 « Fri Mar 18, 2016 6:04 am
Replies: 86
by vanhalen5150 » Wed Jun 13, 2012 3:41 pm
1

2

3

4

5

6
86 Replies

95363 Views

Last post by vanhalen5150
Fri Mar 18, 2016 6:04 am
Voltage switch

Last post by neikeel « Sun Feb 21, 2016 8:38 am
Replies: 1
by thompsoninst » Sat Feb 13, 2016 4:49 pm

1 Replies

9279 Views

Last post by neikeel
Sun Feb 21, 2016 8:38 am
Help on Night Owl's Step 10 instructions

Last post by dante « Mon Dec 07, 2015 9:19 am
Replies: 19
by dante » Sat Aug 22, 2015 11:44 am
1

2
19 Replies

26913 Views

Last post by dante
Mon Dec 07, 2015 9:19 am
10,000 Series NOS Build

Last post by Probably Loud « Sun Nov 22, 2015 11:48 am
Replies: 10
by Probably Loud » Fri Oct 09, 2015 4:56 pm

10 Replies

16369 Views

Last post by Probably Loud
Sun Nov 22, 2015 11:48 am
Cap Forming Procedure for 12xxx Build

Last post by jnew « Tue Sep 15, 2015 9:02 am
Replies: 13
by YMI5150? » Tue Feb 21, 2012 11:54 am

13 Replies

27340 Views

Last post by jnew
Tue Sep 15, 2015 9:02 am
12XXX Build 05/2010

Last post by edisoncarter « Sun Aug 16, 2015 6:07 am
Replies: 277
by vanhalen5150 » Mon Apr 19, 2010 8:05 am
1

…

15

16

17

18

19
277 Replies

149695 Views

Last post by edisoncarter
Sun Aug 16, 2015 6:07 am
12000 amp build in the UK!

Last post by rgorke « Wed Jul 15, 2015 10:00 am
Replies: 7
by shackman » Sun May 17, 2015 8:48 am

7 Replies

14065 Views

Last post by rgorke
Wed Jul 15, 2015 10:00 am
Channel Problem with JTM 45/100 Build

Last post by neikeel « Thu May 28, 2015 4:30 pm
Replies: 2
by jckid649 » Thu May 28, 2015 12:22 am

2 Replies

8782 Views

Last post by neikeel
Thu May 28, 2015 4:30 pm

Return to Board Index