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18Watt Technical Discussion

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Last post by Graydon « Tue 07/23/24 5:50 pm
Posted in By the Bench

by Graydon » Tue 07/23/24 5:50 pm » in By the Bench

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Last post by Graydon
Tue 07/23/24 5:50 pm
Voltage Dropping Zener Diodes

Last post by JMPGuitars « Tue 10/06/20 8:16 am

by JMPGuitars » Tue 10/06/20 8:16 am

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Last post by JMPGuitars
Tue 10/06/20 8:16 am
Soldering Technique

Last post by JMPGuitars « Fri 07/26/19 9:03 am
Replies: 2
by JMPGuitars » Sun 06/09/19 7:29 am

2 Replies

20339 Views

Last post by JMPGuitars
Fri 07/26/19 9:03 am
Modern Ground Schemes

Last post by JMPGuitars « Fri 04/10/20 6:20 pm
Replies: 4
by JMPGuitars » Tue 05/07/19 7:48 pm

4 Replies

23563 Views

Last post by JMPGuitars
Fri 04/10/20 6:20 pm
This room is for 18W-related posts only!

Last post by Graydon « Fri 04/14/06 10:09 am

by Graydon » Fri 04/14/06 10:09 am

0 Replies

20464 Views

Last post by Graydon
Fri 04/14/06 10:09 am
What Every Newcomer Should Know...

Last post by dustin_writes « Wed 08/23/06 1:42 pm
Replies: 54
by Gabi » Fri 11/18/05 12:10 pm
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89151 Views

Last post by dustin_writes
Wed 08/23/06 1:42 pm

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Tremolo TMB Questions

Last post by Rvaughan68 « Thu 08/22/24 10:36 am
Replies: 79
by JMPGuitars » Wed 05/05/21 6:24 pm
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79 Replies

24100 Views

Last post by Rvaughan68
Thu 08/22/24 10:36 am
Pentode (EF86) pre-amps and combo's?

Last post by JMPGuitars « Sat 05/11/24 9:31 am
Replies: 74
by mark0614 » Fri 11/02/07 9:18 pm
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48953 Views

Last post by JMPGuitars
Sat 05/11/24 9:31 am
18 watt fizz: please help me diagnose this?

Last post by HarryPotter69 « Sun 02/25/24 11:54 am
Replies: 171
by TomOlsen1 » Thu 01/14/10 4:09 am
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185240 Views

Last post by HarryPotter69
Sun 02/25/24 11:54 am
Help improve pp-18 tone

Last post by Isaac Stuckey « Sun 01/19/14 11:32 pm
Replies: 110
by asd » Mon 08/22/11 9:53 pm
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70940 Views

Last post by Isaac Stuckey
Sun 01/19/14 11:32 pm
Problem with Tremolo 18w

Last post by Bieworm « Tue 09/17/24 6:07 am
Replies: 1
by mitchfloyd » Tue 09/17/24 5:44 am

1 Replies

14 Views

Last post by Bieworm
Tue 09/17/24 6:07 am
Clone 1974x to SLP ( RR ) plexi

Last post by Bieworm « Mon 09/16/24 6:11 am
Replies: 1
by Plig88 » Sun 09/15/24 11:39 am

1 Replies

44 Views

Last post by Bieworm
Mon 09/16/24 6:11 am
Newby Mojotone 18 Watt Build

Last post by Daviedawg « Sun 09/15/24 2:31 am
Replies: 9
by TXFlatSix » Fri 09/13/24 9:33 am

9 Replies

126 Views

Last post by Daviedawg
Sun 09/15/24 2:31 am
General Questions on a recent build.

Last post by jlzuzze « Sat 09/14/24 4:30 pm

by jlzuzze » Sat 09/14/24 4:30 pm

0 Replies

27 Views

Last post by jlzuzze
Sat 09/14/24 4:30 pm
18watt tmb circutry speaker

Last post by Bieworm « Thu 09/12/24 2:53 am
Replies: 1
by Allendaniels » Wed 09/11/24 9:35 pm

1 Replies

57 Views

Last post by Bieworm
Thu 09/12/24 2:53 am
PI hum

Last post by Daviedawg « Tue 09/10/24 2:14 am
Replies: 5
by NSky » Thu 09/05/24 7:00 pm

5 Replies

106 Views

Last post by Daviedawg
Tue 09/10/24 2:14 am
Modulus Amps Marshbar

Last post by SpeedTrip « Thu 09/05/24 8:42 am
Replies: 24
by SpeedTrip » Sat 05/25/24 11:36 am
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1892 Views

Last post by SpeedTrip
Thu 09/05/24 8:42 am
Tmb circuitry

Last post by Bieworm « Wed 09/04/24 11:26 am
Replies: 1
by Allendaniels » Tue 09/03/24 5:34 pm

1 Replies

79 Views

Last post by Bieworm
Wed 09/04/24 11:26 am
How to reduce mid range?

Last post by Bieworm « Wed 09/04/24 11:23 am
Replies: 1
by NSky » Tue 09/03/24 3:29 pm

1 Replies

77 Views

Last post by Bieworm
Wed 09/04/24 11:23 am
Mojotone build - intensity as volume

Last post by Daviedawg « Sat 08/24/24 2:27 am
Replies: 1
by Hippie Joe » Fri 08/23/24 2:54 pm

1 Replies

131 Views

Last post by Daviedawg
Sat 08/24/24 2:27 am
High pitch oscillation on trem channel

Last post by JMPGuitars « Thu 08/15/24 8:39 am
Replies: 9
by kaheksa toista » Mon 08/12/24 8:02 am

9 Replies

595 Views

Last post by JMPGuitars
Thu 08/15/24 8:39 am
18W EF86 XXL Recording Amp

Last post by JMPGuitars « Wed 08/14/24 9:43 am
Replies: 7
by JMPGuitars » Tue 08/06/24 7:13 pm

7 Replies

636 Views

Last post by JMPGuitars
Wed 08/14/24 9:43 am
Question about JMPGuitars’ “Modern Grounding Schemes”

Last post by JMPGuitars « Sun 08/11/24 6:02 pm
Replies: 1
by jimoreilly » Sun 08/11/24 4:23 pm

1 Replies

400 Views

Last post by JMPGuitars
Sun 08/11/24 6:02 pm
18 Watt TMB Superlite output sags into silence

Last post by ian@belsonique.com « Sun 07/28/24 4:53 pm
Replies: 17
by ian@belsonique.com » Mon 07/15/24 12:18 am

17 Replies

974 Views

Last post by ian@belsonique.com
Sun 07/28/24 4:53 pm
AC heaters done right….how to get it done

Last post by TriodeLuvr « Sun 07/28/24 2:43 pm
Replies: 17
by Doxie man » Sat 08/28/21 9:01 pm

17 Replies

6957 Views

Last post by TriodeLuvr
Sun 07/28/24 2:43 pm
PP design ideas @ 100mA HT current

Last post by JMPGuitars « Wed 07/24/24 10:27 am
Replies: 2
by fyzygy » Wed 07/24/24 12:24 am

2 Replies

356 Views

Last post by JMPGuitars
Wed 07/24/24 10:27 am
New build but no output

Last post by Daviedawg « Sat 07/20/24 2:15 am
Replies: 17
by armandodiaz » Sat 07/13/24 11:32 pm

17 Replies

795 Views

Last post by Daviedawg
Sat 07/20/24 2:15 am
Bias question for push pull El84

Last post by Davidscott « Mon 07/15/24 6:47 pm
Replies: 2
by Davidscott » Mon 07/15/24 2:36 pm

2 Replies

405 Views

Last post by Davidscott
Mon 07/15/24 6:47 pm
Why do people design outside of specs of EL84?

Last post by Davidscott « Mon 07/15/24 1:41 pm
Replies: 5
by Davidscott » Fri 07/12/24 3:20 pm

5 Replies

518 Views

Last post by Davidscott
Mon 07/15/24 1:41 pm
Newbie Confusion

Last post by gabasa « Tue 07/09/24 7:53 pm
Replies: 2
by gabasa » Tue 07/09/24 12:50 am

2 Replies

405 Views

Last post by gabasa
Tue 07/09/24 7:53 pm
Mojotone 18W chassis for combo build - tube orientation

Last post by Bieworm « Sat 06/29/24 4:05 pm
Replies: 3
by jimoreilly » Tue 06/25/24 12:35 pm

3 Replies

452 Views

Last post by Bieworm
Sat 06/29/24 4:05 pm
TT-JC18 Add gain stage ?

Last post by Tomten « Wed 06/26/24 11:06 am
Replies: 16
by Tomten » Wed 06/19/24 12:38 pm

16 Replies

913 Views

Last post by Tomten
Wed 06/26/24 11:06 am
Lite 2b(ish) from scratch !

Last post by GodoFre « Tue 06/18/24 2:50 am
Replies: 5
by GodoFre » Thu 04/25/24 1:25 am

5 Replies

775 Views

Last post by GodoFre
Tue 06/18/24 2:50 am
18W tube amp build success

Last post by Daviedawg « Thu 06/13/24 2:49 am
Replies: 3
by anatolewilson » Wed 06/12/24 5:30 am

3 Replies

478 Views

Last post by Daviedawg
Thu 06/13/24 2:49 am
Could anyone confirm if I'm on the right track?

Last post by AussieTim « Tue 06/04/24 9:35 pm
Replies: 2
by DoraFitch » Tue 06/04/24 3:37 am

2 Replies

409 Views

Last post by AussieTim
Tue 06/04/24 9:35 pm
18 Watt Lite Test Readings?

Last post by JMPGuitars « Thu 05/30/24 9:45 am
Replies: 80
by tatter75 » Wed 04/17/24 10:21 am
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6680 Views

Last post by JMPGuitars
Thu 05/30/24 9:45 am
New 18W build started - seeking feedback on WIP

Last post by Bieworm « Wed 05/29/24 11:57 am
Replies: 17
by jimoreilly » Sat 05/18/24 1:58 pm

17 Replies

1515 Views

Last post by Bieworm
Wed 05/29/24 11:57 am
SIII build from scratch

Last post by AussieTim « Tue 05/28/24 10:14 pm
Replies: 89
by AussieTim » Tue 08/06/19 6:52 am
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35394 Views

Last post by AussieTim
Tue 05/28/24 10:14 pm
230v LED keeps blowing, any way to protect it?

Last post by Bieworm « Thu 05/23/24 12:50 pm
Replies: 1
by tatter75 » Thu 05/23/24 11:40 am

1 Replies

427 Views

Last post by Bieworm
Thu 05/23/24 12:50 pm
Mojo vs Ceria

Last post by JMPGuitars « Thu 05/23/24 10:48 am
Replies: 6
by armandodiaz » Tue 05/21/24 11:55 am

6 Replies

720 Views

Last post by JMPGuitars
Thu 05/23/24 10:48 am
Next Build

Last post by lavrgs « Thu 05/09/24 9:57 am
Replies: 58
by lavrgs » Sun 08/16/20 2:19 pm
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15041 Views

Last post by lavrgs
Thu 05/09/24 9:57 am
CTS vs Alpha Pots?

Last post by Metfoo « Fri 05/03/24 8:50 am
Replies: 3
by Metfoo » Thu 05/02/24 3:27 pm

3 Replies

842 Views

Last post by Metfoo
Fri 05/03/24 8:50 am
18W Tremolo Tick Resolved

Last post by roadshow « Thu 05/02/24 1:08 pm
Replies: 6
by roadshow » Wed 05/01/24 8:21 pm

6 Replies

684 Views

Last post by roadshow
Thu 05/02/24 1:08 pm
Why do some pedals behave this way with my amp?

Last post by JMPGuitars « Wed 05/01/24 2:43 pm
Replies: 1
by renehawk » Wed 05/01/24 11:55 am

1 Replies

475 Views

Last post by JMPGuitars
Wed 05/01/24 2:43 pm
New Mojotone tmb build

Last post by Daviedawg « Wed 05/01/24 2:40 am
Replies: 1
by Somax1975 » Tue 04/30/24 11:46 am

1 Replies

487 Views

Last post by Daviedawg
Wed 05/01/24 2:40 am
Any thoughts

Last post by AussieTim « Thu 04/25/24 9:12 am
Replies: 1
by donaldthomas » Thu 04/25/24 2:56 am

1 Replies

542 Views

Last post by AussieTim
Thu 04/25/24 9:12 am
Help me know

Last post by JMPGuitars « Mon 04/22/24 4:20 pm
Replies: 3
by Bieworm » Mon 04/22/24 12:01 pm

3 Replies

592 Views

Last post by JMPGuitars
Mon 04/22/24 4:20 pm
Guidance on 18w TMB Layout adjustments.

Last post by Bieworm « Mon 04/22/24 12:37 pm
Replies: 1
by MartinL » Sun 04/21/24 11:26 am

1 Replies

587 Views

Last post by Bieworm
Mon 04/22/24 12:37 pm
Tremolo TMB surgery

Last post by Bieworm « Tue 04/16/24 12:22 pm
Replies: 12
by Bieworm » Mon 04/15/24 1:56 am

12 Replies

1738 Views

Last post by Bieworm
Tue 04/16/24 12:22 pm
18w Superlite Build

Last post by Bieworm « Mon 04/15/24 1:25 am
Replies: 3
by fenderfan8 » Sun 04/14/24 3:27 pm

3 Replies

728 Views

Last post by Bieworm
Mon 04/15/24 1:25 am
Hammond organ chassis donor build

Last post by bvayling « Sat 04/13/24 1:22 pm
Replies: 2
by fenderfan8 » Fri 01/12/24 9:30 am

2 Replies

1209 Views

Last post by bvayling
Sat 04/13/24 1:22 pm
New Valvestorm 18W TMB doesn’t seem as loud as it should be

Last post by Martinoils « Tue 04/09/24 8:08 pm
Replies: 4
by Martinoils » Tue 04/09/24 11:34 am

4 Replies

696 Views

Last post by Martinoils
Tue 04/09/24 8:08 pm
18W JCM800, chasing perfect tone

Last post by Bieworm « Mon 04/08/24 12:10 pm
Replies: 1
by MarcinD » Thu 04/04/24 11:26 am

1 Replies

697 Views

Last post by Bieworm
Mon 04/08/24 12:10 pm
correct PT for a 18 watter

Last post by JMPGuitars « Tue 03/26/24 1:34 pm
Replies: 15
by Davidscott » Sat 09/09/23 11:22 am

15 Replies

5412 Views

Last post by JMPGuitars
Tue 03/26/24 1:34 pm
Eliminating Tremolo Thumping in Marshall 18 Clone

Last post by marty1776 « Sat 03/23/24 6:48 pm
Replies: 2
by edwardsjethro » Fri 03/15/24 4:14 am

2 Replies

711 Views

Last post by marty1776
Sat 03/23/24 6:48 pm
Mids in Normal Channel

Last post by JMPGuitars « Sat 03/16/24 9:25 am
Replies: 7
by Hiwatt5 » Sat 03/09/24 2:49 pm

7 Replies

1181 Views

Last post by JMPGuitars
Sat 03/16/24 9:25 am

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