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JVM ForumAll about Marshall's JVM Series |
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JVM ForumAll about Marshall's JVM Series |
| It is currently Fri Sep 10, 2010 1:07 am |
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All times are UTC - 5 hours [ DST ] |
Moderators: Andy, Mike, wolfjam, Lurchhammer
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| Topics | Author | Replies | Views | Last post | |||
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| Announcements | |||||||
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How to join the forum / signup | 8 |
1246 |
Tue Feb 24, 2009 4:59 pm |
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| Topics | |||||||
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Schematics | 0 |
37 |
Sat Sep 04, 2010 4:18 pm |
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THE JVM Trouble Shooting Guide | 21 |
1197 |
Sat Aug 07, 2010 6:54 am |
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Pulling 2 of the power tubes / drop to 50w | 41 |
717 |
Thu Aug 05, 2010 12:46 pm |
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JVM Tube roles | 19 |
2227 |
Mon Jul 05, 2010 1:40 am |
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 How to bias the JVM
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108 |
9912 |
Tue Jun 01, 2010 9:25 pm |
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Replacement Footswitch Switches | 3 |
1060 |
Wed Dec 02, 2009 3:14 pm |
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Reset Head to factory Settings | 11 |
650 |
Fri Oct 23, 2009 1:05 pm |
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Fuses JVM 410
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10 |
1536 |
Tue Aug 25, 2009 9:33 am |
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Footswitch problems | 6 |
217 |
Thu Sep 09, 2010 7:03 pm |
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Santail ? about OD1 | 14 |
489 |
Tue Sep 07, 2010 5:00 pm |
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new power tubes - crackling continues unchanged | 1 |
19 |
Sat Sep 04, 2010 6:09 pm |
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Tubes in the 205h blue haze | 1 |
48 |
Sat Sep 04, 2010 12:16 am |
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Now What? | 1 |
31 |
Thu Sep 02, 2010 3:43 pm |
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If a tube blows at a gig is the JVM 410h rendered useless | 12 |
185 |
Wed Sep 01, 2010 4:27 pm |
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fs3 fs4 fuse replacement question
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18 |
183 |
Wed Sep 01, 2010 3:04 pm |
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Yikes !! -- my plate voltage is 545v, anybody else ?? | 16 |
238 |
Tue Aug 31, 2010 6:35 pm |
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Bill of Material for JVM410C | 6 |
162 |
Mon Aug 30, 2010 8:29 pm |
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Cracklin' popping noise with all volumes at "0" | 22 |
162 |
Sun Aug 29, 2010 7:57 am |
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Bias drops - Is this normal? | 1 |
108 |
Tue Aug 24, 2010 2:22 am |
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Upgrade with Mercury Magnetics OT and choke (with pics)
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93 |
3335 |
Mon Aug 23, 2010 8:01 am |
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crackling noise only when volume is turned up | 2 |
25 |
Sun Aug 22, 2010 1:11 pm |
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Slow channel switching | 7 |
143 |
Wed Aug 18, 2010 6:10 pm |
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Transformer hum | 14 |
140 |
Tue Aug 17, 2010 2:34 pm |
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410h white noise | 4 |
67 |
Tue Aug 17, 2010 1:49 am |
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Pop when switching to clean channel
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20 |
110 |
Tue Aug 17, 2010 12:28 am |
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Red/Black/White nuts for back panel 1/4" input/output jacks | 9 |
68 |
Tue Aug 17, 2010 12:25 am |
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Those with the C83 mod: are you still happy? | 9 |
224 |
Sun Aug 15, 2010 4:22 pm |
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Another volume drop. 12AX7 replacement useless so far... | 14 |
92 |
Thu Aug 12, 2010 6:16 pm |
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Two tubes pulled on 410c good or bad? My new test confirms.. | 6 |
99 |
Sat Aug 07, 2010 7:36 am |
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"Plexi Mod" for JVM205H?
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20 |
290 |
Mon Aug 02, 2010 12:39 am |
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Biasing Questions | 5 |
104 |
Thu Jul 29, 2010 11:02 am |
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FX Loop Volume loss
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16 |
145 |
Tue Jul 27, 2010 4:19 pm |
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jcm800 | 5 |
112 |
Mon Jul 26, 2010 1:26 pm |
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kt88s in jvm
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28 |
373 |
Mon Jul 26, 2010 10:29 am |
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what does a choke do exactly? | 6 |
149 |
Sun Jul 25, 2010 3:32 pm |
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Losing volume? | 1 |
47 |
Fri Jul 23, 2010 1:14 pm |
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Taken JVM410h from UK to USA. Need some power advice!! | 4 |
100 |
Wed Jul 21, 2010 9:54 pm |
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microphonic tube? | 6 |
78 |
Wed Jul 14, 2010 9:45 am |
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Has my power amp tube died? | 5 |
76 |
Wed Jul 14, 2010 5:20 am |
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Re-set footswitch | 4 |
55 |
Tue Jul 13, 2010 1:09 am |
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front control panel removal? | 9 |
107 |
Sun Jul 11, 2010 9:02 pm |
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JVM power cord | 6 |
97 |
Sat Jul 10, 2010 11:08 pm |
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Just had a pop | 9 |
98 |
Fri Jul 09, 2010 4:44 am |
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Channnel led push button information???? | 15 |
116 |
Thu Jul 08, 2010 11:52 pm |
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Footswitch Dead | 5 |
77 |
Thu Jul 08, 2010 8:59 am |
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High-pitch squeal? | 10 |
258 |
Thu Jul 08, 2010 8:55 am |
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JVM410h cosmetic + airflow mods | 8 |
245 |
Tue Jul 06, 2010 6:18 pm |
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How to drain the filter caps? | 6 |
130 |
Wed Jun 30, 2010 10:52 pm |
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Voltage Regulators | 4 |
74 |
Wed Jun 30, 2010 6:27 pm |
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less gain in green modes after servicing the amp | 8 |
120 |
Wed Jun 30, 2010 4:09 pm |
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