18watt Technical Discussion

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18watt Technical Discussion

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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

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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
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by JMPGuitars » Tue 05/07/19 7:48 pm

4 Replies

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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

8372 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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Last post by dustin_writes
Wed 08/23/06 1:42 pm

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Tremolo TMB Questions

Last post by JMPGuitars « Sat 04/23/22 5:55 pm
Replies: 16
by JMPGuitars » Wed 05/05/21 6:24 pm
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4386 Views

Last post by JMPGuitars
Sat 04/23/22 5:55 pm
18 watt fizz: please help me diagnose this?

Last post by zaphod_phil « Wed 02/09/22 10:22 pm
Replies: 170
by TomOlsen1 » Thu 01/14/10 4:09 am
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49812 Views

Last post by zaphod_phil
Wed 02/09/22 10:22 pm
Pentode (EF86) pre-amps and combo's?

Last post by DikshaRaut « Thu 10/24/19 4:54 am
Replies: 62
by mark0614 » Fri 11/02/07 9:18 pm
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27588 Views

Last post by DikshaRaut
Thu 10/24/19 4:54 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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41295 Views

Last post by Isaac Stuckey
Sun 01/19/14 11:32 pm
First 18w build - EF86 Lite 2P

Last post by Bieworm « Thu 05/19/22 4:35 pm
Replies: 50
by yello » Thu 04/14/22 4:24 pm
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683 Views

Last post by Bieworm
Thu 05/19/22 4:35 pm
18w lite P2P layout design.

Last post by Ronno25 « Tue 05/17/22 2:51 pm
Replies: 2
by Ronno25 » Mon 05/16/22 11:40 am

2 Replies

76 Views

Last post by Ronno25
Tue 05/17/22 2:51 pm
Dodgy pin

Last post by JMPGuitars « Tue 05/17/22 7:36 am
Replies: 3
by geoff 1965 » Mon 05/16/22 5:53 pm

3 Replies

75 Views

Last post by JMPGuitars
Tue 05/17/22 7:36 am
Lunchbox ECL86

Last post by geoff 1965 « Mon 05/16/22 2:57 pm
Replies: 109
by geoff 1965 » Wed 05/05/21 2:42 pm
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10193 Views

Last post by geoff 1965
Mon 05/16/22 2:57 pm
SIII build from scratch

Last post by JMPGuitars « Fri 05/13/22 6:18 am
Replies: 46
by AussieTim » Tue 08/06/19 6:52 am
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8980 Views

Last post by JMPGuitars
Fri 05/13/22 6:18 am
First build, Ceriatone 18w TMB EF86, no output

Last post by Unit_1 « Tue 05/10/22 10:46 am
Replies: 16
by ievans » Tue 05/03/22 4:12 pm
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236 Views

Last post by Unit_1
Tue 05/10/22 10:46 am
Josh's Tremolo TMB Xtra Reverb

Last post by JMPGuitars « Wed 05/04/22 10:37 am
Replies: 44
by JMPGuitars » Tue 03/08/22 11:23 am
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737 Views

Last post by JMPGuitars
Wed 05/04/22 10:37 am
Mojotone Trem problem

Last post by lavrgs « Mon 04/25/22 10:38 am
Replies: 9
by rockon1 » Tue 03/01/22 8:01 am

9 Replies

213 Views

Last post by lavrgs
Mon 04/25/22 10:38 am
Next Build

Last post by JMPGuitars « Mon 04/25/22 6:42 am
Replies: 57
by lavrgs » Sun 08/16/20 2:19 pm
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7129 Views

Last post by JMPGuitars
Mon 04/25/22 6:42 am
Pilot lights 120v vs 6.3v

Last post by jimibiscuits « Sun 04/24/22 12:19 pm
Replies: 3
by jimibiscuits » Sun 04/24/22 11:04 am

3 Replies

62 Views

Last post by jimibiscuits
Sun 04/24/22 12:19 pm
Brownnote Dirty 18 layout?

Last post by zaphod_phil « Mon 04/11/22 10:45 am
Replies: 8
by lexluthier72 » Sat 03/12/22 12:34 pm

8 Replies

336 Views

Last post by zaphod_phil
Mon 04/11/22 10:45 am
My first build Jim 5watt V2.0

Last post by Tomten « Wed 04/06/22 6:38 pm
Replies: 72
by Tomten » Fri 03/04/22 5:32 am
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1095 Views

Last post by Tomten
Wed 04/06/22 6:38 pm
D4910 transformer / looking for 1974x owners

Last post by Bieworm « Tue 04/05/22 10:48 am
Replies: 2
by gi097 » Tue 04/05/22 6:28 am

2 Replies

95 Views

Last post by Bieworm
Tue 04/05/22 10:48 am
Options for 1974x Replacement Transformers

Last post by zaphod_phil « Sat 03/26/22 6:49 pm
Replies: 13
by junior marbles » Mon 11/08/21 2:19 am

13 Replies

662 Views

Last post by zaphod_phil
Sat 03/26/22 6:49 pm
Choke sag simulation

Last post by TriodeLuvr « Thu 03/24/22 12:51 am
Replies: 8
by geoff 1965 » Fri 02/18/22 11:43 am

8 Replies

259 Views

Last post by TriodeLuvr
Thu 03/24/22 12:51 am
TMB build with 1974x Dagnall transformers

Last post by gi097 « Tue 03/15/22 1:02 pm
Replies: 4
by gi097 » Mon 03/07/22 7:40 am

4 Replies

143 Views

Last post by gi097
Tue 03/15/22 1:02 pm
Tremolo TB will it work?

Last post by zaphod_phil « Tue 03/15/22 1:00 pm
Replies: 7
by rexindigo » Thu 03/10/22 7:59 am

7 Replies

170 Views

Last post by zaphod_phil
Tue 03/15/22 1:00 pm
Epiphone Valve Standard to 18W TMB Conversion

Last post by CudBucket « Thu 03/10/22 11:44 am
Replies: 86
by bigjoe » Tue 04/03/07 12:00 am
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86 Replies

7213 Views

Last post by CudBucket
Thu 03/10/22 11:44 am
single tremolo channel version

Last post by rexindigo « Sat 03/05/22 10:33 am
Replies: 14
by rexindigo » Thu 03/03/22 4:32 am

14 Replies

257 Views

Last post by rexindigo
Sat 03/05/22 10:33 am
18 watt TMB squeal & hum

Last post by rockon1 « Wed 03/02/22 8:20 am
Replies: 71
by jimgerrr » Fri 12/20/19 6:51 pm
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7114 Views

Last post by rockon1
Wed 03/02/22 8:20 am
My first amp build works!!! Trinity amps Thor kit 18w JCM 800

Last post by Snoopzilla « Sat 02/26/22 8:43 pm
Replies: 25
by Snoopzilla » Sun 02/13/22 2:26 pm
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25 Replies

718 Views

Last post by Snoopzilla
Sat 02/26/22 8:43 pm
18W Tremolo TMB Xtra Gain build

Last post by JMPGuitars « Fri 02/25/22 10:19 am
Replies: 25
by Bieworm » Tue 02/08/22 11:43 am
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25 Replies

603 Views

Last post by JMPGuitars
Fri 02/25/22 10:19 am
18 watt Tremolo TMB POI

Last post by zaphod_phil « Thu 02/10/22 7:05 pm
Replies: 23
by Bieworm » Tue 01/25/22 2:07 am
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23 Replies

658 Views

Last post by zaphod_phil
Thu 02/10/22 7:05 pm
Tremolo Noise in Normal Channel

Last post by Daviedawg « Mon 02/07/22 3:16 am
Replies: 2
by organicsounds » Sun 02/06/22 1:41 pm

2 Replies

119 Views

Last post by Daviedawg
Mon 02/07/22 3:16 am
Tremolo footswitch jack wiring

Last post by Bieworm « Sat 02/05/22 5:40 pm
Replies: 1
by PharmRock » Sat 02/05/22 9:25 am

1 Replies

88 Views

Last post by Bieworm
Sat 02/05/22 5:40 pm
Weird PI Voltages

Last post by cuffers65240 « Thu 02/03/22 5:15 pm
Replies: 4
by cuffers65240 » Thu 02/03/22 11:33 am

4 Replies

117 Views

Last post by cuffers65240
Thu 02/03/22 5:15 pm
Triad R-115A: Good enough?

Last post by kenzen « Fri 01/28/22 4:37 pm
Replies: 4
by kenzen » Fri 01/28/22 1:51 pm

4 Replies

171 Views

Last post by kenzen
Fri 01/28/22 4:37 pm
Thordarson T-13S41 OT: Data Sheet?

Last post by kenzen « Fri 01/28/22 2:02 pm

by kenzen » Fri 01/28/22 2:02 pm

0 Replies

58 Views

Last post by kenzen
Fri 01/28/22 2:02 pm
AC heaters done right….how to get it done

Last post by TriodeLuvr « Sat 01/22/22 1:29 am
Replies: 15
by Doxie man » Sat 08/28/21 9:01 pm
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3528 Views

Last post by TriodeLuvr
Sat 01/22/22 1:29 am
Transformer orientation

Last post by ViperDoc « Tue 01/18/22 8:46 pm
Replies: 6
by petedub » Mon 01/17/22 5:33 pm

6 Replies

184 Views

Last post by ViperDoc
Tue 01/18/22 8:46 pm
Newer EF86 Variants

Last post by JMPGuitars « Mon 01/17/22 1:00 pm
Replies: 8
by JMPGuitars » Fri 01/14/22 7:45 pm

8 Replies

286 Views

Last post by JMPGuitars
Mon 01/17/22 1:00 pm
Tremolo TMB wonderings...

Last post by Bieworm « Sun 01/16/22 5:44 am
Replies: 9
by Bieworm » Wed 01/05/22 2:46 am

9 Replies

245 Views

Last post by Bieworm
Sun 01/16/22 5:44 am
More ao-35 IIb talk

Last post by Patrick620 « Wed 01/12/22 8:07 pm

by Patrick620 » Wed 01/12/22 8:07 pm

0 Replies

104 Views

Last post by Patrick620
Wed 01/12/22 8:07 pm
Modulus 18watt lite

Last post by JimbpGaff « Wed 01/12/22 2:17 am
Replies: 8
by Bionicrodent » Fri 01/07/22 9:13 pm

8 Replies

324 Views

Last post by JimbpGaff
Wed 01/12/22 2:17 am
5Y3 vs EZ81 in Lite iib

Last post by zaphod_phil « Sat 01/08/22 12:35 pm
Replies: 13
by ncusack » Fri 03/26/10 2:17 pm

13 Replies

1581 Views

Last post by zaphod_phil
Sat 01/08/22 12:35 pm
CUT CONTROL ON 18 WATT?

Last post by ewizard « Fri 12/31/21 9:14 pm
Replies: 12
by ViperDoc » Tue 11/16/21 3:20 pm

12 Replies

648 Views

Last post by ewizard
Fri 12/31/21 9:14 pm
Loud machine gun noise....

Last post by Bieworm « Fri 12/31/21 5:00 am
Replies: 28
by jdubzamplification » Sun 12/05/21 9:52 pm
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28 Replies

811 Views

Last post by Bieworm
Fri 12/31/21 5:00 am
Bias Resistor Increase = lower gain?

Last post by zaphod_phil « Tue 12/21/21 8:05 pm
Replies: 22
by junior marbles » Wed 12/01/21 3:09 am
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22 Replies

797 Views

Last post by zaphod_phil
Tue 12/21/21 8:05 pm
OT set to 16Ω vs. 4Ω: Difference in volume?

Last post by junior marbles « Wed 12/15/21 5:20 pm
Replies: 9
by junior marbles » Tue 12/14/21 12:56 pm

9 Replies

334 Views

Last post by junior marbles
Wed 12/15/21 5:20 pm
Installed a Weber Mini Mass in a classic 18W combo

Last post by zaphod_phil « Thu 12/09/21 12:26 pm
Replies: 4
by bvayling » Tue 12/07/21 9:56 am

4 Replies

300 Views

Last post by zaphod_phil
Thu 12/09/21 12:26 pm
It has been a while AO-35 Lite IIb

Last post by bvayling « Tue 12/07/21 9:24 am
Replies: 4
by Patrick620 » Sat 11/20/21 7:22 pm

4 Replies

279 Views

Last post by bvayling
Tue 12/07/21 9:24 am
Circuit designers - cathode follower, or plate fed tone stack?

Last post by Bieworm « Mon 12/06/21 2:42 am
Replies: 17
by cstenger5 » Thu 09/23/21 7:23 pm
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17 Replies

883 Views

Last post by Bieworm
Mon 12/06/21 2:42 am
Phase reversal of ONE of the two inputs

Last post by Bieworm « Mon 12/06/21 2:19 am
Replies: 7
by junior marbles » Sat 12/04/21 3:48 am

7 Replies

327 Views

Last post by Bieworm
Mon 12/06/21 2:19 am
18w cascade layout drawing please look

Last post by NickF « Mon 11/29/21 7:01 pm
Replies: 3
by pryde » Mon 04/27/15 11:05 am

3 Replies

1590 Views

Last post by NickF
Mon 11/29/21 7:01 pm
Josh's 18W Tremolo TMB Builds

Last post by JMPGuitars « Sun 11/21/21 8:43 pm
Replies: 360
by JMPGuitars » Sun 07/26/20 6:32 pm
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360 Replies

27192 Views

Last post by JMPGuitars
Sun 11/21/21 8:43 pm
Help 18 Watt Trem build

Last post by JMPGuitars « Sat 11/20/21 11:24 pm
Replies: 1
by sdlogan9 » Sat 11/20/21 10:12 am

1 Replies

177 Views

Last post by JMPGuitars
Sat 11/20/21 11:24 pm

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