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DIY Transistor Amp Using NVA Boards

Last post by Ant « Tue Jun 14, 2022 4:43 pm
Replies: 290
by Cressy Snr » Sat Mar 24, 2018 12:10 pm
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290 Replies

81377 Views

Last post by Ant
Tue Jun 14, 2022 4:43 pm
Changing a sm op amp.

Last post by Nick « Tue May 10, 2022 6:50 pm
Replies: 37
by Paul Barker » Sun Apr 17, 2022 12:23 pm
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37 Replies

1138 Views

Last post by Nick
Tue May 10, 2022 6:50 pm
Speaker protection

Last post by rowuk « Sun Jan 23, 2022 9:22 pm
Replies: 34
by iansr » Mon Jan 17, 2022 9:20 am
1

2

3
34 Replies

3946 Views

Last post by rowuk
Sun Jan 23, 2022 9:22 pm
even more lateral fets

Last post by iansr « Fri Jan 21, 2022 10:26 pm
Replies: 13
by ed » Sat Jun 16, 2018 12:10 pm

13 Replies

12782 Views

Last post by iansr
Fri Jan 21, 2022 10:26 pm
Op-amp operating voltages - a question

Last post by jack « Sun Nov 21, 2021 3:13 pm
Replies: 1
by Thermionic Idler » Mon Nov 15, 2021 11:11 am

1 Replies

1160 Views

Last post by jack
Sun Nov 21, 2021 3:13 pm
DIY Build of Douglas Self's Trimodal power amp

Last post by Tony Moore « Fri Oct 01, 2021 1:50 pm
Replies: 20
by Tony Moore » Sun Sep 12, 2021 10:11 am
1

2
20 Replies

4605 Views

Last post by Tony Moore
Fri Oct 01, 2021 1:50 pm
Quad 405-2 circuit query

Last post by jack « Sun Jun 27, 2021 11:26 am
Replies: 7
by Snorbans » Sat Jun 19, 2021 7:01 pm

7 Replies

2984 Views

Last post by jack
Sun Jun 27, 2021 11:26 am
more jfet info

Last post by JamesD « Thu Apr 15, 2021 11:38 am
Replies: 1
by ed » Thu Apr 15, 2021 9:52 am

1 Replies

1955 Views

Last post by JamesD
Thu Apr 15, 2021 11:38 am
Zeus amplifier

Last post by Max N « Fri Aug 28, 2020 7:00 pm

by Max N » Fri Aug 28, 2020 7:00 pm

0 Replies

2387 Views

Last post by Max N
Fri Aug 28, 2020 7:00 pm
Cheap lc bridge

Last post by Mike H « Fri Aug 21, 2020 3:53 pm
Replies: 7
by Paul Barker » Tue Aug 11, 2020 5:59 pm

7 Replies

3428 Views

Last post by Mike H
Fri Aug 21, 2020 3:53 pm
Exicon's Lateral MOSFETs

Last post by IslandPink « Sun Jul 19, 2020 12:43 pm
Replies: 8
by pre65 » Wed Jul 15, 2020 6:48 pm

8 Replies

4182 Views

Last post by IslandPink
Sun Jul 19, 2020 12:43 pm
MoFo

Last post by pre65 « Sun Jun 21, 2020 12:13 am
Replies: 55
by little eddy » Wed Jul 18, 2018 10:28 pm
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55 Replies

36134 Views

Last post by pre65
Sun Jun 21, 2020 12:13 am
FET and mosfet: reading numbers.

Last post by Nick « Sat May 16, 2020 2:37 pm
Replies: 17
by Paul Barker » Tue May 12, 2020 7:38 pm
1

2
17 Replies

6875 Views

Last post by Nick
Sat May 16, 2020 2:37 pm
N JFET characteristics

Last post by Paul Barker « Mon May 04, 2020 9:49 am
Replies: 9
by Paul Barker » Sun May 03, 2020 6:14 pm

9 Replies

4245 Views

Last post by Paul Barker
Mon May 04, 2020 9:49 am
One4Audio 10W SECA amp.

Last post by IslandPink « Fri May 01, 2020 1:23 pm
Replies: 3
by pre65 » Thu Apr 30, 2020 12:41 pm

3 Replies

2356 Views

Last post by IslandPink
Fri May 01, 2020 1:23 pm
Soup can capacitors, any issues

Last post by Daniel Quinn « Tue Mar 17, 2020 3:44 pm
Replies: 2
by Daniel Quinn » Tue Mar 17, 2020 3:22 pm

2 Replies

3327 Views

Last post by Daniel Quinn
Tue Mar 17, 2020 3:44 pm
Checking capacitors

Last post by Paul Barker « Mon Feb 17, 2020 4:20 pm
Replies: 10
by Max N » Fri Feb 14, 2020 3:07 pm

10 Replies

6836 Views

Last post by Paul Barker
Mon Feb 17, 2020 4:20 pm
Purifi 1ET400A

Last post by vinylnvalves « Wed Jul 17, 2019 7:44 pm

by vinylnvalves » Wed Jul 17, 2019 7:44 pm

0 Replies

6177 Views

Last post by vinylnvalves
Wed Jul 17, 2019 7:44 pm
more SITs

Last post by Mike H « Thu Jul 04, 2019 10:33 pm
Replies: 9
by ed » Thu Jan 24, 2019 10:53 am

9 Replies

7521 Views

Last post by Mike H
Thu Jul 04, 2019 10:33 pm
Hypex UcD180 modules

Last post by DSJR « Tue Apr 09, 2019 10:13 pm
Replies: 1
by pre65 » Tue Apr 09, 2019 12:50 pm

1 Replies

3218 Views

Last post by DSJR
Tue Apr 09, 2019 10:13 pm
Pass f5

Last post by Ant « Thu Feb 21, 2019 11:57 pm
Replies: 19
by cressy » Wed Jan 25, 2017 8:51 pm
1

2
19 Replies

14165 Views

Last post by Ant
Thu Feb 21, 2019 11:57 pm
more lateral fets

Last post by Cressy Snr « Fri Jul 27, 2018 5:51 pm
Replies: 12
by ed » Sat Jun 09, 2018 3:35 pm

12 Replies

9296 Views

Last post by Cressy Snr
Fri Jul 27, 2018 5:51 pm
Slagle AVC, needs a check up.

Last post by JohnG « Tue Jul 10, 2018 8:36 pm
Replies: 4
by JohnG » Thu Jul 05, 2018 10:59 am

4 Replies

4557 Views

Last post by JohnG
Tue Jul 10, 2018 8:36 pm
Longdog Audio PH-1 and HA-1 Review

Last post by DSJR « Mon Jun 25, 2018 12:48 pm
Replies: 3
by Greg » Sun Jun 24, 2018 3:57 pm

3 Replies

4980 Views

Last post by DSJR
Mon Jun 25, 2018 12:48 pm
P6 AMP REVIEW

Last post by IslandPink « Sun Jun 24, 2018 9:09 pm
Replies: 23
by mainscablesrus » Thu Nov 16, 2017 10:26 pm
1

2
23 Replies

17087 Views

Last post by IslandPink
Sun Jun 24, 2018 9:09 pm
Maplin Mixer Stages

Last post by colin.hepburn « Tue May 01, 2018 10:51 pm
Replies: 9
by colin.hepburn » Fri May 27, 2011 8:44 pm

9 Replies

12656 Views

Last post by colin.hepburn
Tue May 01, 2018 10:51 pm
Slagle Autoformer

Last post by IslandPink « Tue Apr 17, 2018 4:22 pm
Replies: 7
by JohnG » Thu Mar 29, 2018 10:06 am

7 Replies

6679 Views

Last post by IslandPink
Tue Apr 17, 2018 4:22 pm
FOverture5

Last post by little eddy « Sun Apr 08, 2018 1:44 pm
Replies: 35
by little eddy » Wed Feb 28, 2018 12:29 am
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35 Replies

19215 Views

Last post by little eddy
Sun Apr 08, 2018 1:44 pm
Transistor books for beginners.

Last post by Mike H « Wed Mar 21, 2018 11:08 pm
Replies: 7
by Cressy Snr » Wed Mar 21, 2018 7:10 pm

7 Replies

5856 Views

Last post by Mike H
Wed Mar 21, 2018 11:08 pm
Is this Info any use

Last post by JohnG « Sun Mar 11, 2018 9:28 am

by JohnG » Sun Mar 11, 2018 9:28 am

0 Replies

3965 Views

Last post by JohnG
Sun Mar 11, 2018 9:28 am
bjt output characteristics

Last post by ed « Wed Feb 28, 2018 5:10 pm

by ed » Wed Feb 28, 2018 5:10 pm

0 Replies

3562 Views

Last post by ed
Wed Feb 28, 2018 5:10 pm
Discrete Op Amps used in a Phonostage

Last post by jack « Tue Feb 06, 2018 12:13 am
Replies: 5
by JohnG » Sun Jan 21, 2018 8:57 pm

5 Replies

5373 Views

Last post by jack
Tue Feb 06, 2018 12:13 am
Linear Power Supply

Last post by Nick « Tue Jan 30, 2018 10:21 pm
Replies: 3
by JohnG » Tue Jan 30, 2018 8:11 pm

3 Replies

3820 Views

Last post by Nick
Tue Jan 30, 2018 10:21 pm
Thermal transfer and shimming adhesive

Last post by ed « Fri Jan 12, 2018 8:19 pm
Replies: 7
by Dr Bunsen Honeydew » Fri Jan 12, 2018 11:13 am

7 Replies

8032 Views

Last post by ed
Fri Jan 12, 2018 8:19 pm
Clones PA1 Phonostage

Last post by JohnG « Thu Dec 28, 2017 6:58 am
Replies: 6
by JohnG » Wed Dec 13, 2017 7:57 am

6 Replies

5748 Views

Last post by JohnG
Thu Dec 28, 2017 6:58 am
dc offset

Last post by Nick « Tue Dec 12, 2017 8:33 pm
Replies: 3
by ed » Tue Dec 12, 2017 6:23 pm

3 Replies

3483 Views

Last post by Nick
Tue Dec 12, 2017 8:33 pm
why would changing transformers...

Last post by IslandPink « Sat Sep 23, 2017 6:20 pm
Replies: 24
by karatestu » Tue Jun 06, 2017 7:48 pm
1

2
24 Replies

16906 Views

Last post by IslandPink
Sat Sep 23, 2017 6:20 pm
Mosfet mumblings.

Last post by mainscablesrus « Mon Apr 10, 2017 7:38 pm
Replies: 91
by pre65 » Tue Jun 21, 2016 1:35 pm
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91 Replies

48796 Views

Last post by mainscablesrus
Mon Apr 10, 2017 7:38 pm
Electronic filter.

Last post by Mike H « Sun Mar 19, 2017 12:42 pm
Replies: 10
by pre65 » Thu Mar 16, 2017 8:55 am

10 Replies

8092 Views

Last post by Mike H
Sun Mar 19, 2017 12:42 pm
Two box power amps

Last post by karatestu « Fri Mar 10, 2017 8:39 am
Replies: 12
by karatestu » Sat Mar 04, 2017 5:19 pm

12 Replies

9132 Views

Last post by karatestu
Fri Mar 10, 2017 8:39 am
Dunn - Wonfor.

Last post by Thermionic Idler « Tue Mar 07, 2017 11:58 pm
Replies: 3
by Mudshark » Sun Feb 05, 2017 9:30 pm

3 Replies

5217 Views

Last post by Thermionic Idler
Tue Mar 07, 2017 11:58 pm
Op amps review.

Last post by peperoni « Sat Jan 28, 2017 10:23 am
Replies: 9
by al newall » Wed Feb 20, 2008 8:17 pm

9 Replies

24991 Views

Last post by peperoni
Sat Jan 28, 2017 10:23 am
Sugden A21 series 1

Last post by Mike H « Sat Mar 19, 2016 4:27 pm
Replies: 33
by richardcooper2k » Fri Feb 19, 2016 4:04 pm
1

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3
33 Replies

28573 Views

Last post by Mike H
Sat Mar 19, 2016 4:27 pm
Class A sand amp.

Last post by pre65 « Mon Sep 28, 2015 5:21 pm
Replies: 17
by pre65 » Mon May 11, 2015 2:20 pm
1

2
17 Replies

14294 Views

Last post by pre65
Mon Sep 28, 2015 5:21 pm
High Power, High Fidelity Lateral MOSFET Power Amplifier

Last post by jack « Thu Jul 30, 2015 4:45 pm
Replies: 3
by pre65 » Mon Nov 17, 2014 2:44 pm

3 Replies

5891 Views

Last post by jack
Thu Jul 30, 2015 4:45 pm
The Brief History of my life with SECA designs

Last post by Colin Wonfor « Mon Jul 27, 2015 6:29 pm
Replies: 2
by Colin Wonfor » Mon Jul 27, 2015 5:33 pm

2 Replies

4514 Views

Last post by Colin Wonfor
Mon Jul 27, 2015 6:29 pm
JLH Class A

Last post by pre65 « Sun May 03, 2015 1:19 pm
Replies: 3
by Ray P » Thu Feb 20, 2014 8:14 pm

3 Replies

7676 Views

Last post by pre65
Sun May 03, 2015 1:19 pm
TPA3116

Last post by steve s « Fri Jan 09, 2015 12:08 am
Replies: 44
by pre65 » Sun Jun 15, 2014 11:25 am
1

2

3
44 Replies

27518 Views

Last post by steve s
Fri Jan 09, 2015 12:08 am
Jungson JA88-D(09) schematic.

Last post by awkwardbydesign « Tue Dec 16, 2014 4:15 pm

by awkwardbydesign » Tue Dec 16, 2014 4:15 pm

0 Replies

3333 Views

Last post by awkwardbydesign
Tue Dec 16, 2014 4:15 pm
Power Supply Caps

Last post by Ali Tait « Sun Nov 23, 2014 4:54 pm
Replies: 5
by Ali Tait » Sun Nov 23, 2014 3:33 pm

5 Replies

5634 Views

Last post by Ali Tait
Sun Nov 23, 2014 4:54 pm

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