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Last post

Ralph Amp - Thoughts?

Last post by Thermionic Idler « Sat Jan 31, 2015 10:39 pm
Replies: 5
by Thermionic Idler » Fri Jan 23, 2015 10:11 pm

5 Replies

5661 Views

Last post by Thermionic Idler
Sat Jan 31, 2015 10:39 pm
Positive Switching Regulators

Last post by Dave the bass « Tue Jan 20, 2015 8:49 am
Replies: 4
by pre65 » Fri Nov 14, 2014 5:33 pm

4 Replies

3268 Views

Last post by Dave the bass
Tue Jan 20, 2015 8:49 am
Computer memory.

Last post by pre65 « Sat Jan 17, 2015 12:35 pm
Replies: 8
by pre65 » Sat Jan 10, 2015 12:23 pm

8 Replies

4234 Views

Last post by pre65
Sat Jan 17, 2015 12:35 pm
PCB pins

Last post by colin.hepburn « Thu Dec 18, 2014 5:23 pm
Replies: 3
by pre65 » Wed Dec 17, 2014 4:16 pm

3 Replies

5171 Views

Last post by colin.hepburn
Thu Dec 18, 2014 5:23 pm
De-soldering tool.

Last post by colin.hepburn « Tue Dec 16, 2014 9:31 pm
Replies: 7
by pre65 » Wed Aug 13, 2014 4:29 pm

7 Replies

8193 Views

Last post by colin.hepburn
Tue Dec 16, 2014 9:31 pm
Low capacitance speaker cable

Last post by Neal « Fri Nov 28, 2014 8:55 pm
Replies: 6
by Greg » Thu Nov 13, 2014 10:19 pm

6 Replies

4571 Views

Last post by Neal
Fri Nov 28, 2014 8:55 pm
Toroidal transformer positioning

Last post by IDM « Thu Nov 27, 2014 7:42 pm
Replies: 5
by IDM » Thu Nov 27, 2014 8:55 am

5 Replies

5134 Views

Last post by IDM
Thu Nov 27, 2014 7:42 pm
Active crossovers.

Last post by rowuk « Sat Nov 15, 2014 12:20 pm
Replies: 12
by pre65 » Thu Nov 13, 2014 1:44 pm

12 Replies

6314 Views

Last post by rowuk
Sat Nov 15, 2014 12:20 pm
Push-Pull Basics.

Last post by pre65 « Thu Nov 13, 2014 7:28 pm
Replies: 41
by Cressy Snr » Sun Jul 20, 2014 10:22 am
1

2

3
41 Replies

17052 Views

Last post by pre65
Thu Nov 13, 2014 7:28 pm
Tansformer and valve spacing

Last post by little eddy « Wed Nov 05, 2014 8:58 pm

by little eddy » Wed Nov 05, 2014 8:58 pm

0 Replies

2037 Views

Last post by little eddy
Wed Nov 05, 2014 8:58 pm
Dual 505-2

Last post by ByersVictory « Mon Oct 27, 2014 2:38 pm

by ByersVictory » Mon Oct 27, 2014 2:38 pm

0 Replies

2429 Views

Last post by ByersVictory
Mon Oct 27, 2014 2:38 pm
Digital interconnects

Last post by The Stratmangler « Sat Sep 27, 2014 10:32 pm
Replies: 1
by pre65 » Sat Sep 27, 2014 10:17 pm

1 Replies

2187 Views

Last post by The Stratmangler
Sat Sep 27, 2014 10:32 pm
Testing a power transistor.

Last post by pre65 « Tue Aug 26, 2014 3:43 pm
Replies: 7
by pre65 » Tue Aug 26, 2014 10:54 am

7 Replies

3222 Views

Last post by pre65
Tue Aug 26, 2014 3:43 pm
Op amp swapping.

Last post by Bizzie « Tue Jul 29, 2014 6:43 am
Replies: 5
by pre65 » Mon Jul 28, 2014 9:33 am

5 Replies

5860 Views

Last post by Bizzie
Tue Jul 29, 2014 6:43 am
SPDIF from SACD

Last post by Alex Kitic « Sat Jul 26, 2014 10:02 pm
Replies: 10
by pre65 » Wed Jul 23, 2014 8:53 am

10 Replies

5233 Views

Last post by Alex Kitic
Sat Jul 26, 2014 10:02 pm
which components contribute most to music quality?

Last post by Dave the bass « Mon Jul 21, 2014 10:30 pm
Replies: 14
by Steptoe » Wed Apr 09, 2014 4:21 am

14 Replies

7734 Views

Last post by Dave the bass
Mon Jul 21, 2014 10:30 pm
Faultfinding.

Last post by rowuk « Mon Jul 21, 2014 4:08 pm
Replies: 3
by pre65 » Wed Apr 30, 2014 11:59 am

3 Replies

3535 Views

Last post by rowuk
Mon Jul 21, 2014 4:08 pm
MC Input Loading

Last post by Alex Kitic « Thu Jun 12, 2014 1:02 pm
Replies: 5
by Ali Tait » Mon Jun 02, 2014 8:11 pm

5 Replies

3814 Views

Last post by Alex Kitic
Thu Jun 12, 2014 1:02 pm
Pre-amp Input Switching

Last post by Mike H « Thu Jun 12, 2014 10:53 am
Replies: 30
by little eddy » Mon Nov 08, 2010 11:38 pm
1

2

3
30 Replies

13811 Views

Last post by Mike H
Thu Jun 12, 2014 10:53 am
Pot on Output Valve of SE Amps?

Last post by Alex Kitic « Wed Jun 04, 2014 6:27 pm
Replies: 11
by David » Mon Jun 02, 2014 1:06 pm

11 Replies

7370 Views

Last post by Alex Kitic
Wed Jun 04, 2014 6:27 pm
transformer advice needed

Last post by pre65 « Mon Jun 02, 2014 5:19 pm
Replies: 8
by Steptoe » Mon Mar 17, 2014 4:07 am

8 Replies

5371 Views

Last post by pre65
Mon Jun 02, 2014 5:19 pm
Valve pin info.

Last post by Paul Barker « Thu May 29, 2014 4:48 pm
Replies: 1
by pre65 » Thu May 29, 2014 4:43 pm

1 Replies

2102 Views

Last post by Paul Barker
Thu May 29, 2014 4:48 pm
Is bigger better?

Last post by Steptoe « Sun May 25, 2014 10:48 am
Replies: 6
by Steptoe » Sat May 24, 2014 10:23 am

6 Replies

4094 Views

Last post by Steptoe
Sun May 25, 2014 10:48 am
H15 connectors

Last post by Paul Barker « Fri May 23, 2014 1:18 pm
Replies: 11
by pre65 » Tue May 20, 2014 5:01 pm

11 Replies

4573 Views

Last post by Paul Barker
Fri May 23, 2014 1:18 pm
Bypassing Signal Coupling Caps

Last post by andrew Ivimey « Thu May 22, 2014 5:29 pm
Replies: 26
by Cressy Snr » Sun May 18, 2014 11:09 am
1

2
26 Replies

12457 Views

Last post by andrew Ivimey
Thu May 22, 2014 5:29 pm
High voltage wire.

Last post by Paul Barker « Wed May 14, 2014 7:53 pm
Replies: 1
by pre65 » Wed May 14, 2014 6:03 pm

1 Replies

2471 Views

Last post by Paul Barker
Wed May 14, 2014 7:53 pm
Resistor composition?

Last post by Dave the bass « Mon May 12, 2014 7:52 pm
Replies: 11
by Dave the bass » Mon May 12, 2014 1:33 pm

11 Replies

5137 Views

Last post by Dave the bass
Mon May 12, 2014 7:52 pm
Triode connected pentode.

Last post by Nick « Tue Apr 15, 2014 5:11 pm
Replies: 5
by pre65 » Mon Apr 14, 2014 1:45 pm

5 Replies

3746 Views

Last post by Nick
Tue Apr 15, 2014 5:11 pm
Input transformers

Last post by Paul Barker « Sun Apr 06, 2014 7:38 am
Replies: 19
by pre65 » Fri Apr 04, 2014 11:18 am
1

2
19 Replies

9578 Views

Last post by Paul Barker
Sun Apr 06, 2014 7:38 am
series heaters

Last post by ed « Tue Apr 01, 2014 8:51 am
Replies: 5
by ed » Mon Mar 31, 2014 10:58 am

5 Replies

3676 Views

Last post by ed
Tue Apr 01, 2014 8:51 am
Basic crossover question

Last post by Greg « Wed Mar 26, 2014 3:01 pm
Replies: 7
by Greg » Tue Mar 25, 2014 9:05 pm

7 Replies

4363 Views

Last post by Greg
Wed Mar 26, 2014 3:01 pm
Mains voltage step down

Last post by Mike H « Wed Mar 12, 2014 10:04 am
Replies: 7
by Neal » Mon Mar 10, 2014 3:11 pm

7 Replies

4321 Views

Last post by Mike H
Wed Mar 12, 2014 10:04 am
6d22s heater referencing question

Last post by Mike H « Wed Mar 05, 2014 11:22 pm
Replies: 14
by thomas » Wed Mar 05, 2014 11:34 am

14 Replies

7000 Views

Last post by Mike H
Wed Mar 05, 2014 11:22 pm
Wire strippers

Last post by Greg « Fri Jan 03, 2014 9:31 pm
Replies: 14
by Greg » Fri Nov 29, 2013 12:44 am

14 Replies

10062 Views

Last post by Greg
Fri Jan 03, 2014 9:31 pm
LED/Diode Cathode Bias fettle-isation!

Last post by thomas « Fri Dec 20, 2013 12:18 am
Replies: 7
by Dave the bass » Thu Dec 19, 2013 6:08 pm

7 Replies

5591 Views

Last post by thomas
Fri Dec 20, 2013 12:18 am
When Self Inductance breaks down?

Last post by Paul Barker « Thu Dec 12, 2013 9:56 pm
Replies: 11
by Dave the bass » Tue Dec 10, 2013 8:28 am

11 Replies

5089 Views

Last post by Paul Barker
Thu Dec 12, 2013 9:56 pm
Shunt Mod Power Supplies

Last post by David « Wed Dec 11, 2013 6:25 pm
Replies: 9
by David » Sat Dec 07, 2013 12:05 pm

9 Replies

5780 Views

Last post by David
Wed Dec 11, 2013 6:25 pm
choked

Last post by IslandPink « Tue Nov 26, 2013 11:15 pm
Replies: 12
by ed » Fri Nov 22, 2013 5:27 pm

12 Replies

3509 Views

Last post by IslandPink
Tue Nov 26, 2013 11:15 pm
How to change 8-ohm adjustable L-PAD to 6-ohm?

Last post by Andrew « Tue Nov 26, 2013 1:31 pm
Replies: 1
by Toppsy » Tue Nov 26, 2013 9:26 am

1 Replies

2191 Views

Last post by Andrew
Tue Nov 26, 2013 1:31 pm
wire

Last post by Greg « Mon Nov 25, 2013 1:16 am
Replies: 6
by kennyk » Sun Nov 24, 2013 12:35 am

6 Replies

5149 Views

Last post by Greg
Mon Nov 25, 2013 1:16 am
power supplies again

Last post by JamesD « Fri Nov 22, 2013 8:34 pm
Replies: 15
by ed » Thu Nov 14, 2013 11:12 am
1

2
15 Replies

7425 Views

Last post by JamesD
Fri Nov 22, 2013 8:34 pm
Humbucker Pots

Last post by David « Sun Oct 27, 2013 11:47 am
Replies: 12
by kennyk » Wed Oct 23, 2013 12:04 am

12 Replies

6730 Views

Last post by David
Sun Oct 27, 2013 11:47 am
more smps

Last post by Cressy Snr « Tue Oct 08, 2013 4:53 pm
Replies: 21
by ed » Fri Aug 23, 2013 2:28 pm
1

2
21 Replies

12843 Views

Last post by Cressy Snr
Tue Oct 08, 2013 4:53 pm
Aikido Question

Last post by David « Wed Oct 02, 2013 1:13 pm
Replies: 2
by David » Tue Oct 01, 2013 7:08 pm

2 Replies

2408 Views

Last post by David
Wed Oct 02, 2013 1:13 pm
fixed bias

Last post by ed « Sun Sep 15, 2013 8:55 pm
Replies: 26
by ed » Fri Sep 13, 2013 4:00 pm
1

2
26 Replies

8570 Views

Last post by ed
Sun Sep 15, 2013 8:55 pm
Sources of hum.

Last post by pre65 « Tue Sep 10, 2013 11:15 pm
Replies: 24
by pre65 » Sun Sep 08, 2013 12:28 pm
1

2
24 Replies

7509 Views

Last post by pre65
Tue Sep 10, 2013 11:15 pm
World designs PIO caps

Last post by Greg « Tue Sep 10, 2013 7:49 pm
Replies: 4
by pre65 » Fri Sep 06, 2013 2:34 pm

4 Replies

3059 Views

Last post by Greg
Tue Sep 10, 2013 7:49 pm
Lab equipment for a complete beginner

Last post by simon « Thu Aug 29, 2013 10:59 pm
Replies: 18
by figlet108 » Sat Aug 24, 2013 12:36 pm
1

2
18 Replies

10959 Views

Last post by simon
Thu Aug 29, 2013 10:59 pm
Output Transformer Laminations.

Last post by pre65 « Mon Aug 26, 2013 4:42 pm
Replies: 6
by Cressy Snr » Mon Aug 26, 2013 1:21 pm

6 Replies

3588 Views

Last post by pre65
Mon Aug 26, 2013 4:42 pm
Grid Leak Resistor Sizing

Last post by simon « Thu Aug 22, 2013 10:49 pm
Replies: 14
by simon » Wed Aug 21, 2013 6:33 pm

14 Replies

7304 Views

Last post by simon
Thu Aug 22, 2013 10:49 pm

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