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Raspberry Pi in same case as DAC

Last post by Thermionic Idler « Fri May 20, 2022 9:30 am
Replies: 2
by Thermionic Idler » Sun May 15, 2022 10:15 am

2 Replies

232 Views

Last post by Thermionic Idler
Fri May 20, 2022 9:30 am
Parallel Preamp Outputs

Last post by Ray P « Sun Apr 24, 2022 7:23 pm
Replies: 2
by Ray P » Sun Apr 24, 2022 3:06 pm

2 Replies

323 Views

Last post by Ray P
Sun Apr 24, 2022 7:23 pm
Just need to check

Last post by Ray P « Mon Mar 14, 2022 12:13 pm
Replies: 2
by Ray P » Mon Mar 14, 2022 7:42 am

2 Replies

695 Views

Last post by Ray P
Mon Mar 14, 2022 12:13 pm
PP output transformer

Last post by andrew Ivimey « Sun Mar 13, 2022 1:17 pm
Replies: 9
by andrew Ivimey » Sat Mar 12, 2022 11:53 am

9 Replies

455 Views

Last post by andrew Ivimey
Sun Mar 13, 2022 1:17 pm
Kicad advice

Last post by Max N « Sun Mar 06, 2022 5:17 pm
Replies: 7
by Max N » Sat Mar 05, 2022 6:28 pm

7 Replies

483 Views

Last post by Max N
Sun Mar 06, 2022 5:17 pm
Dedicated mains for audio

Last post by Nick « Sun Mar 06, 2022 12:02 pm
Replies: 12
by chris » Fri Mar 04, 2022 10:12 am

12 Replies

657 Views

Last post by Nick
Sun Mar 06, 2022 12:02 pm
RCD question

Last post by Paul Barker « Tue Feb 22, 2022 8:16 am
Replies: 17
by Thermionic Idler » Sat Feb 19, 2022 3:18 pm
1

2
17 Replies

1091 Views

Last post by Paul Barker
Tue Feb 22, 2022 8:16 am
Valve Amp Power Supplies

Last post by Nick « Tue Jan 25, 2022 4:14 pm
Replies: 42
by Cressy Snr » Sun Jan 23, 2022 5:24 pm
1

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3
42 Replies

2783 Views

Last post by Nick
Tue Jan 25, 2022 4:14 pm
Two-chassis phono stage - grounding question

Last post by Thermionic Idler « Fri Jan 21, 2022 11:01 am
Replies: 12
by Thermionic Idler » Wed Jan 12, 2022 6:27 pm

12 Replies

1168 Views

Last post by Thermionic Idler
Fri Jan 21, 2022 11:01 am
Toroidal transformer interference

Last post by Nick « Fri Dec 31, 2021 6:49 pm
Replies: 1
by Thermionic Idler » Fri Dec 31, 2021 5:34 pm

1 Replies

502 Views

Last post by Nick
Fri Dec 31, 2021 6:49 pm
Budget DSP Options

Last post by rowuk « Thu Dec 16, 2021 7:03 pm
Replies: 11
by Ray P » Sun Dec 12, 2021 10:36 am

11 Replies

1405 Views

Last post by rowuk
Thu Dec 16, 2021 7:03 pm
Voltage regulation

Last post by Nick « Sun Dec 12, 2021 9:40 am
Replies: 16
by Daniel Quinn » Sat Dec 11, 2021 11:24 am
1

2
16 Replies

1237 Views

Last post by Nick
Sun Dec 12, 2021 9:40 am
Voltage question

Last post by pre65 « Fri Dec 10, 2021 7:07 pm
Replies: 17
by Daniel Quinn » Fri Dec 10, 2021 2:11 pm
1

2
17 Replies

1206 Views

Last post by pre65
Fri Dec 10, 2021 7:07 pm
TKD pots

Last post by Paul Barker « Sun Dec 05, 2021 7:36 am
Replies: 16
by Thermionic Idler » Fri Dec 03, 2021 6:16 pm
1

2
16 Replies

1644 Views

Last post by Paul Barker
Sun Dec 05, 2021 7:36 am
what pcb design software

Last post by malarkey1976 « Tue Sep 21, 2021 4:47 pm
Replies: 9
by ed » Thu Sep 24, 2020 1:03 pm

9 Replies

5429 Views

Last post by malarkey1976
Tue Sep 21, 2021 4:47 pm
PSUD improvements

Last post by IslandPink « Thu Aug 26, 2021 6:18 pm

by IslandPink » Thu Aug 26, 2021 6:18 pm

0 Replies

940 Views

Last post by IslandPink
Thu Aug 26, 2021 6:18 pm
How can I tell if valves need replacing

Last post by steve s « Sun Aug 15, 2021 11:16 pm
Replies: 8
by bostod » Sun Jan 10, 2021 1:43 pm

8 Replies

2704 Views

Last post by steve s
Sun Aug 15, 2021 11:16 pm
What is SPICE

Last post by Max N « Thu Jun 24, 2021 7:22 pm
Replies: 213
by pre65 » Mon Dec 03, 2007 1:22 pm
1

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11

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15
213 Replies

100775 Views

Last post by Max N
Thu Jun 24, 2021 7:22 pm
CCS adjustment question

Last post by Thermionic Idler « Mon Jun 21, 2021 5:45 pm
Replies: 2
by Thermionic Idler » Mon Jun 21, 2021 1:34 pm

2 Replies

931 Views

Last post by Thermionic Idler
Mon Jun 21, 2021 5:45 pm
Restacking An Output Transformer.

Last post by Cressy Snr « Sat May 22, 2021 12:25 pm
Replies: 60
by Cressy Snr » Tue May 11, 2021 8:40 pm
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4

5
60 Replies

11241 Views

Last post by Cressy Snr
Sat May 22, 2021 12:25 pm
Zout Maths - is it me?

Last post by Ray P « Thu Apr 15, 2021 7:20 pm
Replies: 3
by Ray P » Thu Apr 15, 2021 7:52 am

3 Replies

1716 Views

Last post by Ray P
Thu Apr 15, 2021 7:20 pm
Simple Active Low Pass Filter/Buffer

Last post by Ray P « Fri Mar 05, 2021 9:23 pm
Replies: 6
by Ray P » Thu Mar 04, 2021 10:00 pm

6 Replies

2751 Views

Last post by Ray P
Fri Mar 05, 2021 9:23 pm
Grid stopper resistors

Last post by Nick « Mon Mar 01, 2021 4:58 pm
Replies: 8
by Thermionic Idler » Sun Feb 28, 2021 6:54 pm

8 Replies

2159 Views

Last post by Nick
Mon Mar 01, 2021 4:58 pm
More buffers

Last post by Nick « Sat Feb 06, 2021 2:46 pm
Replies: 5
by Max N » Fri Feb 05, 2021 6:48 pm

5 Replies

2046 Views

Last post by Nick
Sat Feb 06, 2021 2:46 pm
Stereo to mono

Last post by Cressy Snr « Wed Feb 03, 2021 4:55 pm
Replies: 18
by karatestu » Tue Sep 08, 2020 10:04 am
1

2
18 Replies

6785 Views

Last post by Cressy Snr
Wed Feb 03, 2021 4:55 pm
Input transformer query

Last post by izzy wizzy « Tue Jan 19, 2021 8:10 am
Replies: 22
by Thermionic Idler » Sat Jan 16, 2021 7:41 pm
1

2
22 Replies

6230 Views

Last post by izzy wizzy
Tue Jan 19, 2021 8:10 am
Anode to Anode cap coupling?

Last post by ed « Sun Jan 17, 2021 3:30 pm
Replies: 17
by Dave the bass » Mon Jan 11, 2021 6:35 pm
1

2
17 Replies

5210 Views

Last post by ed
Sun Jan 17, 2021 3:30 pm
A new valve amplifier

Last post by Ray P « Fri Jan 08, 2021 9:28 pm
Replies: 3
by ed » Sat Jan 02, 2021 5:12 pm

3 Replies

1706 Views

Last post by Ray P
Fri Jan 08, 2021 9:28 pm
Suggestion for CCS at 140mA

Last post by ed « Tue Nov 24, 2020 6:45 am
Replies: 5
by Max N » Mon Nov 23, 2020 8:56 pm

5 Replies

3018 Views

Last post by ed
Tue Nov 24, 2020 6:45 am
dual purpose power supply

Last post by Mike H « Sun Nov 22, 2020 5:24 pm
Replies: 1
by ed » Sun Nov 22, 2020 11:30 am

1 Replies

1177 Views

Last post by Mike H
Sun Nov 22, 2020 5:24 pm
Measuring transformers

Last post by Max N « Sat Nov 21, 2020 9:07 am
Replies: 28
by Max N » Sat Jul 27, 2019 2:33 pm
1

2
28 Replies

16747 Views

Last post by Max N
Sat Nov 21, 2020 9:07 am
harmonic distortion

Last post by JamesD « Mon Nov 16, 2020 4:40 pm
Replies: 9
by ed » Sun Nov 15, 2020 6:43 pm

9 Replies

3370 Views

Last post by JamesD
Mon Nov 16, 2020 4:40 pm
Tweaking a toroidal transformer

Last post by Max N « Sun Nov 08, 2020 9:39 pm
Replies: 10
by Max N » Sat Nov 07, 2020 1:40 pm

10 Replies

3555 Views

Last post by Max N
Sun Nov 08, 2020 9:39 pm
Buffer.

Last post by rowuk « Sun Sep 27, 2020 9:22 am
Replies: 19
by pre65 » Wed Jul 15, 2020 1:05 pm
1

2
19 Replies

6207 Views

Last post by rowuk
Sun Sep 27, 2020 9:22 am
curve tracer

Last post by ed « Sat Aug 22, 2020 5:07 pm
Replies: 6
by ed » Wed Jul 22, 2020 6:33 pm

6 Replies

3532 Views

Last post by ed
Sat Aug 22, 2020 5:07 pm
Gain - Have I Got this Right?

Last post by steve s « Wed Aug 19, 2020 2:18 pm
Replies: 4
by Ray P » Wed Aug 19, 2020 9:49 am

4 Replies

1553 Views

Last post by steve s
Wed Aug 19, 2020 2:18 pm
GZ34 sanity check

Last post by Nick « Sun Aug 16, 2020 8:31 pm
Replies: 9
by Thermionic Idler » Sun Aug 16, 2020 2:42 pm

9 Replies

3975 Views

Last post by Nick
Sun Aug 16, 2020 8:31 pm
Instrument patch cables.

Last post by pre65 « Thu Jul 30, 2020 4:46 pm
Replies: 7
by pre65 » Tue Jul 28, 2020 9:32 am

7 Replies

2886 Views

Last post by pre65
Thu Jul 30, 2020 4:46 pm
Long interconnects.

Last post by chris661 « Wed Jul 15, 2020 9:48 am
Replies: 11
by pre65 » Thu Jul 02, 2020 3:03 pm

11 Replies

5169 Views

Last post by chris661
Wed Jul 15, 2020 9:48 am
Basics of valve amplifiers

Last post by steve s « Fri Jul 10, 2020 8:07 pm
Replies: 17
by bostod » Thu Jul 02, 2020 7:23 pm
1

2
17 Replies

7588 Views

Last post by steve s
Fri Jul 10, 2020 8:07 pm
dc-dc converters

Last post by Mike H « Fri Jul 10, 2020 4:49 pm
Replies: 11
by ed » Mon Jun 29, 2020 12:03 pm

11 Replies

4726 Views

Last post by Mike H
Fri Jul 10, 2020 4:49 pm
Blackgate Caps

Last post by IslandPink « Tue Jul 07, 2020 7:15 pm
Replies: 22
by Greg » Sun Jul 05, 2020 9:29 pm
1

2
22 Replies

8146 Views

Last post by IslandPink
Tue Jul 07, 2020 7:15 pm
Tapping.

Last post by Mike H « Tue Jul 07, 2020 7:00 pm
Replies: 13
by pre65 » Fri Jul 03, 2020 12:33 pm

13 Replies

4543 Views

Last post by Mike H
Tue Jul 07, 2020 7:00 pm
Transformer VA rating.

Last post by Cressy Snr « Mon Jul 06, 2020 1:37 pm
Replies: 6
by pre65 » Mon Jul 06, 2020 10:33 am

6 Replies

2682 Views

Last post by Cressy Snr
Mon Jul 06, 2020 1:37 pm
CCS in Mellow OTL

Last post by Ray P « Sun Jul 05, 2020 4:20 pm
Replies: 8
by Ray P » Sun Jul 05, 2020 7:32 am

8 Replies

2171 Views

Last post by Ray P
Sun Jul 05, 2020 4:20 pm
Kelvin capacitors 4 lead.

Last post by Nick « Tue Jun 16, 2020 8:49 pm
Replies: 3
by pre65 » Tue Jun 16, 2020 5:20 pm

3 Replies

2266 Views

Last post by Nick
Tue Jun 16, 2020 8:49 pm
dht heater supplies - again

Last post by ed « Sat Jun 13, 2020 9:00 am

by ed » Sat Jun 13, 2020 9:00 am

0 Replies

2885 Views

Last post by ed
Sat Jun 13, 2020 9:00 am
112A bias options.

Last post by Paul Barker « Fri Jun 12, 2020 5:18 pm
Replies: 9
by pre65 » Fri Jun 12, 2020 12:57 pm

9 Replies

3410 Views

Last post by Paul Barker
Fri Jun 12, 2020 5:18 pm
Valve anode voltage.

Last post by Paul Barker « Fri Jun 12, 2020 5:07 pm
Replies: 5
by pre65 » Fri Jun 12, 2020 3:08 pm

5 Replies

1688 Views

Last post by Paul Barker
Fri Jun 12, 2020 5:07 pm
PSU designer understanding.

Last post by pre65 « Thu May 21, 2020 11:42 am
Replies: 70
by pre65 » Tue Apr 28, 2020 12:55 pm
1

2

3

4

5
70 Replies

21145 Views

Last post by pre65
Thu May 21, 2020 11:42 am

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