Valves

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Valve amplifier service

Last post by simon « Wed Apr 26, 2023 11:56 pm
Replies: 25
by bostod » Sat Apr 01, 2023 7:45 am
1

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25 Replies

2539 Views

Last post by simon
Wed Apr 26, 2023 11:56 pm
PP3521 idht

Last post by Paul Barker « Sat Apr 22, 2023 11:08 am
Replies: 20
by Paul Barker » Fri Mar 17, 2023 6:29 pm
1

2
20 Replies

1656 Views

Last post by Paul Barker
Sat Apr 22, 2023 11:08 am
Ed

Last post by Nick « Wed Mar 08, 2023 10:26 am
Replies: 22
by Paul Barker » Sun Mar 05, 2023 6:31 pm
1

2
22 Replies

5083 Views

Last post by Nick
Wed Mar 08, 2023 10:26 am
What are the oldest affordable valves you can still buy?

Last post by steve s « Tue Feb 07, 2023 4:16 pm
Replies: 13
by Thermionic Idler » Mon Feb 06, 2023 9:59 am

13 Replies

2801 Views

Last post by steve s
Tue Feb 07, 2023 4:16 pm
Any cure for a noisy valve?

Last post by Max N « Sun Jan 22, 2023 4:59 pm
Replies: 9
by Max N » Sat Jan 14, 2023 1:26 pm

9 Replies

2383 Views

Last post by Max N
Sun Jan 22, 2023 4:59 pm
VT-127A

Last post by IslandPink « Fri Jul 01, 2022 10:34 pm

by IslandPink » Fri Jul 01, 2022 10:34 pm

0 Replies

5803 Views

Last post by IslandPink
Fri Jul 01, 2022 10:34 pm
6V6 alternatives

Last post by Paul Barker « Wed Apr 13, 2022 5:04 am
Replies: 2
by Paul Barker » Tue Apr 12, 2022 3:20 pm

2 Replies

2688 Views

Last post by Paul Barker
Wed Apr 13, 2022 5:04 am
Another cheap 300B !

Last post by IslandPink « Mon Mar 07, 2022 6:58 pm
Replies: 4
by IslandPink » Mon Mar 15, 2021 10:42 pm

4 Replies

4757 Views

Last post by IslandPink
Mon Mar 07, 2022 6:58 pm
EL82

Last post by Paul Barker « Mon Jan 24, 2022 10:57 am
Replies: 1
by Paul Barker » Mon Jan 24, 2022 10:41 am

1 Replies

2376 Views

Last post by Paul Barker
Mon Jan 24, 2022 10:57 am
Tube geekery to pass the time.

Last post by Nick « Fri Dec 31, 2021 12:35 pm
Replies: 27
by Cressy Snr » Wed Dec 29, 2021 12:56 pm
1

2
27 Replies

6156 Views

Last post by Nick
Fri Dec 31, 2021 12:35 pm
1619

Last post by Paul Barker « Sun Dec 19, 2021 10:31 am
Replies: 4
by Paul Barker » Thu Dec 16, 2021 6:31 pm

4 Replies

2491 Views

Last post by Paul Barker
Sun Dec 19, 2021 10:31 am
Is this a Valve of some kind?

Last post by izzy wizzy « Tue Oct 05, 2021 6:47 pm
Replies: 9
by Dave the bass » Mon Oct 04, 2021 9:29 pm

9 Replies

4720 Views

Last post by izzy wizzy
Tue Oct 05, 2021 6:47 pm
D3a Triode Square Wave shows HF boost

Last post by Mike H « Wed Jul 28, 2021 9:29 pm
Replies: 17
by RhythMick » Fri Jul 23, 2021 9:19 pm
1

2
17 Replies

6982 Views

Last post by Mike H
Wed Jul 28, 2021 9:29 pm
Class A2 - heater hum

Last post by Paul Barker « Thu Jul 22, 2021 6:34 pm
Replies: 7
by ACPEN » Thu Jul 22, 2021 10:08 am

7 Replies

3007 Views

Last post by Paul Barker
Thu Jul 22, 2021 6:34 pm
801A VT62 Power and Distortion

Last post by RhythMick « Thu Jul 15, 2021 9:16 pm
Replies: 40
by Paul Barker » Fri Apr 06, 2012 8:11 am
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40 Replies

20814 Views

Last post by RhythMick
Thu Jul 15, 2021 9:16 pm
Marconi DA100 Valves

Last post by Nick « Wed Jun 30, 2021 4:41 pm
Replies: 9
by Cal » Tue Jun 29, 2021 8:16 am

9 Replies

4196 Views

Last post by Nick
Wed Jun 30, 2021 4:41 pm
Another insane valve for phonos

Last post by Nick « Sun May 30, 2021 11:26 pm
Replies: 12
by IslandPink » Wed Jul 08, 2020 8:21 pm

12 Replies

7799 Views

Last post by Nick
Sun May 30, 2021 11:26 pm
SRPP stage useing a 5670

Last post by ruffrecords « Thu May 27, 2021 9:53 pm
Replies: 19
by acorn » Sat Oct 06, 2018 3:38 pm
1

2
19 Replies

11137 Views

Last post by ruffrecords
Thu May 27, 2021 9:53 pm
Seraphim Phonostage

Last post by ruffrecords « Wed May 26, 2021 11:47 am
Replies: 7
by JohnG » Mon Feb 24, 2020 5:58 am

7 Replies

7244 Views

Last post by ruffrecords
Wed May 26, 2021 11:47 am
211

Last post by IslandPink « Tue May 11, 2021 2:59 pm
Replies: 12
by ed » Sun May 02, 2021 9:38 am

12 Replies

5423 Views

Last post by IslandPink
Tue May 11, 2021 2:59 pm
WAD 300b hum and buzz

Last post by Nick « Sun Nov 15, 2020 3:27 pm
Replies: 3
by adrian » Sat Nov 02, 2019 3:17 pm

3 Replies

7029 Views

Last post by Nick
Sun Nov 15, 2020 3:27 pm
john wood kt88 amp

Last post by jayman67 « Sun Sep 06, 2020 6:01 pm

by jayman67 » Sun Sep 06, 2020 6:01 pm

0 Replies

4648 Views

Last post by jayman67
Sun Sep 06, 2020 6:01 pm
New Transcendent pre-amp

Last post by Nick « Sat Aug 01, 2020 10:40 am
Replies: 2
by Ray P » Sat Aug 01, 2020 7:59 am

2 Replies

3912 Views

Last post by Nick
Sat Aug 01, 2020 10:40 am
Interesting Meters & 300B amp

Last post by RhythMick « Sun Jul 26, 2020 2:11 pm
Replies: 1
by Ray P » Sat Jul 25, 2020 10:42 pm

1 Replies

3241 Views

Last post by RhythMick
Sun Jul 26, 2020 2:11 pm
Saw these and thought of you guys...

Last post by Ali Tait « Fri Jul 17, 2020 5:50 pm
Replies: 22
by Ray P » Thu Jul 16, 2020 7:07 pm
1

2
22 Replies

9167 Views

Last post by Ali Tait
Fri Jul 17, 2020 5:50 pm
Help needed on kt88 WAD amplifier

Last post by Nick « Thu Jul 02, 2020 10:20 pm
Replies: 3
by bostod » Thu Jul 02, 2020 10:32 am

3 Replies

3568 Views

Last post by Nick
Thu Jul 02, 2020 10:20 pm
6AK5 and 6AK6 anyone aware of circuits for us with?

Last post by Paul Barker « Sat Jun 27, 2020 9:48 pm
Replies: 2
by Paul Barker » Sat Jun 27, 2020 6:37 pm

2 Replies

3334 Views

Last post by Paul Barker
Sat Jun 27, 2020 9:48 pm
Cheap integrated on ebay, with MM stage. Opinions?

Last post by adrian « Thu Jun 11, 2020 12:26 pm
Replies: 7
by adrian » Tue Jun 09, 2020 2:14 pm

7 Replies

6318 Views

Last post by adrian
Thu Jun 11, 2020 12:26 pm
Tung Sol

Last post by Paul Barker « Mon Jun 08, 2020 9:21 pm
Replies: 6
by Baggy Trousers » Mon Jun 08, 2020 9:53 am

6 Replies

4779 Views

Last post by Paul Barker
Mon Jun 08, 2020 9:21 pm
CV315/4304CB/VT62 - RAF Transmitter

Last post by pre65 « Wed Apr 08, 2020 1:08 pm
Replies: 25
by Cressy Snr » Sun Mar 07, 2010 4:35 pm
1

2
25 Replies

20820 Views

Last post by pre65
Wed Apr 08, 2020 1:08 pm
Beard P101 amplifier.

Last post by Mike H « Thu Feb 06, 2020 8:39 pm
Replies: 14
by Chopsaw » Sun Feb 02, 2020 1:24 pm

14 Replies

10701 Views

Last post by Mike H
Thu Feb 06, 2020 8:39 pm
uTracer v6

Last post by jack « Sat Jan 04, 2020 4:59 pm

by jack » Sat Jan 04, 2020 4:59 pm

0 Replies

5514 Views

Last post by jack
Sat Jan 04, 2020 4:59 pm
Valve Tester

Last post by little eddy « Tue Nov 12, 2019 2:44 pm
Replies: 2
by little eddy » Mon Nov 11, 2019 4:12 pm

2 Replies

5367 Views

Last post by little eddy
Tue Nov 12, 2019 2:44 pm
TAD KT88-STR

Last post by Qwin « Wed Nov 06, 2019 4:54 pm

by Qwin » Wed Nov 06, 2019 4:54 pm

0 Replies

5368 Views

Last post by Qwin
Wed Nov 06, 2019 4:54 pm
Decoupling...

Last post by Nick « Sat Oct 26, 2019 10:45 am
Replies: 53
by steve s » Sat Nov 23, 2013 10:15 am
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3

4
53 Replies

33383 Views

Last post by Nick
Sat Oct 26, 2019 10:45 am
CV4003 / ECC82 types...

Last post by Mike H « Wed Oct 23, 2019 4:46 pm
Replies: 6
by jack » Mon Sep 30, 2019 10:05 pm

6 Replies

7369 Views

Last post by Mike H
Wed Oct 23, 2019 4:46 pm
uTracer 400V upgrade kit available...

Last post by Paul Barker « Mon Sep 30, 2019 10:31 pm
Replies: 30
by jack » Sat Apr 11, 2015 6:33 pm
1

2

3
30 Replies

24956 Views

Last post by Paul Barker
Mon Sep 30, 2019 10:31 pm
Recommendations needed for high quality valve bases

Last post by Mike H « Wed Sep 11, 2019 8:47 pm
Replies: 3
by RhythMick » Tue Aug 20, 2019 3:11 pm

3 Replies

5965 Views

Last post by Mike H
Wed Sep 11, 2019 8:47 pm
New toys to play with

Last post by pre65 « Wed Jun 05, 2019 6:52 pm
Replies: 11
by mainscablesrus » Mon Jun 03, 2019 9:21 pm

11 Replies

11014 Views

Last post by pre65
Wed Jun 05, 2019 6:52 pm
OH YES

Last post by IslandPink « Sat May 04, 2019 12:08 pm
Replies: 14
by mainscablesrus » Mon Apr 29, 2019 12:18 am

14 Replies

11472 Views

Last post by IslandPink
Sat May 04, 2019 12:08 pm
Help hunting down an odd fault

Last post by chris661 « Thu May 02, 2019 6:25 pm
Replies: 1
by RhythMick » Sat Apr 06, 2019 6:29 pm

1 Replies

4450 Views

Last post by chris661
Thu May 02, 2019 6:25 pm
Drool... !

Last post by Paul Barker « Thu Apr 25, 2019 2:09 pm
Replies: 4
by IslandPink » Tue Apr 23, 2019 8:17 pm

4 Replies

6026 Views

Last post by Paul Barker
Thu Apr 25, 2019 2:09 pm
GZ37 horizontal?

Last post by Mike H « Sat Mar 02, 2019 3:39 pm
Replies: 13
by Max N » Tue Feb 26, 2019 9:46 pm

13 Replies

11373 Views

Last post by Mike H
Sat Mar 02, 2019 3:39 pm
For high-power enthusiasts

Last post by chris661 « Wed Feb 20, 2019 7:17 pm
Replies: 6
by IslandPink » Mon Feb 18, 2019 6:14 pm

6 Replies

7365 Views

Last post by chris661
Wed Feb 20, 2019 7:17 pm
Finished and working - 12 valve all DHT PP 26-71a-45

Last post by steve s « Sun Feb 03, 2019 12:11 am
Replies: 286
by RhythMick » Thu Aug 02, 2018 2:05 pm
1

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16

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18

19

20
286 Replies

116898 Views

Last post by steve s
Sun Feb 03, 2019 12:11 am
NOS Siemens and Halske ECC801S

Last post by IslandPink « Sat Nov 24, 2018 11:55 am
Replies: 4
by JohnG » Sun Nov 11, 2018 10:58 am

4 Replies

6496 Views

Last post by IslandPink
Sat Nov 24, 2018 11:55 am
SRA/VTA adjustment and tube distortion

Last post by Nick « Mon Oct 29, 2018 5:29 pm
Replies: 7
by Wolfgang » Sun Oct 28, 2018 4:13 pm

7 Replies

7720 Views

Last post by Nick
Mon Oct 29, 2018 5:29 pm
The Pinnacle

Last post by Ali Tait « Fri Oct 05, 2018 11:09 am
Replies: 8
by Ray P » Wed Oct 03, 2018 11:04 pm

8 Replies

8189 Views

Last post by Ali Tait
Fri Oct 05, 2018 11:09 am
PL36 Sweep Tube

Last post by Cressy Snr « Tue Oct 02, 2018 11:35 am
Replies: 2
by Cressy Snr » Sun Sep 23, 2018 3:56 pm

2 Replies

6576 Views

Last post by Cressy Snr
Tue Oct 02, 2018 11:35 am
Cooper Smith amp

Last post by acorn « Fri Sep 21, 2018 3:37 pm
Replies: 2
by acorn » Fri Sep 21, 2018 3:28 pm

2 Replies

5868 Views

Last post by acorn
Fri Sep 21, 2018 3:37 pm

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