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RTZ SDM (DSD) DAC

Last post by MistyBlue « Fri Apr 25, 2025 8:12 pm
Replies: 139
by Ray P » Sun Oct 02, 2022 2:04 pm
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139 Replies

215984 Views

Last post by MistyBlue
Fri Apr 25, 2025 8:12 pm
KEL84 Totally Triode

Last post by Paul Barker « Thu Apr 24, 2025 2:44 pm
Replies: 12
by Paul Barker » Mon Apr 21, 2025 7:15 am

12 Replies

2157 Views

Last post by Paul Barker
Thu Apr 24, 2025 2:44 pm
C3g Aikido Phono

Last post by simon « Tue Apr 22, 2025 8:38 pm
Replies: 417
by simon » Sat Jan 28, 2023 4:41 pm
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417 Replies

407214 Views

Last post by simon
Tue Apr 22, 2025 8:38 pm
Confused about a search for KEL84 upgrades

Last post by Greg « Sat Apr 19, 2025 12:33 pm
Replies: 11
by Paul Barker » Mon Dec 16, 2024 2:17 pm

11 Replies

17646 Views

Last post by Greg
Sat Apr 19, 2025 12:33 pm
Dynatron HFC 52 with L78 TT

Last post by Ali Tait « Fri Apr 11, 2025 3:01 pm
Replies: 22
by gninnam » Fri Nov 22, 2019 7:19 pm
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22 Replies

16290 Views

Last post by Ali Tait
Fri Apr 11, 2025 3:01 pm
Another Concrete Loudspeaker Project

Last post by Ray P « Wed Apr 09, 2025 2:30 pm
Replies: 40
by Ray P » Mon Feb 17, 2025 7:56 am
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40 Replies

47253 Views

Last post by Ray P
Wed Apr 09, 2025 2:30 pm
300b SE

Last post by Paul Barker « Wed Apr 09, 2025 7:00 am
Replies: 28
by Paul Barker » Sat Mar 22, 2025 9:06 am
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28 Replies

19669 Views

Last post by Paul Barker
Wed Apr 09, 2025 7:00 am
Gear Box Rantings

Last post by Mike H « Mon Apr 07, 2025 8:18 pm
Replies: 21
by Nick » Wed Nov 20, 2024 4:31 pm
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21 Replies

40697 Views

Last post by Mike H
Mon Apr 07, 2025 8:18 pm
RTZ DAC Attack!

Last post by Tony Moore « Mon Apr 07, 2025 10:10 am
Replies: 22
by MistyBlue » Fri Jan 31, 2025 10:37 pm
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22 Replies

25051 Views

Last post by Tony Moore
Mon Apr 07, 2025 10:10 am
EL38 Push Pull Monoblocks

Last post by Paul Barker « Sun Apr 06, 2025 8:11 am
Replies: 1
by Paul Barker » Sun Apr 06, 2025 8:02 am

1 Replies

2160 Views

Last post by Paul Barker
Sun Apr 06, 2025 8:11 am
EL38 Triode Connected HPA Pentode Drive

Last post by Cressy Snr « Tue Apr 01, 2025 2:19 pm
Replies: 24
by Cressy Snr » Tue Mar 18, 2025 12:21 pm
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24 Replies

17518 Views

Last post by Cressy Snr
Tue Apr 01, 2025 2:19 pm
1626 HPA with Pentode Driver

Last post by Cressy Snr « Mon Mar 17, 2025 7:20 pm
Replies: 11
by Cressy Snr » Fri Mar 07, 2025 10:52 pm

11 Replies

10146 Views

Last post by Cressy Snr
Mon Mar 17, 2025 7:20 pm
Single-Ended Pentode Redux

Last post by Paul Barker « Fri Mar 14, 2025 3:29 pm
Replies: 366
by Cressy Snr » Tue Jan 11, 2022 4:51 pm
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366 Replies

158566 Views

Last post by Paul Barker
Fri Mar 14, 2025 3:29 pm
Push Pull rk71 transformer phase split

Last post by Paul Barker « Thu Mar 13, 2025 7:05 am
Replies: 4
by Paul Barker » Tue Mar 11, 2025 5:54 am

4 Replies

5414 Views

Last post by Paul Barker
Thu Mar 13, 2025 7:05 am
PP GM70

Last post by Paul Barker « Thu Mar 06, 2025 12:59 pm
Replies: 1
by Paul Barker » Thu Mar 06, 2025 12:41 pm

1 Replies

4977 Views

Last post by Paul Barker
Thu Mar 06, 2025 12:59 pm
DHT Heater using VCCS - PCB or Kit (Possible Group buy)

Last post by revintage « Wed Mar 05, 2025 6:52 pm
Replies: 1199
by Andrew » Thu Feb 21, 2013 8:41 pm
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1199 Replies

735046 Views

Last post by revintage
Wed Mar 05, 2025 6:52 pm
6V6 Single Valve Headphone Amp

Last post by Cressy Snr « Wed Feb 26, 2025 8:18 pm
Replies: 28
by Cressy Snr » Wed Feb 05, 2025 3:43 pm
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28 Replies

36720 Views

Last post by Cressy Snr
Wed Feb 26, 2025 8:18 pm
MOBIFO

Last post by revintage « Wed Feb 26, 2025 1:20 pm
Replies: 26
by revintage » Mon Jan 27, 2025 3:34 pm
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26 Replies

22142 Views

Last post by revintage
Wed Feb 26, 2025 1:20 pm
Using the universal driver chassis to drive the 211

Last post by Paul Barker « Thu Feb 20, 2025 7:41 am
Replies: 2
by Paul Barker » Fri Feb 14, 2025 1:37 pm

2 Replies

6536 Views

Last post by Paul Barker
Thu Feb 20, 2025 7:41 am
A not simple GM70 SE but not monoblock.

Last post by Paul Barker « Thu Feb 13, 2025 12:38 pm
Replies: 3
by Paul Barker » Wed Feb 12, 2025 12:19 pm

3 Replies

7022 Views

Last post by Paul Barker
Thu Feb 13, 2025 12:38 pm
Output capacitorless MOFO

Last post by revintage « Tue Feb 04, 2025 7:23 pm
Replies: 7
by revintage » Tue Feb 04, 2025 12:37 pm

7 Replies

10038 Views

Last post by revintage
Tue Feb 04, 2025 7:23 pm
Another "Not about HiFi" project... (but about sound)

Last post by shane « Mon Feb 03, 2025 5:58 pm
Replies: 26
by jack » Wed Aug 16, 2023 2:47 pm
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26 Replies

57479 Views

Last post by shane
Mon Feb 03, 2025 5:58 pm
Converting EL38 amp to 300b Amp

Last post by Paul Barker « Sun Feb 02, 2025 5:23 pm
Replies: 149
by Paul Barker » Thu Nov 28, 2024 8:12 am
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149 Replies

199197 Views

Last post by Paul Barker
Sun Feb 02, 2025 5:23 pm
Amp No 46

Last post by Paul Barker « Tue Jan 28, 2025 5:42 pm
Replies: 91
by Cressy Snr » Sun Oct 27, 2024 8:39 pm
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154774 Views

Last post by Paul Barker
Tue Jan 28, 2025 5:42 pm
It's time to go full Karna Kay

Last post by Thermionic Idler « Mon Jan 27, 2025 11:32 am
Replies: 212
by Thermionic Idler » Sun Nov 17, 2024 7:58 pm
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212 Replies

263545 Views

Last post by Thermionic Idler
Mon Jan 27, 2025 11:32 am
Slow Mo MoFo

Last post by Paul Barker « Mon Jan 27, 2025 2:59 am
Replies: 224
by MistyBlue » Tue Aug 20, 2024 10:58 pm
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224 Replies

279429 Views

Last post by Paul Barker
Mon Jan 27, 2025 2:59 am
EL38 Triode Connected Class A PP

Last post by Daniel Quinn « Tue Jan 07, 2025 5:28 pm
Replies: 35
by Paul Barker » Tue Dec 17, 2024 8:14 am
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35 Replies

38633 Views

Last post by Daniel Quinn
Tue Jan 07, 2025 5:28 pm
Reflow Oven Upgrade

Last post by Ray P « Thu Jan 02, 2025 7:17 pm
Replies: 6
by Ray P » Wed Jan 01, 2025 7:28 pm

6 Replies

11829 Views

Last post by Ray P
Thu Jan 02, 2025 7:17 pm
A Simple GM70 SE

Last post by Paul Barker « Fri Dec 20, 2024 1:25 pm
Replies: 21
by Paul Barker » Fri Nov 22, 2024 11:53 am
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21 Replies

34010 Views

Last post by Paul Barker
Fri Dec 20, 2024 1:25 pm
833A (GU-48) Amp

Last post by Paul Barker « Sat Dec 14, 2024 10:41 am
Replies: 1261
by pre65 » Wed Jun 16, 2010 11:19 am
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1261 Replies

786230 Views

Last post by Paul Barker
Sat Dec 14, 2024 10:41 am
A less Simple GM70 Amplifier

Last post by Paul Barker « Mon Dec 09, 2024 9:42 am
Replies: 7
by Paul Barker » Tue Nov 26, 2024 9:35 pm

7 Replies

16740 Views

Last post by Paul Barker
Mon Dec 09, 2024 9:42 am
PX25 SE Monoblock

Last post by Paul Barker « Fri Dec 06, 2024 11:02 am
Replies: 4
by Paul Barker » Thu Dec 05, 2024 4:07 pm

4 Replies

13651 Views

Last post by Paul Barker
Fri Dec 06, 2024 11:02 am
Cambridge A1 Mk3 - What to do?

Last post by izzy wizzy « Fri Dec 06, 2024 2:02 am
Replies: 10
by izzy wizzy » Sat Nov 30, 2024 9:38 pm

10 Replies

21938 Views

Last post by izzy wizzy
Fri Dec 06, 2024 2:02 am
Another MoFo

Last post by revintage « Sun Dec 01, 2024 11:06 pm
Replies: 88
by Ray P » Sat Mar 23, 2019 5:45 pm
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88 Replies

113200 Views

Last post by revintage
Sun Dec 01, 2024 11:06 pm
EAR834 Clone

Last post by Ray P « Sun Dec 01, 2024 6:35 pm

by Ray P » Sun Dec 01, 2024 6:35 pm

0 Replies

20067 Views

Last post by Ray P
Sun Dec 01, 2024 6:35 pm
Mullard EL38 Triode connected.

Last post by Paul Barker « Sat Nov 30, 2024 3:36 pm
Replies: 44
by Paul Barker » Tue Apr 16, 2024 9:14 am
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44 Replies

64277 Views

Last post by Paul Barker
Sat Nov 30, 2024 3:36 pm
4 watt 211 Amplifier into GM70 Amplifier

Last post by Paul Barker « Sun Nov 17, 2024 12:13 pm
Replies: 51
by Paul Barker » Tue Nov 12, 2024 2:47 pm
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51 Replies

63236 Views

Last post by Paul Barker
Sun Nov 17, 2024 12:13 pm
GM70 PP

Last post by shane « Thu Oct 31, 2024 10:05 pm
Replies: 225
by izzy wizzy » Sat Jul 13, 2019 4:37 pm
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225 Replies

273963 Views

Last post by shane
Thu Oct 31, 2024 10:05 pm
Winter Project #1

Last post by Mike H « Thu Oct 24, 2024 9:27 pm
Replies: 25
by Mike H » Fri Dec 13, 2019 8:30 pm
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25 Replies

33664 Views

Last post by Mike H
Thu Oct 24, 2024 9:27 pm
Mofo

Last post by Morgan Jones « Fri Oct 18, 2024 5:16 pm
Replies: 176
by steve s » Mon May 11, 2020 10:02 pm
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176 Replies

543114 Views

Last post by Morgan Jones
Fri Oct 18, 2024 5:16 pm
Pass Sony VFET Project

Last post by Ray P « Thu Oct 10, 2024 6:48 am
Replies: 23
by Ray P » Thu Jan 11, 2024 6:59 pm
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23 Replies

41492 Views

Last post by Ray P
Thu Oct 10, 2024 6:48 am
Amp Number 45

Last post by Cressy Snr « Sun Sep 29, 2024 10:07 pm
Replies: 16
by Cressy Snr » Sat Sep 07, 2024 9:05 pm
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16 Replies

40008 Views

Last post by Cressy Snr
Sun Sep 29, 2024 10:07 pm
Refurbishing a Thorens TD 150

Last post by Morgan Jones « Sun Sep 29, 2024 6:20 pm
Replies: 23
by Ray P » Sat Sep 28, 2024 6:54 pm
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23 Replies

36927 Views

Last post by Morgan Jones
Sun Sep 29, 2024 6:20 pm
Shared Transformer Secondary driving separate bridge rectifiers

Last post by RhythMick « Tue Sep 24, 2024 7:12 pm
Replies: 3
by RhythMick » Tue Sep 24, 2024 5:22 pm

3 Replies

14304 Views

Last post by RhythMick
Tue Sep 24, 2024 7:12 pm
New SE With Triode Mode KT120/150

Last post by Paul Barker « Fri Sep 20, 2024 6:27 pm
Replies: 551
by Cressy Snr » Thu Jun 11, 2020 7:32 pm
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551 Replies

330066 Views

Last post by Paul Barker
Fri Sep 20, 2024 6:27 pm
Recycling a Marantz Integrated Amp.

Last post by Nick « Tue Sep 17, 2024 6:27 pm
Replies: 6
by Ray P » Sat Sep 07, 2024 10:20 pm

6 Replies

17677 Views

Last post by Nick
Tue Sep 17, 2024 6:27 pm
GM70 Monoblocks’

Last post by Nick « Mon Sep 16, 2024 11:38 am
Replies: 107
by Paul Barker » Wed Mar 13, 2024 8:28 am
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107 Replies

115931 Views

Last post by Nick
Mon Sep 16, 2024 11:38 am
6.3v indirectly heater valve PCB (possible group buy?)

Last post by Nick « Fri Sep 13, 2024 9:09 am
Replies: 479
by Andrew » Thu Mar 01, 2012 8:08 pm
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479 Replies

302925 Views

Last post by Nick
Fri Sep 13, 2024 9:09 am
Valve PHONO Preamp

Last post by Paul Barker « Tue Sep 10, 2024 6:55 pm
Replies: 10
by ACPEN » Sat Jul 27, 2024 1:55 pm

10 Replies

27348 Views

Last post by Paul Barker
Tue Sep 10, 2024 6:55 pm
Elektor Fortissimo-100 amplifier...

Last post by jack « Sun Sep 08, 2024 5:34 pm
Replies: 7
by jack » Mon Nov 07, 2022 5:47 pm

7 Replies

24252 Views

Last post by jack
Sun Sep 08, 2024 5:34 pm

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