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  Class A, AB1, B, C Operation/Modes
How Class A, AB1, B, C Modes Work and Their Strengths and Weaknesses ( 1 2 3)
By: positron on Sun, 05 February 2023
29 31908 Mon, 08 July 2024 20:22
By: positron
  New Production Tung Sol 6550, Penta KT88s
Concerning Audio Quality ( 1 2 3)
By: positron on Wed, 18 January 2023
20 13145 Sun, 07 July 2024 20:26
By: positron
  New source of hum
By: gofar99 on Mon, 29 April 2024
1 1743 Mon, 29 April 2024 21:27
By: Wayne Parham
  NOS 6NC3 vs 6N3C-E Output Tubes
By: kasperbergholt on Sun, 21 April 2024
3 9631 Sat, 27 April 2024 03:15
By: kasperbergholt
  New Toroid Output Transformer Marketed?
Improved Version of Toroid Output Transformer
By: positron on Wed, 20 March 2024
2 2223 Fri, 22 March 2024 10:53
By: positron
  Update on Previous Info on Oddwatt Amp issue
By: gofar99 on Sat, 02 March 2024
1 1776 Sun, 03 March 2024 08:43
By: Wayne Parham
  Source loop
By: Rusty on Sat, 16 September 2023
7 6705 Wed, 29 November 2023 10:54
By: Rusty
  Optimal settings for 6P3S-E output tubes in Leben CS-600(X)s
The CS-600 can be configured to use a variety of output tubes through two switches, among them are Russian 6P3S-E/6П3С-Е output tubes, which are compatible with 6L6/5881 tubes.
By: kasperbergholt on Fri, 06 October 2023
3 4397 Sun, 08 October 2023 08:57
By: gofar99
  Seeking info - Antique Sound Usa ASUSA K2003 amp
By: Suhomeso on Thu, 28 September 2023
3 4262 Thu, 28 September 2023 20:45
By: Suhomeso
  EL34 tubes - RFT vs EI Yugoslavia
I'm looking for recommendation of output tubes for my Leben CS-600 amplifier
By: kasperbergholt on Sat, 12 August 2023
0 2400 Sat, 12 August 2023 03:58
By: kasperbergholt
  A fix for Oddwatt type amps running on low AC mains voltage
By: gofar99 on Sat, 08 July 2023
0 2652 Sat, 08 July 2023 20:55
By: gofar99
  Tube amps on PC.
By: gofar99 on Mon, 12 June 2023
2 4015 Tue, 13 June 2023 12:45
By: Barryso
  Interpreting tube setup in a Leben CS-600
By: kasperbergholt on Tue, 11 April 2023
2 4519 Sun, 16 April 2023 11:05
By: kasperbergholt
  Leben CS600X - Class AB or pure class A?
By: kasperbergholt on Wed, 22 February 2023
8 10131 Wed, 29 March 2023 11:43
By: positron
  Dating of 4 6CS7 (NOS) tubes from Sylvania
By: kasperbergholt on Wed, 29 March 2023
0 2700 Wed, 29 March 2023 06:03
By: kasperbergholt
  Cleaning Connections on Equipment
How Often Do You Clean your connections?
By: positron on Tue, 13 December 2022
6 7580 Mon, 23 January 2023 20:19
By: gofar99
  A 11 year long quest
By: gofar99 on Wed, 29 September 2021
5 10702 Tue, 27 September 2022 19:22
By: positron
  Sovtek KT88 Tube
Have a spare used one
By: positron on Thu, 03 February 2022
4 8691 Sat, 17 September 2022 23:05
By: positron
  What company logo
By: gofar99 on Sun, 04 September 2022
3 5773 Mon, 05 September 2022 16:35
By: Wayne Parham
  Fivre 6SL7 tube - sound profile / recommendation / comparisons
... some new questions have shown up in regards to a pair of NOS 6SL7GT tubes from the Italian producer Fivre I've come across.
By: kasperbergholt on Wed, 13 July 2022
2 5532 Thu, 14 July 2022 09:47
By: kasperbergholt
  The next big thing ( 1 2)
By: gofar99 on Sun, 22 May 2022
12 15563 Fri, 01 July 2022 13:21
By: gofar99
  Funky Project
By: gofar99 on Wed, 23 March 2022
8 12383 Sun, 08 May 2022 14:15
By: gofar99
  Tubes from Russia
By: smartt on Sat, 05 March 2022
1 5657 Sat, 05 March 2022 20:08
By: gofar99
  Identical gain & tonality in double-triode tubes (ECC82)
By: kasperbergholt on Mon, 13 December 2021
5 11566 Sun, 19 December 2021 22:53
By: positron
  ECC 82 recommendation | Telefunken vs Mazda Belvu
By: kasperbergholt on Sat, 04 December 2021
7 15193 Sat, 18 December 2021 11:08
By: kasperbergholt
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