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Pre amp with remote volume
Started by whitty |
1 Replies
3098 Views |
September 30, 2020, 05:34:57 AMby Paul Birkeland |
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Regulate B+ of a parafeed output stage?
Started by Deke609 |
12 Replies
6162 Views |
September 18, 2020, 04:42:44 AM by Deke609 |
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Small signal parafeed transformer
Started by vetmed |
3 Replies
2918 Views |
September 03, 2020, 05:34:20 AM by vetmed |
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14 Replies
5713 Views |
August 31, 2020, 07:23:56 AM by oguinn |
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Noise shunt for 431 bias regulators?
Started by Deke609 |
12 Replies
6071 Views |
August 05, 2020, 07:07:56 AM by Deke609 |
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3 Replies
2784 Views |
August 01, 2020, 05:22:58 AM by vetmed |
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Speaker filter question...
Started by bernieclub |
11 Replies
4668 Views |
July 29, 2020, 11:07:52 AM by bernieclub |
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Impedance switch: non-shorting that breaks signal to the OPT when switching?
Started by Deke609 |
2 Replies
2226 Views |
July 26, 2020, 01:49:26 PM by Deke609 |
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300B operating points
Started by vetmed |
10 Replies
4854 Views |
July 21, 2020, 08:29:52 AM by vetmed |
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Do BH 2-channel amps use local negative feedback?
Started by Deke609 |
2 Replies
2207 Views |
July 19, 2020, 02:46:16 PM by Deke609 |
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Star grounding the power supply?
Started by Deke609 |
8 Replies
3954 Views |
July 08, 2020, 02:00:51 PM by Deke609 |
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Need help understanding plate load of parafeed output tube
Started by Deke609 |
11 Replies
5452 Views |
June 17, 2020, 02:45:55 PM by Deke609 |
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Can a plate choke and CCS be combined as plate load?
Started by Deke609 |
2 Replies
2155 Views |
June 15, 2020, 04:04:51 AM by Deke609 |
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C4S learning resources?
Started by Deke609 |
9 Replies
6000 Views |
May 19, 2020, 06:56:30 AM by Doc B. |
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Soul sister question
Started by fitz |
1 Replies
1953 Views |
April 22, 2020, 12:40:36 PM by Paul Birkeland |
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High frequency roll-off from driver stage Miller Capacitance?
Started by Deke609 |
3 Replies
2514 Views |
March 10, 2020, 03:36:40 PM by Deke609 |
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MOVED: Paramour autobias
Started by Paul Birkeland |
0 Replies
1718 Views |
February 13, 2020, 06:29:37 AM by Paul Birkeland |
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Question re: PJ's formula for parafeed cap sizing
Started by Deke609 |
7 Replies
3499 Views |
February 11, 2020, 06:15:20 AM by Deke609 |
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If I'd only known earlier ... things that stumped me for far too long
Started by Deke609 |
5 Replies
3225 Views |
February 07, 2020, 07:40:11 AM by Deke609 |
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Kiebert Amplifiers 100 watt 300B quad
Started by archeus68 |
2 Replies
2146 Views |
January 28, 2020, 06:29:31 AM by Doc B. |