Technical topics

Discussion of circuit theory and design ideas
johnsonad
Transformer secondary windings and sonic differences
Replies
5
Views
7K
johnsonad
johnsonad
D
Need help spec'ing max AC signal for plate choke
Replies
5
Views
7K
Deke609
D
C
Composition of metal plate on Bottlehead hardware?
Replies
3
Views
5K
Paul Birkeland
Paul Birkeland
D
Resonance of PC-parafeed cap-OPT - implications for parafeed cap voltage rating?
Replies
3
Views
5K
Deke609
D
W
Pre amp with remote volume
Replies
1
Views
4K
Paul Birkeland
Paul Birkeland
D
Regulate B+ of a parafeed output stage?
Replies
12
Views
9K
Deke609
D
V
Small signal parafeed transformer
Replies
3
Views
4K
vetmed
V
D
Thoughts/advice on using thermistors with voltage doublers for current inrush?
Replies
14
Views
8K
Jameson
Jameson
D
Noise shunt for 431 bias regulators?
Replies
12
Views
8K
Deke609
D
V
Zero bias
Replies
3
Views
4K
vetmed
V
B
Speaker filter question...
Replies
11
Views
6K
bernieclub
B
D
Impedance switch: non-shorting that breaks signal to the OPT when switching?
Replies
2
Views
3K
Deke609
D
V
300B operating points
Replies
10
Views
7K
vetmed
V
D
Do BH 2-channel amps use local negative feedback?
Replies
2
Views
3K
Deke609
D
D
Star grounding the power supply?
Replies
8
Views
6K
Deke609
D
D
Need help understanding plate load of parafeed output tube
Replies
11
Views
8K
Deke609
D
D
Can a plate choke and CCS be combined as plate load?
Replies
2
Views
3K
Deke609
D
D
C4S learning resources?
Replies
9
Views
8K
Doc B
Doc B
F
Soul sister question
Replies
1
Views
3K
Paul Birkeland
Paul Birkeland
D
High frequency roll-off from driver stage Miller Capacitance?
Replies
3
Views
4K
Deke609
D
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