Technical topics

Discussion of circuit theory and design ideas
Paul Birkeland
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MOVED: Paramour autobias
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0
Views
3K
Paul Birkeland
Paul Birkeland
D
Question re: PJ's formula for parafeed cap sizing
Replies
7
Views
5K
Deke609
D
D
If I'd only known earlier ... things that stumped me for far too long
Replies
5
Views
5K
Deke609
D
A
Kiebert Amplifiers 100 watt 300B quad
Replies
2
Views
3K
Doc B
Doc B
D
Preventing "Mullard flash"
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3
Views
4K
Deke609
D
F
Eros 2 schematic and manual
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4
Views
6K
Paul Birkeland
Paul Birkeland
D
Output signal path - please help me understand
Replies
8
Views
6K
Deke609
D
Karl5150
Multiple in to multiple out
Replies
4
Views
3K
Karl5150
Karl5150
F
C4S capacitor
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2
Views
3K
fitz
F
J
Followers and Quickie
2 3
Replies
50
Views
25K
Jamier
J
P
JJ 2a3-40 Stereomour
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2
Views
3K
Deke609
D
DrewTube
DIY audio shunt attenuator?
Replies
9
Views
7K
Paul Joppa
P
R
Detached getter. Tube safe to use?
Replies
1
Views
3K
Jameson
Jameson
D
Calculating total AC impedance of capacitor and resistor in series
Replies
4
Views
4K
Deke609
D
D
DIY Mains Regulation - Oops, I forgot to factor in heat dissipation
2
Replies
21
Views
12K
Deke609
D
J
Is one winding producing more heat than another?
Replies
12
Views
7K
EricS
EricS
J
Can you have too much heater current headroom?
Replies
11
Views
6K
Paul Birkeland
Paul Birkeland
B
Ideas for a nice sounding power supply
Replies
4
Views
4K
Bardamu
B
D
What sets quiescent grid voltage at -ve ground potential in cathode bias?
Replies
6
Views
5K
Deke609
D
D
Output tube plate resistance and OT Impedance matching
Replies
2
Views
3K
Deke609
D
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