WOPL Tips and Archive

Forum exclusively for Phase Linear and White Oak conversions, improvements, tips and other sage advice from our resident experts!
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Parts Database
7 8 9
Replies
167
Views
52,123
Gibsonian
laatsch55
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Joe's Nuggets
Replies
7
Views
1,536
laatsch55
laatsch55
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Transistor Testing Basics with Graphics... Thanks to Markthefixer and Echowars
Replies
9
Views
3,010
Gepetto
Gepetto
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Bipolar transistor grading
2
Replies
25
Views
10,203
laatsch55
Gepetto
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White Oak Audio Design PL14_20 Quick Test Steps - Quasi-Comp and Full-Comp
2
Replies
22
Views
10,458
Gepetto
Gepetto
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Description of latch up tendency in Phase Linear Amplifiers
Replies
11
Views
7,511
JustinoChiu
Gepetto
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Forming Phase Linear Power Supply Bulk Capacitors
Replies
17
Views
9,491
WOPL Sniffer
Gepetto
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Star Point Ground Scheme for PL700B Amplifiers
2
Replies
22
Views
7,003
marcok
Gepetto
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Debugging the Original Phase Linear PL14a/b PCBA
Replies
1
Views
3,008
laatsch55
Gepetto
  • Sticky
The " Save Time and Trouble With These Hints and Tricks" Thread!!
2
Replies
37
Views
20,763
premiumplus
laatsch55
  • Sticky
Phase Linear Serial Numbers
Replies
10
Views
4,970
Northwinds
Gepetto
  • Sticky
Bias Adjustment on the White Oak Audio Design PL14_20 Board
2 3 4
Replies
74
Views
21,402
laatsch55
Gepetto
  • Sticky
What are the output driver emitter resistors for?
Replies
15
Views
4,326
laatsch55
J
WOPL PL14-20 Rev E and PL 400 Series II
Replies
1
Views
510
Jer Jer KK6AC
M
AC Thermal Switch Modifications ?
Replies
13
Views
3,060
mlucitt
R
Help troubleshooting WOPL 400
Replies
12
Views
2,008
laatsch55
G
Power transistor help
8 9 10
Replies
195
Views
24,501
gene french
mlucitt
Goldpoint Stepped Attenuators
2
Replies
29
Views
4,342
laatsch55
Dr12volt
I just purchased a PL 400 Series 2 amp but have 85 volts AC on output with no input
Replies
18
Views
2,437
Dr12volt
Dr12volt
Phase Linear 400 series 2 potentiometers
Replies
4
Views
1,030
Gepetto
M
Specifications
Replies
13
Views
2,190
J!m
AvSat44
PL-400, Q8 and Q9
Replies
13
Views
2,708
laatsch55
laatsch55
Phase Linear 700 Series II Clair Bros Serial Numbers
2 3 4
Replies
64
Views
20,045
Randall Daniels
J
Early, Clean PL 400 - S/N 942-166
Replies
5
Views
1,368
Northwinds
J
Sick Clair 700 Series II
2 3
Replies
44
Views
6,813
jimcomly
P
New to me PL400 - how to start up?
Replies
4
Views
1,317
FredR
R
I found a PL400II while starting to pack to move. Need a faceplate, anyone have something?
Replies
10
Views
2,661
master
mlucitt
PL700 Series II Lessons Learned
2
Replies
35
Views
7,091
J!m
kwingylee
Phase Linear Newbie
2
Replies
29
Views
5,860
George S.
C
WOA PL400 output
Replies
6
Views
1,804
laatsch55
R
Wopl 700 series 2 with a slight buzz at midrange speakers
2
Replies
26
Views
5,865
Gepetto
wattsabundant
Early 400
Replies
4
Views
1,497
wattsabundant
mlucitt
It Can Happen To You
Replies
16
Views
2,029
Mohawk
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