thermistor
-
SA-300 inrush limiter question
I have a heavily modified SA-300 from a top notch tech in Canada (Sams Audio). The rework is some of the best I've seen. All caps, rectifiers, sockets.. the works all neatly laid out. There issue is the GZ34 rectifier tubes are intermittently sparking on startup. New tubes did not solve the...- tutor_turtle
- Thread
- fisher gz34 inrush current inrush limiter sa-300 thermistor tube audio
- Replies: 6
- Forum: Fisher
-
Superscope R-1240/Marantz 1040: Thermistor Substitutes on output board
I have a superscope r-1240 and I am trying to replace a broken thermistor on the main amp board. The leads snapped off and there is no chance of resoldering them back to the component. (this is the same board that is on the marantz 1040) The location for these is H725/H726 in the schematic...- kasbah512
- Thread
- marantz 1040 superscope r-1240 thermistor
- Replies: 2
- Forum: Solid State
-
Pioneer Spec4
Hello, before I get to my problem I would like to say thank you to everyone for the absolutely valuable information posted here in this forum. I was able to fix a few great and old devices because of you experts. T H A N K Y O U !!!!! This is my first thread. (I'm from Germany so please...- Testadmin
- Thread
- circuit boards pioneer spec 4 thermistor
- Replies: 18
- Forum: Pioneer Audio
-
Selecting a NTC thermistor inrush limiter
Sorry folks, not strictly a tube audio issue, but my assumption is that folks here have some experience with it. The amp design I'm working on will have a B+ current draw of approximately 450mA (that's rounded up) at full power. At idle it's going to be around 240mA (again, rounded up). B+...- thorpej
- Thread
- inrush limiter power supply thermistor
- Replies: 44
- Forum: Tube Audio