Hi All,
Does anyone have a schematic diagram for the Orion XTR2500.4 amp?
It is a four channel Bipolar Transistor output section using TIP35C and TIP36C devices.
I am measuring +-53V on the rails and that means that the outputs are seeing 105V when the signal is at its maximum for part of the wave form. Is this not exceeding the VCEO 100V limit of the devices?
Likewise the drivers are TIP41C / TIP42C, am I missing something?
Thanks in advance!
Does anyone have a schematic diagram for the Orion XTR2500.4 amp?
It is a four channel Bipolar Transistor output section using TIP35C and TIP36C devices.
I am measuring +-53V on the rails and that means that the outputs are seeing 105V when the signal is at its maximum for part of the wave form. Is this not exceeding the VCEO 100V limit of the devices?
Likewise the drivers are TIP41C / TIP42C, am I missing something?
Thanks in advance!
Conclusion
The intent of this post is just to document what I observed with this amp for others and future reference. The drivers and output devices were changed and the amp was working normally.
With 15.0V input, the rail voltages was +68.5V and -68.5V, so the driver and output devices saw 137V for a brief time and then it dropped down to 135V after a couple of seconds.
The amp performed as expected and was tested to thermal cycling that started from about 90 degree Celsius.
The intent of this post is just to document what I observed with this amp for others and future reference. The drivers and output devices were changed and the amp was working normally.
With 15.0V input, the rail voltages was +68.5V and -68.5V, so the driver and output devices saw 137V for a brief time and then it dropped down to 135V after a couple of seconds.
The amp performed as expected and was tested to thermal cycling that started from about 90 degree Celsius.
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