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5F6A Bassman Thermal Image

Posted: Thu May 14, 2015 9:27 am
by robrob
I have a Seek Thermal Imaging camera for my Android phone so I thought I'd take a pic of the 5F6A '59 Bassman chassis at idle temperature so we can see what's hot and what's not. I was surprised to see the power tubes are hotter than the rectifier tube.

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1. V1 Load Resistors. 2. V2B Cathode Resistor. 3. Socket mounted V2A Load Resistor. 4. B+4 Voltage Dropping Resistor. 5. Phase Inverter Load Resistors. 6. B+3 Voltage Dropping Resistor. 7. Pilot Light. 8. Rectifier Socket mounted Backup Diodes and .01uF 3KV disk capacitor.

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Re: 5F6A Bassman Thermal Image

Posted: Thu May 14, 2015 9:40 am
by clipless bumper
cool - now crank it for 20-30 minutes and take another pic under power!!

Re: 5F6A Bassman Thermal Image

Posted: Thu May 14, 2015 10:57 am
by Tortuga
This is awesome! Gotta give that a try. What Android app did you use?

Re: 5F6A Bassman Thermal Image

Posted: Thu May 14, 2015 3:28 pm
by robrob
Seek Thermal has an Android and iOS app. It's a free download but it only works with their IR camera.