TSE Heater 300b - diyAudio
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Old 2nd April 2013, 01:14 PM   #1
Green77 is offline Green77  Sweden
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Default TSE Heater 300b

Hi all!

Time to take care of my hum problem when my TSE (300b) is cold. I have discust this with you here before
but haven't done anything about it.

I will install a new trafo for the heater to the 300b. 5842 will be connected as today.

Thinking like this:

Click the image to open in full size.

But should my new heater circut be connected to TSE ground? Or should they "live" there own life?

Regards //Daniel
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Old 4th April 2013, 02:14 AM   #2
rknize is offline rknize  United States
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Yes, because the heater is also the cathode on DHTs. I notice you are using the LM317 as a current-regulated power supply. Don't some 300B's have different current requirements on their heaters?
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Old 4th April 2013, 03:17 AM   #3
Green77 is offline Green77  Sweden
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Thanks. I will try this tomorrow.
I will use lm338, hope this works better in my TSE.

Regards //Daniel
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Old 8th February 2014, 10:39 AM   #4
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Quote:
Originally Posted by Green77 View Post
Thanks. I will try this tomorrow.
I will use lm338, hope this works better in my TSE.

Regards //Daniel
What´s about your DHT?
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Old 8th February 2014, 11:21 AM   #5
Green77 is offline Green77  Sweden
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Hi

I haven't done it yet, some other amps slipp in between
But i have all the part and have done a small pcb so it will be done
soon.
Regards// Daniel
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