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Blue flash in an AX50
Geschreven door Thierry Magis om 22. Apr 2001 20:52:46:
Hello !
A friend has give to me a lot of very old Philips amplifiers type 2844 , EL6420 , EL6435(searching diagrams of this model!). Some are in good condition , others quasi-totally destroyed . I try to repair all , i like their sound ...
I've got a problem with an EL6420 : one of the two AX 50 "flash" when there is high power output. The blue light is very impressive - but i don't like it too much ! When i invert the two valves of the voltage multiplicator , the problem stays in the same valve. I first think at problem with the smoothing capacitors , but they seems to be OK ... Is this flashing normal? Does it increase with the age of the tube? I know the AX50 are gas-filled , is there a loss of this properties?Thank you very much !
Greetings
Thierry