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Old 25th Feb 2012, 8:16 pm   #10
Don_Zalmrol
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Join Date: May 2009
Location: Ghent, Belgium
Posts: 273
Default Re: Philips B6X12A on the fritz…

Looking again at my radio I see that all of the aluminum capacitors all have punctures in their soft rubber seals, so also better replace them.
The other capacitor all seem to be in top notch/ decent condition without any leakage or cracks in them…

With the link from Roffe I've translated some of the changes the Chinese owner made to his B6X12A and I will do these also, since you clearly can see the wear and tear on some of the resistor on the end-side of the HT audio circuit (R63-R64 both are 1K8)

R1 and R66 are metal film oxide resistors because Distrelec only have those in the 4W area…

However the Chinese owner changed R1 to 4 resistors in series of each 33 Ohms 10 Watts. Should I do the same thing or is the 4W metal film oxide resistors enough?

This is my order list so far…
  • Aluminium electrolytic capacitors radial 47 uF 350 VDC
  • Aluminium electrolytic capacitors radial 10 uF 350 VDC
  • Aluminium electrolytic capacitor, axial 10 uF 350 VDC
  • Aluminium electrolytic capacitor, axial 22 uF 250 VDC
  • Aluminium electrolytic capacitor, axial 10 uF 63 VDC
  • Aluminium electrolytic capacitor, axial 220 uF 10 VDC
  • Metal film resistor 1K8 3 W 5 %
  • Metal film resistor 82R 3 W 5 %
  • Metal oxide film resistor 120R 4 W 5 %
  • Metal oxide film resistor 10K 4 W 5 %
  • Metal film resistor 2K2 3 W 5 %

Cheers,

Laurens
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