Hello,
I am in the process of fixing my vintage Allied 333 Stereo Receiver and am having a hard time finding a replacement part for several capacitors that I need to replace (all being the same part number). I’ve attached a picture of the part with the identification number on it, but am having trouble deciphering it. It reads…
.05-M
400.811
Is anyone able to decipher the coding, with an end goal of determining an appropriate replacement capacitor?
Thanks,
Welcome to the forum dupackard!
I am currently looking into this at the moment. These are pretty unusual markings for a capacitor. The numbers could mean various things. The shape of it does seem to be a film type capacitor, but I have to try deciphering the ratings here. I will reach out if I find any pertinent information.
Thank you for your patience.
Thank you! I’ve got several of these in the unit and they all seem to be swollen/leaking.
IME, “.05-M” on old capacitors has always turned out to be 0.05uF (“M” was often used for micro in the old days).
Given the lack of choice in capacitors back when this was designed, and the non-standard packaging/labeling often used by capacitor manufacturers, I’d guess it’s a 0.05uF 400V ceramic capacitor.
0.047uF is a more common value and close enough for nearly all applications:
This 0.05uF part is available but I generally avoid Z5U ceramics in the 21st century.
I agree with Paul, these are probably going to be the closest items that we can offer. More than likely, getting an exact capacitance for something this old won’t be “critical” in most cases.
This is fantastic! I’ll order today and greatly appreciate the feedback from you both. Impressive!
Thanks,
