Quote:
Originally Posted by hifim37
Hi everyone, I picked up a super clean 1964 roundie Curtis Mathes console, I'm thinking I might want to get this puppy back in service but the picture tube has a horrible discolorization ring around the screen and the neck plug is cracked so I'm thinking the picture tube is done, I also will have to re-cap the audio amplifier due to the famous 60 cycle hum, I have not messed with this stuff in years and I'm thinking it might be a cool winter project but as we are all on a budget I don't have to much $ to spend on this, if it becomes to much I have to make the terrible decision "to keep or not to keep"
BTY, I'm in Barstow Ca so I don't mind to much of a travel but with our lovely fuel costs ...... we'll see
Thanks !
Eric..
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The discoloration ring is called a "cataract" and it's very common.Many people have successfully removed them and it's been discussed many,many times here if you do a search.I wouldn't condemn that tube yet. My own Zenith 29JC20 has a crack in the base plug and has an excellent tube.
Unless the glass is cracked that tube may be still good.If you don't have a tester a continuity test might help determine if the tube is worth trying to save.If the filament is open it's probably gone to air since the filament burns out quickly in air. If it's good there's a slight chance it might be good but applying filament voltage or testing would help to further determine if the tube is worth saving.