by Ron Rich »
Wed Jul 22, 2009 6:19 pm
Sorry Les, but I dis-agree with replacing all tubes ! If you want, you could test all tubes, but remember that "tube testers" are designed to SELL tubes ! Any "shorted" tube should surely be changed, but tubes showing "weak" need to be compared with a new, known good one, on the SAME "tester", prior to changing.
"Soundless", Speakers do not amplify--they re-produce what ever the amplifier sends them, into sound. Since the radio functions, I would have to assume that the amplifier/speaker (and the "tuner") portion is operating. Needles do not usually "go dead". They usually loose the "point" or it gets "dull". Cartridges, on the other hand, do "die", however other things can cause "no sound", such as the needle not being installed correctly.
"Magnavox" never made tubes. They may have that word on them, but they were "made for " them by a (major?) tube maker. All tubes have a number on them, and will exchange with another brand having the same number 99.99% of the time.
Look in the phone book for a local "Electronic parts house" or "Radio/TV repair shop" and take your unit in if possible. They should be able to install a new needle, and check it out--it most likely also needs lubrication anyway. Ron Rich