Cannot locate a replacement needle without a make. Can you help? I have the number on the needle being T50HD. Is it ceramic or magnetic? I also need a manual. Thank you

As it was purchased second-hand, I would replace the cartridge and stylus with a new one anyway. You can put the model number of the cartridge (found on it) into Google search. That should come up with the right one. You can basically fit most types of cartridge, as long as the you get the right type. IE: A magnetic one if the unit has a cartridge pre-amp built into. Or the Ceramic type etc if it hasn't.

Without the brand and model number, it is difficult to answer your question. There should be a reference number somewhere in your stove top. That would be your starting point, and from there, seek the needed info using the model number and make. Try a new ceramic burner assembly at that location....it's plug and play.

It's not a ceramic capacitor. It's an MOV, [Metal Oxide Veristor]. A protection device. If the set has no other faults, even without this MOV, it should turn ON. If not, contact any service technician. google.com/+GopakumarGopalan

If the turntable's cartridge/needle are "magnetic", you need an amplifier with a "PHONO" input. Most new amplifiers do NOT have one, as that stopped when CDs began replacing LPs decades ago. Since the reemergence of LPs, some expensive amps have added a PHONO input again. Only really cheap turntables have CERAMIC cartridge/needles (usually under $100), which work fine with any amplifier input but are of a much lower quality than magnetic. Places like Radio Shack and The Source sell inexpensive Pre-amplifiers for this task of increasing the sound level and correcting the frequency response to RIAA standards. The latest turntable I bought had a Preamplifier built in plus a USB connection for converting LPs to Digital.

when you said "no sound enough to enjoy listening" did you mean that you could hear something coming thru the speakers, but it isn't loud enough? if so, you may be plugging the turntable into a "ceramic" phono input on your stereo. it may be that your stereo doesn't have a pre-amplifier on the phono inputs. Ceramic tonearm cartridges (the part that holds the stylus - which you may call the needle) have enough output level to drive an amplifier. if your cartridge is magnetic, the output is very low compared o the ceramic. the trade off is that magnetic cartridges have a much wider dynamic range than the ceramic, and when properly pre-amplified, sound MUCH better than a ceramic unit. you can probably find a separate pre-amp at radio shack (i know they sold them several years ago). you plug the turntable into the inputs of the pre-amp, then plug the pre-amps output into your stereo. hope this helps.

In reference to the question -
" what does cera and mag on the back of the mixer mean? "
these jacks are for the input of phonograph record cartridge signals.
Phonograph cartridges are of two types -
1. "Cera"mic (ceramic) cartridges generate their signal using a ceramic crystal which provides almost 1/2 a volt of current.
2. "Mag"netic (magnetic) cartridges generate a more accurate signal than a ceramic cartridge but the magnetic cartridge generates its signal using a moving-magnet mechanism (rather than a ceramic crystal) and the magnetic cartridge generates much less current than a ceramic cartridge, so its signal needs a lot more amplification than a ceramic crystal's output. So the two jacks on the back of the mixer provide different levels of amplification for the phono cartridges, less amplification for a ceramic cartridge and more amplification for a magnetic cartridge.
Since few people play phonograph records any more it is understandable that the public has little knowledge of the differences between ceramic and magnetic cartridges. But each have their own benefits and usually ceramic cartridges are cheaper than magnetic cartridges simply because it takes a lot more sophisticated manufacturing technology to make a magnetic cartridge, though magnetics are usually preferred over ceramics because of their more accurate generation of a signal from the wiggling groove in a phonograph record. But for those who can hear, the complete sound signal from a phonograph record is much preferred over the dead and dry sampled sound from a digital CD. And the old 1/4" reel-to-reel tape recordings are the highest sound quality of all because they are direct copies of the original magnetic tape masters with no digitizing at all. The fullness of their sound is astounding compared to any digitized signal..
A mag input is down at the mic level.
A ceramic input is almost up at the line level.

You will need a very old type of cartridge called CERAMIC CARTRIDGE or CRYSTAL CARTRIDGE. It has been discontinued. Today's Hi-Fi use magnetic cartridge. Check out this link below
http://www.kabusa.com/frameset.htm?/phoncart.htm

The bearing needs to be pressed onto the ceramic shaft before inserting the impeller into the housing. Then it just drops in (while trying to hold on to it the best you can to keep it from slamming in.). New bearings didn't come with the new impeller? If not you will have to carefully pry out the old bearing from inside the housing.

The magnetic cartridge preamp should work with the turntable, as presumably it will have a magnetic cartridge in it. The only reason that the amp states "magnetic" is that some very old turntables have ceramic cartridges which should not be connected to that terminal. Even if the turntable had a "ceramic" it could be replaced with a magnetic one!

I can't see anyone still making a 40 year old turntable arm. You could get a replacement cartridge for it. You might need either a ceramic or magnetic one, depending on the pre-amp of the RCA.