UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

BodgerBash · 5th Jul 2019, 3:16 pm

Hi All, my first post....
I have an old Fidelity HF42 record player, producing no sound. Upon investigation I found a 330uF capacitor was duff, so replaced it (I only had a 220uF one) and now the speaker responds to me touching the cartridge input, i.e. I now hear mains hum. I figured that I had fixed it, but touching the stylus results in nothing, I expect a brushing sound. So, is the stylus duff or the amplifier not producing enough gain?
I don't know anything about ceramic cartridges, but would you expect to see a voltage spike being produced if you touch the stylus?
Any ideas please?
Thanks BB.

5th Jul 2019, 3:16 pm	#1
BodgerBash Retired Dormant Member Join Date: Jul 2019 Location: Gloucester, Gloucestershire, UK. Posts: 3	Fidelity HF42 Hi All, my first post.... I have an old Fidelity HF42 record player, producing no sound. Upon investigation I found a 330uF capacitor was duff, so replaced it (I only had a 220uF one) and now the speaker responds to me touching the cartridge input, i.e. I now hear mains hum. I figured that I had fixed it, but touching the stylus results in nothing, I expect a brushing sound. So, is the stylus duff or the amplifier not producing enough gain? I don't know anything about ceramic cartridges, but would you expect to see a voltage spike being produced if you touch the stylus? Any ideas please? Thanks BB.