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sexton_mallard · 27th May 2019, 9:16 pm

This unit was another car boot find that cost me a quid. I had a clock radio as a present from when I was a kid and always wanted to own one again with a VFD. This specimen has a nice bright VFD which must have a similar phosphor to a EM84 from the phosphor fluorescence colour.

After basic lead and plug checks it powered up fine but the radio had no FM and a loud 50c/s buzzing on LW and MW. Must be mains smoothing then! By substituting a 1000mfd electrolytic cap on the end of meter leads I found the culprit, a 1000mfd 10v cap had dried out and corroded one of its leads. A replacement cap went in OK and a good clean of the case followed. Performance is good on all wavebands. The polystyrene/acrylic/polycarbonate faceplate appears to have been scrubbed with a scourer in the past and is a bit cloudy which does spoil the appearance considerably. I tried Cif/Vim/Jif which did not make much difference. I will carry on researching clear plastic restoration.

27th May 2019, 9:16 pm	#1
sexton_mallard Heptode Join Date: Sep 2013 Location: Ellesmere, Shropshire, UK & Co. Cork, Ireland. Posts: 501	Auritone 16D8 clock radio This unit was another car boot find that cost me a quid. I had a clock radio as a present from when I was a kid and always wanted to own one again with a VFD. This specimen has a nice bright VFD which must have a similar phosphor to a EM84 from the phosphor fluorescence colour. After basic lead and plug checks it powered up fine but the radio had no FM and a loud 50c/s buzzing on LW and MW. Must be mains smoothing then! By substituting a 1000mfd electrolytic cap on the end of meter leads I found the culprit, a 1000mfd 10v cap had dried out and corroded one of its leads. A replacement cap went in OK and a good clean of the case followed. Performance is good on all wavebands. The polystyrene/acrylic/polycarbonate faceplate appears to have been scrubbed with a scourer in the past and is a bit cloudy which does spoil the appearance considerably. I tried Cif/Vim/Jif which did not make much difference. I will carry on researching clear plastic restoration. Attached Thumbnails __________________ Dom Less snakes...more ladders! Last edited by sexton_mallard; 27th May 2019 at 9:22 pm.