Philco 37-610 tombstone restoration
Posts: 72
Threads: 2
Joined: Jan 2018
City: Madrid, Spain
I have got the grommets for the tunning unit and installed it, I decided to put power on the radio without the speaker with a variac and a amp meter to check any short or smoke, the power line have a fuse, I had no 115 volt 1amp fuse so I used a 220 @ 500mV, no tubes, after rissing slow the voltage the bulb at 30vac starts to glow, nothing seems to be bad...0,01 amp.After I install the rectifier only, 0,02 amp with 30v, 65vac and the ampmeter starts to rise slowy but steady, I touch the tube with gloves and can feel is really hot, the bad thing is that the amps went up more than 1 amp and blew the fuse....I replaced it and started again with 50vac this time (only 5Y4gt) the amps went to 0,6 and keep in there, I tried to check voltages underneath the chassis and tube sockets and I got only 3vac of the heater pins, nothing in caps, switch off, remove the 5Y and Test the rectifier socket, I got (with 30-40vac) the 5,5vac and 112vac....I am getting puzzled since the transformer was checked before and looked ok...all wires put in old places, surely I am doing something wrong since is my first tube radio but could be other thing?
Cheers
(This post was last modified: 04-04-2018, 12:22 AM by Jeepeto.)
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RE: Philco 37-610 tombstone restoration - by Jeepeto - 04-04-2018, 12:22 AM
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