02-12-2013, 03:16 PM
codefox1 / Jerry - Funny, it LOOKS you are speaking English, obviously I'm going to have to read up a bit more before going forward so that I understand the terms etc. and how to use the sig-gen etc. thank you for the advice. I will probably need to join the MI club Ron suggested as well. Also, I have an old electronics book from the 50’s that I’ve been using as a reference; it explains all the components that are in the radio which is a great resource as well. I do have an analog meter I can use once my sig-generator comes in.
Steve - I did end up winning that sig-gen on ebay, thanks for the link! Should be here next week.
morzh / TA Forbes – In reference to your Q about the electrolytics on top (#53/#54 the 8 ufd caps) Yes, I did replace those two. They both had the negative coming off a tab that was pinched between the can and the cardboard tube and I replaced them the same way. I’m at work now, but will double check the insulation on the #53 and #54 negatives when I get home to be sure they are properly insulated and not accidentally touching ground, thanks for the tip about the relative charges.
morzh – Your Q about “Have you tried to do the test where you touch the grids with a screwdriver and try to hear the buzz?” Not sure how to do that. Is there a video showing this on youtube?
Morzh / Arran – #40 the triple electrolytics 1uf / 1uF / 2uF I’ll check the wiring and get back to you. Do you think that 450 voltage rating would be enough for these caps? I think that’s what I have.
codefox1 – That sig-gen I bought on ebay looks like it’s from WWII (the seller said it was his grandpa’s and he didn’t know what it was for) plus it’s army green, so just putting 2 and 2 together on this one. Anyway, when I changed the caps/resistors on the radio I used schematics to show me the proper capacitance/volts/ohms etc. hopefully I’ll be able to read the colors of the resistors or the descriptions on the caps in the sig-generator, otherwise you’ll see a whole new ‘thread’ starting on this phourm . I don’t know where I would get a schematic for the sig-generator…?
Steve - I did end up winning that sig-gen on ebay, thanks for the link! Should be here next week.
morzh / TA Forbes – In reference to your Q about the electrolytics on top (#53/#54 the 8 ufd caps) Yes, I did replace those two. They both had the negative coming off a tab that was pinched between the can and the cardboard tube and I replaced them the same way. I’m at work now, but will double check the insulation on the #53 and #54 negatives when I get home to be sure they are properly insulated and not accidentally touching ground, thanks for the tip about the relative charges.
morzh – Your Q about “Have you tried to do the test where you touch the grids with a screwdriver and try to hear the buzz?” Not sure how to do that. Is there a video showing this on youtube?
Morzh / Arran – #40 the triple electrolytics 1uf / 1uF / 2uF I’ll check the wiring and get back to you. Do you think that 450 voltage rating would be enough for these caps? I think that’s what I have.
codefox1 – That sig-gen I bought on ebay looks like it’s from WWII (the seller said it was his grandpa’s and he didn’t know what it was for) plus it’s army green, so just putting 2 and 2 together on this one. Anyway, when I changed the caps/resistors on the radio I used schematics to show me the proper capacitance/volts/ohms etc. hopefully I’ll be able to read the colors of the resistors or the descriptions on the caps in the sig-generator, otherwise you’ll see a whole new ‘thread’ starting on this phourm . I don’t know where I would get a schematic for the sig-generator…?
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