Rod Beauvex
Look at the tiny bunny...
So, I've decided to try my hand at recapping (and replacing two diodes), seeing as I have something old and worn out to work on. But before I start, I need to be clear on a few concepts.
If anyone has a schematic, preferbly not for a clone, I would greatly appreciate it.
First, is there a difference between (V) voltage and WV (what I assume to be Working Voltage)? I have a bunch of caps in a Martel FAX-200, some just have V, others have WV on them. (150V, and 400WV, respectively)
Second. Some of these caps, which are small axial electrolytics, have uF (10uf, .001uf, .05uf) on them. Others, which are electrolytics, have MFD (these are the size of a half of a roll of pennies, and say 20MFD and 40MFD) printed on them. Shall I assume that uF means the same thing as MFD, as opposed to MFD being millifarads, or megafarads or something else?
Third, from what I read, it's OK to replace say, a 40uf at 150V capacitor with a 47uF @ 160V capacitor. But unless I shop at many different places, I simply cannot match every unit in here for an original. Will it do more harm than good to have every cap slightly above spec?
Fourth. I want to go ahead and replace the old rectifier diodes, which there are only two of. The most common one tossed around here seems to be the 1N4007, rated for 1A. In the apparantly unlikely even these are not available, Would putting anything else, like on rated for 2A work, or would that allow too much current on the circuit?
Thanks in advance.
If anyone has a schematic, preferbly not for a clone, I would greatly appreciate it.
First, is there a difference between (V) voltage and WV (what I assume to be Working Voltage)? I have a bunch of caps in a Martel FAX-200, some just have V, others have WV on them. (150V, and 400WV, respectively)
Second. Some of these caps, which are small axial electrolytics, have uF (10uf, .001uf, .05uf) on them. Others, which are electrolytics, have MFD (these are the size of a half of a roll of pennies, and say 20MFD and 40MFD) printed on them. Shall I assume that uF means the same thing as MFD, as opposed to MFD being millifarads, or megafarads or something else?
Third, from what I read, it's OK to replace say, a 40uf at 150V capacitor with a 47uF @ 160V capacitor. But unless I shop at many different places, I simply cannot match every unit in here for an original. Will it do more harm than good to have every cap slightly above spec?
Fourth. I want to go ahead and replace the old rectifier diodes, which there are only two of. The most common one tossed around here seems to be the 1N4007, rated for 1A. In the apparantly unlikely even these are not available, Would putting anything else, like on rated for 2A work, or would that allow too much current on the circuit?
Thanks in advance.
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