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Old 13th Nov 2007, 8:02 pm   #17
Aerodyne
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Join Date: Jun 2004
Location: Hampton Vale, Peterborough, UK.
Posts: 1,698
Default Re: Test equipment for valve radio repair

Here's my brief suggestions: Build yourself a safety series lamp for testing sets, if you haven't already done so. IMHO the test lamp is superior to the much vaunted variac and it is certainly much cheaper. Ideally, both a good analogue meter - say, a model 8 Avo - and a DMM both have their uses. The former is good for watching changes in voltage or current, such as when aligning for signal strength (the reading on the DMM tends to jump about) but the DMM is quick and accurate and some can test capacitors - I use a capacitor test on new components before I fit them and use the Avo on high ohms to check old caps for leakage. A reasonable sig gen is very handy, too, but I use my scope only occasionally for radio work, though it was used a lot on colour TV servicing (years back!)
-Tony
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