Quote:
Originally Posted by astral highway
Quote:
Originally Posted by Station X
If you want more test gear invest in a signal generator. As for valve testers, scopes etc. forget them. They rarely need to be used.
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Hmmm... but the OP was about 'getting more scientific.' Arguably, a 'scope is an inevitable essential if you want to do this. |
If you are going serious about any restoration, you have to have the correct equipment. You may be able to find faults with just a multimeter,but you wont be able to do a full test.
You need a power output meter,and a calibrated signal generator,(to do accurate alignment and sensitivity checks)
You also need a RC bridge, to check capacitors,and also a insulation tester,to check capacitors and other checks.
A valve tester would come next, an oscilloscope may be usefull if it had a frequency meter.
With this equipment, a set can be restored to proper working condition.
All capacitors need to be checked for capacity and leakage at the working voltage,(you cant check leakage with a multimeter) valves should be checked for emission etc,if the overall sensitivity check shows low, if sensitivity check should be better than 39uv for 50mw output) for 1 if stage,but see service sheet.