[Test-Equipment] tube tester problem

[Ron Youvan]

   On 12/10/2015 10:20 AM, John K5PGW King wrote:

> I have a B&K 700 tube tester that isn't working correctly. All resistors have been checked and allelectrolytic caps have been replaced but it isn't working properly. It 
is doing the following:
> 1. When turned on, the meter needle stays to the left as it should.
> 2. With the selector in the correct position, when the test button is pushed with a tube installed,the meter goes negative to the left.
> 3. When the grid emission test button is pushed, the meter pegs completely to the right (maximum).
> 4. AS seven 6SG7 tubes are tested one by one, all test results are identical.
> The tube tester has a NEW rectifier tube and NEW 6BN8 tube installed in it.
> Anyone with a B&K 700 had such an experience such as this with the B&K 700 tube tester? What do you think?

   It seems like the meter connections have been reversed.
-- 
   Ron  KA4INM - Youvan's corollary:
                 Every action results in unwanted side effects.