Скачать или смотреть Hickok 6000 Tube Tester Restoration - Complete Calibration Part 1 of 2

This video starts the two parts series in the bigger Hickok 6000 restoration project. Having repaired the unit and conducted a functional demonstration we begin with the calibration procedure. This test will be conducted in accordance with the procedure as shown in https://tubesound.com/hickok-6000-cal...

The first order of business will be the turn-up of the unit and allowing the tubes to come to temperature. and conduct the short lights test, which i find somewhat limited, but continued on anyway. This is only done with the cathode and suppressor.

The Second test will be the voltage test of the meter at half deflection, ensuring that 50% shows 58.25 by way of the top adjustment. This pot required cleaning and was not in a good way. A stand was assembled during this test to ensure that gravity would not effect the reading.

The next test determines the 2.5vac given the needle exactly on line test as shown on pins 5 and 8. All configs will be done with a config for a 6L6 so it will be config used as such. The second pot is adjusted to bring this into spec.

For the next tests we need to adjust for not having 1000ohm/V volt meter so there will be different shunts for different tests. Some, more creative than others.

The next test will be connected across pins 3 and 8 for the plate voltage for a value of 150v +/- 3V This only works with the shunt in place as specified in the video. The high screen test is done next on pins 4 and 8. This though produce 135v +/- 3V.


The rest of the calibration is in part 2