Hickok 6000a Mutual Conductance Tube Tester - Calibrated - Late Model & Manuals

US $628.88

Kirkland, Arizona, United States
Feb 22nd

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Hickok 6000A Mutual Conductance Tube Tester - Calibrated - Late Model & Manuals Hickok 6000A Mutual Conductance Tube Tester Calibrated and in Excellent Working Condition All Voltages Within SPECS that can be seen in the pictures below. All tests were done with the correct shunt resistor to duplicate 1,000 Ohms/Volt Meter. Picture 3 shows the AC signal voltage 2.50 SPEC is 2.5 +- .2 Picture 4 is the plate voltage of 152.5 SPEC is 150 +- 5 Picture 5 is the screen voltage of 135.3 SPEC is 135 +- 2 Picture 6 is the low screen voltage of 56.4 SPEC is 56+- 2 Picture 7 is bias voltage at 100 which is -39.1 SPEC is -40 +- 2 Picture 8 is bias at 22 which is 3.33 SPEC is 3.3 +- .2 Picture 9 shows the filament voltage with the tube in the socket at 6.14 which there is no SPEC for, but critical to get accurate test results. Many Hickok testers can be calibrated, but the heater voltage drops below 6 volts when a tube is in the socket causing in accurate test results. Picture 9, 10, and 11 show a 6L6 calibration tube with Gm of 5475 being tested with the same results of 5475. The needle is between 5450 and 5500 on the tester. Please look at the pictures and ask any questions. The tolex is not in great shape but the case is solid. The shorts test is automatic and works. The 83 and 5y3GT are as good as new and balanced. This tester, with the tube plate currently on it, cannot test older tubes such as the 4 pin. Please be sure you know if this tester will work for your needs. If you can find a tube plate for a 6000, you will be able to test the older tubes with this tester as well. This is a later version of the 6000A that came with a newer style meter, an adjustable pot on the meter, that has never been adjusted, an adjustable pot, R17, for the signal and plate voltage, which makes it a lot easier to calibrate than earlier models. The roll chart is dated 1968. Information including calibration procedures, and updated tube data are readily available at no charge at Bama and elsewhere. Please ask any questions and look at the pictures for details. Must read and agree to terms below: Please note and understand that there are no returns on this tester, all sales are final. If you have an issue upon receiving please notify me immediately. This tester is at least 45 years old and should last another 50 if used and maintained properly, but if directions are not followed and someone tries to test a shorted tube e.g., any tube tester can be destroyed in a second. I cannot be held responsible for someone's error. We warrantee and represent that the goods are as described in the above listing. We specifically disclaim any implied warranties of title, merchantability, fitness for a particular purpose and non-infringement. Customers should satisfy themselves that any item choice made is suitable for their intended purpose or use. If an item is sold with no returns accepted as its terms then we will not accept returns on that item unless we made an error in the listing. Genuinely faulty goods will be replaced or money refunded, however we must be advised of any faulty goods upon receipt of the item. It is the customers responsibility to pay for and ship the item back to us. If the item is found to be faulty, we will also refund the postage cost. Most of the items we sell are vintage and for this reason returns are not generally offered.

Condition	Used : An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections.
Seller Notes	“Excellent Working Condition with PICs of voltage Specs and Calibration tube being tested.”