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Hickok Model 752-A Laboratory Model TUBE TESTER in Exc Condition / needs Meter
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Hickok Model 752-A Laboratory Model TUBE TESTER in Exc Condition / needs Meter
Price: US $317.66
One of Hickok\'s best models .. often described as a \"laboratory model\". Comment from the Tube Wizard website ... \"These are the famous FAA testers. The 752 is a beautiful machine . The \"A\" model has the 9 and 12 pin compactron sockets and is more money. The best feature of the 752\'s is the dual triode test buttons-you can test both halves of a twin triode without re-setting the selectors. This is a must, if you test a lot of 12AX7\'s!\" ... This model will test most of the small transmitting tubes (under 25 watts), voltage regulator tubes, the old large pin tubes from the 20\'s, 30\'s, plus all 40\'s, 50\'s & early 60\'s tubes. The 750 and this 752/A replaced all the 500 and 600 series testers in the early 1960\'s. The 752-A has 4-5-6-7 pin, octal, loctal, 7 & 9 pin minature, acorn, subminature sockets, 9 pin and 12 pin compactron, 10 pin decal, and both types of nuvistor sockets.

It\'s in VERY nice condition ... original fabric covered case is way better than usually seen ... some very minor spots and but generally in great shape. The panel is super clean .. the roll chart moves smoothly and the tester was working [with a sticking meter] ...... That\'s all the good news ... On the downside, I made the serious error of having an unqualified guy work on the sticking meter .. results: A now dead meter with a bent pointer.

It will likely require a new meter as I doubt this one is now fixable. It does \"quiver a bit\" but the bent needle prevents it from moving and the meter adjust screw on the front of the case now does nothing! New meters are available from: http://www.alltubetesters.com/parts.htm ... Comes with the ORIGINAL instruction manual, obsolete and foreign tube roll chart supplement books It measures approx 17\" X 8\" X 19\" deep and very well packed shipping weight will be 28 pounds from zip code 24012. Shipment will be via Insured FedEx Ground in the US.

FEATURES: .... Checks mutual transconductance for tube quality test which is the most reliable test known. ... Meter has only one scale which makes it easier to read than most other Hickok testers. A mutliplier switch is set rather than using several meter scales. ... Handy \"Plate 2\" button allows for testing double section tubes without resetting selector switches. .... Meter and roll chart are backlit....another feature not found on most Hickok checkers. This feature really makes the tester a joy to use in darker rooms. ..... #49 light bulb acts as a bias fuse to protect the sensitive bias poteniometer. ... 2 plate voltages available. ... Life Test button ..... Terminals for attaching external self bias resistor. ... Shorts and leakage are indicated on the meter rather than a less reliable neon bulb. .... Sensitive gas test .... Model 752 has 4-5-6-7 pin, octal, loctal, 7 & 9 pin minature, acorn, and subminature sockets. The Model 752A has all of these sockets with the addition of 9 pin and 12 pin compactron, 10 pin decal, and both types of nuvistor sockets ....


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