Heifetz Posted May 9, 2017 Posted May 9, 2017 Item: FozgometerLocation: Burwood East, Melbourne EastPrice: $290Item Condition: As New in Original Box - used a few times onlyReason for selling: funds for other equipt.Payment Method: Pickup or by mail - PaypalExtra Info: I have the test tones on a CD which will be sent alongside the Fozgometer - or you can download them. The FOZGOMETER represents a breakthrough for adjusting phono system azimuth. To obtain high performance from a modern phonograph system, the tonearm and pickup cartridge must be properly adjusted to within a few thousands of an inch. There are several alignment gauges available to adjust overhang and offset. To adjust cartridge azimuth (Axial Tilt), it has been necessary to use lab quality equipment and a test record. Azimuth may be adjusted using an oscilloscope, AC voltmeter, or computer program. These methods can be expensive and time consuming. The FOZGOMETER represents a breakthrough for adjusting phono system azimuth. The FOZGOMETER incorporates a "Log Ratio Detector" developed for surround processor steering logic circuits to measure channel separation over a wide range of signal levels down to -70 dB. The readings are virtually independent of overall signal levels, and can be made with a wide range of input signals without effecting accuracy. The Fozgometer is a small portable battery powered unit that is used in conjunction with a test record. It measures channel separation, channel balance, and signal direction quickly and accurately. Readings are taken without touching the meter, leaving your hands free to work with the tonearm. The meter reads channel separation in both directions, and channel balance. The LED's indicate Left, Center, and Right signal (test tone) positions. *Note: A Test LP is required. If you don't have one please view the HiFi News Test Record.Stereophile Recommended Component and TAS Recommended Component Pictures:
andyr Posted May 10, 2017 Posted May 10, 2017 1 hour ago, thewaves said: I will give it a crack, PM coming. I find it a worthwhile tool - if you have a UP arm. IMO you get the best result if you take the output from your phono stage ... not directly from the cartridge. Andy
tubularbells Posted May 11, 2017 Posted May 11, 2017 On 2017-5-10 at 11:01 AM, andyr said: I find it a worthwhile tool - if you have a UP arm. IMO you get the best result if you take the output from your phono stage ... not directly from the cartridge. Andy Thats an interesting idea and can see how it would assist in correcting an unbalanced phono however doesn't the phono output overload the foz cct. as its intended for micro level signals? Also if for example my phono was grossly imbalanced so I corrected using this method wouldn't I be putting my LP's at risk of groove damage caused by a skewed cartridge?
SteveC Posted May 11, 2017 Posted May 11, 2017 I just love the name Fozgometer. Sounds like something made up in a cartoon. I know I'm a child....
andyr Posted May 11, 2017 Posted May 11, 2017 35 minutes ago, Tubularbells said: Thats an interesting idea and can see how it would assist in correcting an unbalanced phono however doesn't the phono output overload the foz cct. as its intended for micro level signals? Also if for example my phono was grossly imbalanced so I corrected using this method wouldn't I be putting my LP's at risk of groove damage caused by a skewed cartridge? I think you are confused by two different devices - both engineered by Jim Fosgate, I believe: the original Fozgometer - shown in the pic, and a new device - also, I believe, known as the 'Fozgometer'! #1 is a measurement device - it tells you (by measuring crosstalk) whether the stylus is perpendicular to the groove or not. It doesn't, per se, "correct" anything - it merely (with the LEDs and the meter) enables you to optimise your azimuth. And no, the output from a phono stage does not overload it. #2 is a device which you put in circuit between your cart and your phono stage, which enables you to further optimise - on the fly! - your azimuth. I'm not exactly sure how it works - all I read was that you keep it in circuit. It seemed to be a device which electronically minimises crosstalk when you have an arm which is not able to physically adjust azimuth (ie. a non-UP). Andy
tubularbells Posted May 11, 2017 Posted May 11, 2017 3 minutes ago, andyr said: I think you are confused by two different devices - both engineered by Jim Fosgate, I believe: the original Fozgometer - shown in the pic, and a new device - also, I believe, known as the 'Fozgometer'! #1 is a measurement device - it tells you (by measuring crosstalk) whether the stylus is perpendicular to the groove or not. It doesn't, per se, "correct" anything - it merely (with the LEDs and the meter) enables you to optimise your azimuth. And no, the output from a phono stage does not overload it. #2 is a device which you put in circuit between your cart and your phono stage, which enables you to further optimise - on the fly! - your azimuth. I'm not exactly sure how it works - all I read was that you keep it in circuit. It seemed to be a device which electronically minimises crosstalk when you have an arm which is not able to physically adjust azimuth (ie. a non-UP). Andy Well im confused then as mine looks exactly the same as per the pic and the instructions specifically state using direct from the cart o/p. Anyway I reckon there a useful device and for the price asked for here is a must have for those with the vinyl affliction.
andyr Posted May 11, 2017 Posted May 11, 2017 2 minutes ago, Tubularbells said: Well im confused then as mine looks exactly the same as per the pic and the instructions specifically state using direct from the cart o/p. Anyway I reckon there a useful device and for the price asked for here is a must have for those with the vinyl affliction. Mine is also the same as the pic. And I use it from the phono stage out. Try it!! But, again, it does not "correct" anything. You plug the phono stage (or the cart, in your case) into it and adjust azimuth until you get an even reading on the meter in both channels. Then you remove it and connect the cables to give you music. Andy
tubularbells Posted May 11, 2017 Posted May 11, 2017 1 minute ago, andyr said: Mine is also the same as the pic. And I use it from the phono stage out. Try it!! But, again, it does not "correct" anything. You plug the phono stage (or the cart, in your case) into it and adjust azimuth until you get an even reading on the meter in both channels. Then you remove it and connect the cables to give you music. Andy Ok thanks, will give it a try then as per your suggestion and see what happens. My Cadenza Black needed a shim on the RHS to get perfect alignment but my current AT Art9 cart was good to go straight up.
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