[Amps] Bird Termaline 694 Wattmeter Query
Jim Smith
jimsmith at shaw.ca
Mon Aug 5 01:46:15 EDT 2013
There was a very detailed article on repairing Birds in NCJ a while back
- may have what you want
73, Jim VE7FO
On 2013-08-04 14:02, w2cqm at juno.com wrote:
> I have a 1000w metered Bird Termaline #694 oil filled wattmeter that is not reflecting accurately the power output level. When contrasted against another calibrated 1000W device, the Bird registers about 800W. The non-inductive load measures a perfect 50 ohm input so the problem lies elsewhere. The factory manual indicates that there are no means available "in the field" to adjust the internal circuitry for proper calibration. I'm not certain if that is a veiled invitation for the need to send it back to the factory for big bucks servicing. Radio amateurs are well known for their ability to overcome a whole range of obstacles, consequently, this posting is made in the hopes of finding a solution if any to the calibration problem. Any assistance would be greatly appreciated. Ron W2CQM/3
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