[Boatanchors] type 83 mercury vapor tube

[Robert]

Joe, I've one (Hickcock 752) also. A while back I did have to replace my 
#83 tube, but I always wanted to know if there was a practicable way to 
solid state that circuit and regulate it accordingly to the testers's 
spec maintaining tube testing accracy. Seems as if therehas  to be a 
good way to accomplishthat, maybe something someone else as already done.

73 Robert W4RL


On 3/6/2013 6:29 PM, Joseph Trombino, Jr wrote:
>
>
>> I just opened up my Hickcock 752 tube tester and turned the lights off in the shack to observe the 83 mercury vapor after a several minute warm-up period.
>>
>> I saw NO blue haze that is typical of mercury vapor tubes.
>>
>> I am fairly sure this indicates a bad tube....but ask if any of y'all have seen the same thing in a GOOD type 83 tube.....that is NO blue haze but the tube is still good.
>>
>> If the tube is bad I wonder if anyone has a spare to sell...I've seen prices upwards of $50 from on-line vendors.
>>
>> Also interested if any one has successfully used a solid state replacement for the 83 tube in the Hickcock line of tube testers??
>>
>> Many thanks for you comments/observations.
>>
>> 			73, Joe W2KJ
>>
>
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