View Single Post
  #31   Report Post  
Posted to sci.electronics.repair
[email protected] tabbypurr@gmail.com is offline
external usenet poster
 
Posts: 12,364
Default HP 54111D dim display

On Sunday, 7 January 2018 02:31:27 UTC, Fox's Mercantile wrote:
On 1/6/18 6:28 PM, tabbypurr wrote:
On Saturday, 6 January 2018 21:41:07 UTC, Fox's Mercantile wrote:
On 1/5/18 10:31 AM, Terry Schwartz wrote:


I was familiar with the older method that used general purpose
tube testers with CRT adapters.

I killed my dim 12" CRT with a B&K Model 440
https://ssli.ebayimg.com/images/g/8S0AAOSw-W5UrXOP/s-l1600.jpg


I hear so many people killed their tubes. I wonder why, boosting heater voltage never caused me to lose one. And I pushed it all the way to 66% on occasion, and 33% routinely. I mean permanent boost.


NT


Failure to RTFM.
Rather that boost the filament voltage I hit the G1-K button.
It boosted it a bit so I hit a couple more times. The third time
killed it.


My point is why are you doing that in the first place? Why use a method that either kills or damages the tube and only has short term benefit anyway?


NT