|
|
|
|
|
#1
05-11-2019, 11:39 AM
|
||||
|
||||
|
According to this page: https://en.wikipedia.org/wiki/Phosph...phosphor_types it is a radar tube with blue phosphor with yellow persistence.
It would probably suck for TV usage. Maybe he wanted to build an oscilloscope or something.
__________________
Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4 
|
|
#2
05-12-2019, 07:09 PM
|
||||
|
||||
|
Yeah, a 7BP7 would never be used in a TV.
|
|
#3
05-12-2019, 07:56 PM
|
||||
|
||||
|
If he also had a 621, the 7BP7, which uses magnetic deflection and focus, could be made to function in that set... a blue filter could be used to remove the yellow-green long persistence component, leaving a blue image, which might be semi-watchable. Since 7DP4s are fairly scarce, blue is better than nothing.
jr
|
 |
| Thread Tools | |
| Display Modes | |
|
|
Hybrid Mode
