Home |
Search |
Today's Posts |
#1
![]() |
|||
|
|||
![]()
Hi, gang! Anybody have any good, BRIGHT 6U5 eye tubes? I need two. Please
contact me directly, off-reflector. 73, Sandy, AC1Y Alexander N. Gerli 949 Hopmeadow St., Apt. 2 Simsbury, CT 06070-1853 |
#2
![]() |
|||
|
|||
![]()
Alexander Gerli wrote:
Hi, gang! Anybody have any good, BRIGHT 6U5 eye tubes? I need two. Have you taken a second mortgage, yet?? |
#3
![]() |
|||
|
|||
![]()
How much are they going for?
|
#4
![]() |
|||
|
|||
![]()
"Nc183d" wrote...
How much are they going for? I have some (about 10) at $29.50 and 3 at $32.50; all are new. I also have some new but lower brightness for $11.50. Jim McShane Need Tubes? Got a H-K Citation (Pre) Amp? Check http://pages.prodigy.net/jimmcshane Repro knobs for Citation gear in stock! |
#5
![]() |
|||
|
|||
![]()
Jim McShane wrote:
"Nc183d" wrote... How much are they going for? I have some (about 10) at $29.50 and 3 at $32.50; all are new. I also have some new but lower brightness for $11.50. Anyone tried using a CRT rejuvinator on these to improve cathode emission? --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#6
![]() |
|||
|
|||
![]()
Doesn't a CRT rejuvinator tend to "zap" the tube with high voltage? Wouldn't
this tend to fry the tube? |
#7
![]() |
|||
|
|||
![]() "Scott Dorsey" wrote Anyone tried using a CRT rejuvinator on these to improve cathode emission? *** IMO the most common failure mechanism is not lack of cathode emission but lack of light emission from the target.A simple test to carry out on a low light output eye is to increase the heater Voltage while it is operating,most times there will be no increase in light output. Brian Goldsmith. |
#8
![]() |
|||
|
|||
![]()
In article ,
Nc183d wrote: Doesn't a CRT rejuvinator tend to "zap" the tube with high voltage? Wouldn't this tend to fry the tube? What does "fry" mean? The CRT rejuvinator applies a very short pulse of a very high voltage with the cathode positive, in order to clean the passive oxide layer off the cathode. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#9
![]() |
|||
|
|||
![]() "Brian Goldsmith" wrote in message ... "Scott Dorsey" wrote Anyone tried using a CRT rejuvinator on these to improve cathode emission? *** IMO the most common failure mechanism is not lack of cathode emission but lack of light emission from the target.A simple test to carry out on a low light output eye is to increase the heater Voltage while it is operating,most times there will be no increase in light output. Brian Goldsmith. The phosphor is damaged by ion bombardment. Older eye tubes will have targets that look dark or streaked. You can boost the the B+ voltage on the target to get some more life out of the tube.. pete |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
2 Meter Beam 4 element design wanted | Antenna | |||
WTD: Yaesu FT767GX PSU board wanted | Antenna | |||
Wanted: 23cms preamp and linear amplifier | Antenna | |||
WTD: TECH MANUAL WANTED | Antenna | |||
R1155 WANTED | Boatanchors |