Cory Smelosky <b4 at gewt.net> writes:
On Fri, 4 Oct 2013, Sampsa Laine wrote:
sampsa <sampsa at mac.com>
mobile +358 40 7208932
On 4 Oct 2013, at 18:31, Cory Smelosky <b4 at gewt.net> wrote:
On Fri, 4 Oct 2013, Sampsa Laine wrote:
Guys,
Saku Setala donated a VT420 a while back but the screen is almost unreadable, unless you turn off all ambient light.
Is there any way to fix this?
Increase the current to the electron gun.
How does one go about doing that? I'm more of a software guy, not an EE...:)
sampsa
Well, if you're a software guy...go try and find a local retro TV/radio
guy. They'll likely have the right skills and equipment to attempt to
rejuvenate it. You'd be messing with voltage in the kilovolt range
here...so I don't recommend doing it yourself.
;)
--
VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)ORG
Well I speak to machines with the voice of humanity.
Sampsa Laine <sampsa at mac.com> writes:
sampsa <sampsa at mac.com>
mobile +358 40 7208932
On 4 Oct 2013, at 18:34, "Brian Schenkenberger, VAXman-" =
<system at TMESIS.COM> wrote:
Gregg Levine <gregg.drwho8 at gmail.com> writes:
=20
Hello!
Are there any other settings you can tweak? Especially since I
believe that place sitter might be CRT based, so there might be ones
for the contrast and bright. (Remember those? They were found on
classic SDTV sets.)
=20
There should be brightness and contrast controls on the right hand (as =
facing
the display) side of the terminal.
=20
Tried all those, no help.
There is one more on the board. You may need an adjustment tool for it.
It's a small pot near the front and near the brightness and contrast knobs.
--
VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)ORG
Well I speak to machines with the voice of humanity.
Well, if you're a software guy...go try and find a local retro TV/radio guy. They'll likely have the right skills and equipment to attempt to rejuvenate it. You'd be messing with voltage in the kilovolt range here...so I don't recommend doing it yourself.
Good suggestion - I'll look into it next time I'm in Finland. Worst case scenario where I'd have no screen I'd still have serial LK-style keyboard, and those are supported by a weird Linux module.
Wire that up to RaspPi with a hub of USB->RS232 adapters that boots a good Linux based terminal emulator.
sampsa
On Fri, 4 Oct 2013, Cory Smelosky wrote:
On Fri, 4 Oct 2013, Sampsa Laine wrote:
sampsa <sampsa at mac.com>
mobile +358 40 7208932
On 4 Oct 2013, at 18:31, Cory Smelosky <b4 at gewt.net> wrote:
On Fri, 4 Oct 2013, Sampsa Laine wrote:
Guys,
Saku Setala donated a VT420 a while back but the screen is almost unreadable, unless you turn off all ambient light.
Is there any way to fix this?
Increase the current to the electron gun.
How does one go about doing that? I'm more of a software guy, not an EE...:)
sampsa
Well, if you're a software guy...go try and find a local retro TV/radio guy. They'll likely have the right skills and equipment to attempt to rejuvenate it. You'd be messing with voltage in the kilovolt range here...so I don't recommend doing it yourself.
Still, it's only going to be temporary. It might help it for a couple years, and it might last 20 minutes. Your best bet is picking up a replacement CRT or a replacement terminal.
--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects
On Fri, 4 Oct 2013, Sampsa Laine wrote:
sampsa <sampsa at mac.com>
mobile +358 40 7208932
On 4 Oct 2013, at 18:31, Cory Smelosky <b4 at gewt.net> wrote:
On Fri, 4 Oct 2013, Sampsa Laine wrote:
Guys,
Saku Setala donated a VT420 a while back but the screen is almost unreadable, unless you turn off all ambient light.
Is there any way to fix this?
Increase the current to the electron gun.
How does one go about doing that? I'm more of a software guy, not an EE...:)
sampsa
Well, if you're a software guy...go try and find a local retro TV/radio guy. They'll likely have the right skills and equipment to attempt to rejuvenate it. You'd be messing with voltage in the kilovolt range here...so I don't recommend doing it yourself.
--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects
sampsa <sampsa at mac.com>
mobile +358 40 7208932
On 4 Oct 2013, at 18:31, Cory Smelosky <b4 at gewt.net> wrote:
On Fri, 4 Oct 2013, Sampsa Laine wrote:
Guys,
Saku Setala donated a VT420 a while back but the screen is almost unreadable, unless you turn off all ambient light.
Is there any way to fix this?
Increase the current to the electron gun.
How does one go about doing that? I'm more of a software guy, not an EE...:)
sampsa
sampsa <sampsa at mac.com>
mobile +358 40 7208932
On 4 Oct 2013, at 18:34, "Brian Schenkenberger, VAXman-" <system at TMESIS.COM> wrote:
Gregg Levine <gregg.drwho8 at gmail.com> writes:
Hello!
Are there any other settings you can tweak? Especially since I
believe that place sitter might be CRT based, so there might be ones
for the contrast and bright. (Remember those? They were found on
classic SDTV sets.)
There should be brightness and contrast controls on the right hand (as facing
the display) side of the terminal.
Tried all those, no help.
On Fri, 4 Oct 2013, Cory Smelosky wrote:
On Fri, 4 Oct 2013, Sampsa Laine wrote:
Guys,
Saku Setala donated a VT420 a while back but the screen is almost unreadable, unless you turn off all ambient light.
Is there any way to fix this?
Increase the current to the electron gun.
It might be increasing /voltage/ only with low current...but you'd need the skills to do ti safely and HV equipment.
Sampsa
--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects
Gregg Levine <gregg.drwho8 at gmail.com> writes:
Hello!
Are there any other settings you can tweak? Especially since I
believe that place sitter might be CRT based, so there might be ones
for the contrast and bright. (Remember those? They were found on
classic SDTV sets.)
There should be brightness and contrast controls on the right hand (as facing
the display) side of the terminal.
--
VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)ORG
Well I speak to machines with the voice of humanity.
On Fri, 4 Oct 2013, Sampsa Laine wrote:
Guys,
Saku Setala donated a VT420 a while back but the screen is almost unreadable, unless you turn off all ambient light.
Is there any way to fix this?
Increase the current to the electron gun.
Sampsa
--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects
