[GreenKeys] HAL ST-6000 D3-130 CRT

[Bill Henry]

Don, Steve, and all:

The original CRT used in the ST-6000 was the Brimar D3-130.  Later, 
we switched to the AEG Telefunken D3-11.  The two tubes are 
practically identical.  We also used the Ultron D3-14GH for a while 
but it requires a different socket.  The 1CP1 and 1EP1 are not direct 
replacements and will require different sockets and probably some 
wiring changes as well.  The ST-6000 CRT circuit uses a pretty low HV 
and that may also be a problem with other 1" tubes.  One other 
approach might be to look for the Millen 1" CRT module.  That's where 
we started and we bought the ST-6000 bezels from Millen for as long 
as they were in business.  The Millen module should fit mechanically 
- but you will no doubt have to play some games making your own 
deflection amplifiers.

Have fun.
Bill Henry


At 09:27 AM 6/14/2009 -0500, Don Cunningham wrote:
>Steve,
>If I remember correctly, and that's getting harder to do, hi, when I got my
>new ST-6000 from Bill Henry in 2004, he told me that the last time he tried
>to get them that they had become "unobtainium".  They were ridiculous prices
>before (like $500 or so) then just gone.  Look for a spare on the bay,
>hamfests, etc.  There are many of these still out there, and available for
>very little now.  Great TU, by the way.  Had mine on 20m last week, and
>would this weekend BUT there's a darned contest, hi.
>73,
>Don, WB5HAK
>
>______________________________________________________________
>GreenKeys mailing list
>Home: http://mailman.qth.net/mailman/listinfo/greenkeys
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:GreenKeys at mailman.qth.net
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html