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View Full Version : Picked up a little history this week end



kc4umo
01-10-2010, 08:09 PM
A Johnson Viking Thunderbolt
Man this thing is heavy!
But she is a beauty. Only a few nicks and a scratch here and there.

The owner changed out the 4-400's with 3-500z's. He thought it was a plain tube swap. When he put the originals back in he then found that when you hit the plate switch it appears to be in tx mode. Other words the OD3 and OC3's start the glow, there is a hum and the tubes will start to turn orange. So looks like he took something out in the bias circuit since the tubes are turning orange.

I can not believe the appearance of this amplifier. The inside is so clean. I will post some pics of the inside later. I was already offered 2 grand for it.

Anyway this is a beautiful piece of history.

http://www.gokarters.com/vbforum/attachment.php?attachmentid=800&stc=1&d=1263167739

http://www.gokarters.com/vbforum/attachment.php?attachmentid=801&stc=1&d=1263167746

http://www.gokarters.com/vbforum/attachment.php?attachmentid=802&stc=1&d=1263167753

N1LAF
01-10-2010, 08:45 PM
Very nice!

kc4umo
01-10-2010, 08:54 PM
Very nice!


Thanks.
Here is a glowing pic of one like it.
http://www.gokarters.com/vbforum/attachment.php?attachmentid=803&stc=1&d=1263172789

W2NAP
01-11-2010, 01:26 PM
amazing

AF6LJ
01-11-2010, 03:57 PM
That's really nice.

W7XF
01-13-2010, 08:24 PM
Tubes glowing on a cold winters night....how purty! :agree:

N7YA
01-15-2010, 08:50 AM
Thats a beautiful piece of gear. Congrats!

kc4umo
01-15-2010, 06:15 PM
Thanks guy's and gals.

I like old stuff.
Here is a few more pics of some of my stuff.
Please note. The new room in the shop is far from finished. So it is a mess.



Drake 1-A receiver
http://www.gokarters.com/vbforum/attachment.php?attachmentid=807&stc=1&d=1263593991
Drake L4B
http://www.gokarters.com/vbforum/attachment.php?attachmentid=808&stc=1&d=1263594104
http://www.gokarters.com/vbforum/attachment.php?attachmentid=809&stc=1&d=1263594224

Some of the radios waiting for room to get finished so I can hook them up.
http://www.gokarters.com/vbforum/attachment.php?attachmentid=810&stc=1&d=1263594668