Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net

   Home   Help Search  
Pages: [1]   Go Down
  Print  
Author Topic: Swan Mk-6 ? Vs. Mk-6-B  (Read 814 times)
K3JVB
Member

Posts: 837


WWW

Ignore
« on: August 13, 2008, 02:47:34 PM »

Hello all

Can anybody tell me what the difference is ...

Swan "Mk-6" vs. "Mk-6-B"?
Thanks
John
k3jvb
Logged
W1QJ
Member

Posts: 1443




Ignore
« Reply #1 on: August 13, 2008, 03:21:23 PM »

John, I am not really sure, but I can take a shot at it.  I think the earlier Mark VI's like the earlier Mark II's had 3-400 tubes.  Like the Mark II's, they switched to 3-500;s and added bias.  The thing is with the Mark II's they did not change the model name/number even though they made some major changes.  The earlier Swan mark II's had a wimpy tank circuit whereas the later ones were beefed up a bit.  But I could be all wrong about this holding true with the MArk VI, but it could be true too.  Not sure.
Lou
Logged
K3JVB
Member

Posts: 837


WWW

Ignore
« Reply #2 on: August 13, 2008, 05:33:03 PM »

Hi again Lou..Smiley

Yes the one I am looking at is the "B". I also have a early MK-2, with 3-400-z tubes dated (4-17-1965)
They still put out full power plus...

The tank circut in mine looks pretty much the same as the 3-500-z units, but there are some differences in the schematic, and the power supply.

Good to se ya again ! Smiley)
73
Logged
AA4ZZ
Member

Posts: 21




Ignore
« Reply #3 on: August 16, 2008, 05:40:14 AM »

As I recall the Swan Mark 6 is the 50mhz model of the HF Mark I which has an internal power supply. The Mark 6B is the 50mhz version of the HF Mark II which has a seperate power supply. See these HF amps at the Virtual Swan Museum:
 http://www.pcs.mb.ca/~standard

So physically thye are very different. I have a Mark 6B. I have never seen a Mark 6.
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!