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Homebrew multiband amplifier

Jun 11th 2013, 14:05

KC9HTC

Joined: Jun 9th 2005, 13:26
Total Topics: 0
Total Posts: 0
Hello: I want to start building my own multiband amplifier and want it to do legal limit, Just need to know if there are any books or web pages someone can suggest to get me started. I know high voltage can kill as I have to go to electrical safety awareness training every 2 yrs for my job so i don't have to be warned about that, but any and all suggestions are welcome. Thank you, Bruce, KC9HTC
Jun 11th 2013, 15:51

W1VT

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0

http://www.arrl.org/hf-tube-amplifiers

A Legal-Limit Amplifier for 160 through 10 Meters (8877)
http://www.arrl.org/files/file/protected/Group/Members/Technology/tis/info/pdf/90hb3050.pdf
ARRL Handbook 1990, pp. 30-50 to 30-57

Zack Lau W1VT
ARRK Senior Lab Engineer

Oct 12th 2015, 03:06

KA5IVU

Joined: Oct 26th 2013, 23:39
Total Topics: 0
Total Posts: 0
Quote by W1VT

http://www.arrl.org/hf-tube-amplifiers

A Legal-Limit Amplifier for 160 through 10 Meters (8877)
http://www.arrl.org/files/file/protected/Group/Members/Technology/tis/info/pdf/90hb3050.pdf
ARRL Handbook 1990, pp. 30-50 to 30-57

Zack Lau W1VT
ARRK Senior Lab Engineer



I just stumbled across this web site, and being on a fixed income, probably the only way that I will ever be able to afford an amplifier is to do like Johnny Cash did and get it "one piece at a time".

That being said, approximately how much does it cost to build this amp?

73
Jeffery L. Brown
KA5IVU

p.s. Please respond to this query at mycall@att.net

Thanks.
Oct 12th 2015, 13:32

W1VT

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
http://www.qsl.net/kk5dr/
As the amplifier building page on this page suggests, the cost to build an amplifier varies tremendously. Perhaps the most cost effective way to get an amplifier is to get an old sweep tube amplifier that needs new tubes and modify it for cheap surplus tubes--perhaps an old Russian tube. Homebrew amps are also very cheap, but I'd only recommend this approach to advanced hams with experience is building projects.

The best approach for a lot of hams may be to save up your money to buy an old Heathkit amplifier--they were made in huge quantities so there is huge knowledge base on how to fix them if anything goes wrong. You may be able to get a really good deal from an elderly ham who no longer needs an amp and wants to find a good home for it.

Zack Lau W1VT

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