Heathkit HA 14 Linear Amplifier tutorial

http://www.floydfolks.org & http://littlefamilyfarm.com 1-540-808-2880 - floydlcfgroup@gmail - PO box 179 Floyd,Virginia 24091


Full HA 14 Specifications are midway down in the text.
David Larsen KK4WW LCF School LCFSchool

I obtained my first amateur license WN7VZW in 1953 and have been more or less active in all the following years. I have not used this amplifier however I have owned it for 10 years of so. In 1963 I built an amplifier using (4) of the some tubes (572B) and used it mobile for a number of years. It really put out a big mobile signal. I still have my home brew amp but have not used is for at least 38 years. Maybe I will get it out an show it on Youtube. RF amplifiers are one piece of ham equipment that can easily be built or worked on with out many special tools. The HA 14 is sure as simple as it gets and works just fine. I found many reviews doing a Google search and most all were positive and from hams using the amp. The specification on the amp are below.
Great tube Mobile Amplifier
Heathkit HA-14 SSB Linear Amplifier
1965
The amplifier is 12-13/16" wide x 3-3/16" high x 10" deep.
Band Coverage is 80, 40, 20, 15, and 10 meters.
Power input SSB: 1000 watts P.E.P.
Driving power up 100 watts for full output.
Output Impedance 50 ohms unbalanced, SWR not to exceed 2:1.
Input Impedance 52 ohms unbalanced; broad-band pretuned input (circuit requires no tuning)
Meter Functions Relative power and 1:1 to 3:1 SWR.
Front Panel Controls Tune: 80, 40, 20, 15, and 10 meters.
Band 80, 40, 20, 15, and 10 meters.
Relative Power Sensitivity control.
Meter switch: FWD And SWR.
Power switch: OFF, ON.
Tube Complement Two 572-B (or two T160-L) in parallel.
Power Requirements 2000 volts DC at 500 ma and -120 volts DC at 60 ma, an 12.6 Volts Dc at 4 amperes.
Net Weight 7 Lbs.

This video was produced by the LCF Group, ( We are on The Crooked Road Heritage Music Trail and the Round The Mountain Artisan and Craftsman Venue as a great place to visit ) Floyd Professional Center, Village Green, Floyd Virginia. The LCF Group consist of David Larsen KK4WW, Gaynell Larsen KK4WWW and Dee Wallace KG4VMI. We are all radio amateurs and also are Directors of The Foundation for Amateur International Radio Service ( FAIRS) also located in Floyd Virginai. N4USA is the radio call for FAIRS and we have operated in Dominica as J79WW J79WWW J79VMI and many other countries. We are members of The Floyd Amateur Radio Society FARS. The LCF Group (1-540-745-2322) ham radio morse code cw amateurradio hamradio transceiver radio receiver linear amplifier linear amp heathkit ten-tec cw http:// www.va-mountainland.com http://www.virginiamountainland.Com http://www.lcfarticles.com ,David Larsen Blacksburg, David Larsen Blacksburg Group, Blacksburg Group, http://floydcounty-va.com , http://floydcounty-virginia.com , http://www.floydcounty.info , Bugbook , http://bugbookcomputermuseum.com , http://floydcountyonline.org , http://floydcountyva.org , http://floydcountyvirginia.org , http://floydfolks.net , http://floydfolks.org , bugbook series , http://www.bugbookcomputermuseum.com http://www.floydcountyvirginia.org http://www.fairs.org http://www.floydfolks.org and http://www.microcomputerhistorymuseum.com http://microcomputercollector.com in Floyd Virginia. Www.visitfloydvirginia.org www.floydvirginia.org compass magazine www.virtualblueridge.com blue ridge Parkway Destination Center www.floydtourismdirertory.com http://www.stpierrewoodworking.com http://www.floydcountyvirginia.org Bill St Pierre Floyd Virginia http://www.nationalmusic.us

Category:

Science & Technology

Tags:

• Heathkit
• HA
• 14
• Linear
• Amplifier
• David
• Larsen
• KK4WW
• Gaynell
• KK4WWW
• Dee
• Wallace
• KG4VMI
• LCF
• Group
• Floyd
• Virginia
• Village
• Green
• Foundation
• for
• Amateur
• International
• Radio
• Service
• FAIRS
• Hams
• Collectible
• vintage
• Dxing
• FSBO
• Land

[mginsel]

So if you find one w/o the P/S on eBay is it worth say $200 if you want to run it base? Looks like without a P/S it is more trouble than it's worth trying to use on 110/VAC, agreed? Maybe look for an SB-200, etc. Great video.

[lcfgroup]

@mginsel Yes without 110VAC supply with the HA-14 I would not consider the work needed for base operation. The SB-200 is good option. I have been looking for the Heath 110VAC made for the HA-14 supply at ham fest and have not seen one in a number of years for sale without the amp. I have seen a few HA-14's with the AC supply. I have not used the HA-14 I currently have.

[Wohali1]

Glenn,

Hate to nit pic, but "linier" is spelled "linear".

73,

Dave W6IML

[lcfgroup]

@Wohali1 Hi Glenn - I need a little nit picking - don't spell to well and my fingers often hit the wrong key - Thanks for looking at my video - I am thinking of doing some videos on some of the old antenna turners- I have a good number of them and ham folks like to look at this kind of video. Dave KK4WW

[lcfgroup]

@lcfgroup Hi Glenn - I have added about 6 videos about some of the antenna tuners I have . They are here on my LCF channel - Dave KK4WW N4USA

[wa4aos]

Very well done video. Thanks.

73

Glenn WA4AOS

Laurens, SC

[lcfgroup]

@wa4aos Hi Glenn - Thanks for the nice comment - have a lot of this old stuff and hope to do more videos about some of it. Fellow hams like to look at the old rigs and I do as well. If you are ever up this way to Floyd Virginia look me up. I have a small historical microcomputer display here and you can see it on my video channel lcf group same place as the HA-14. We are on about mile post 168 Blue Ridge Parkway - Dave KK4WW at N4USA

[lcfgroup]

@lcfgroup I see an error in my start at Remington Rand Univac it was 1957 not 1967 for the training at Rand - Dave

[lcfgroup]

We have Apple 1 Microcomputers in LCF Group - you can see all 4 in our LCF Group collection at Mike Willegal's ' Apple 1 Registry ' - Folks ask how did you ever get 4 Apple 1's - short answer - I have been involved in teaching, using, collecting & writing about computers at Virginia Tech & other places for over 54 years - started at Remington Rand Univac company in 1967 - I have advertised in various trade magazines ' wanted pre1980 microcomputers for historical collection' for past 40 yrs

[lcfgroup]

I Just added some comments to on the video about our "Foundation for Amateur International Radio Service" FAIRS our call is N4USA. Also put some links you can go to while watching the video about our Historical Microcomputer Collection we have here in Floyd Virginia. The FAIRS offices are also located in Floyd Virginia and managed by the LCF Group. Hope you like the video and of course you can just ignore the links if not interested. Thank you for watching & leave a comment ham radio or video