• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
  • Click here to find out how to win free radios from Retevis!

Apologies.....

paws264

Active Member
Apr 6, 2005
646
14
28
<apology>To those of you who probably thought I had my head stuck up my butt, you may have been correct.

Just recently, I reached a milestone on an amplifier project that I started 5 years ago. It started out as a single tube and, I built an amplifier around it from scrap parts and, it worked.

http://www.worldwidedx.com/amplifiers/21036-gs35b-project.html

Drunk with success from the single tube amp, I decided to build a 2 tuber

amp1.jpg


.

amp-2.jpg


Over a period of time, I acquired all my parts and based on the sizes of the parts and the desire to locate components in certain places, I made a design and fabricated the case out of sheet metal, Aluminum angle stock and, Pop Rivets. I only had access to rudimentary metal working tools.

I was counseled by others with more experience than I about certain things in my construction; 99% of which I implemented wherever possible. I re-worked the whole amplifier, going from a single filament supply for 2 tubes to a dual setup with 2 separate supplies and bias systems.

SO, based on my plan to build a 2 tube amplifier from scratch starting with sheet metal and screws, I have succeeded. In retrospect, when I started this project I understood that all HB amps can be viewed as "Works-in-progress"; I know that it is not pretty. This amp will probably never see an antenna, just a Heath Cantenna Dummy Load :( </apology>

Also just recently, I had the benefit of seeing a 2 tube GS35B amplifier that was constructed so well that, it made me sick to my stomach to look at my own amplifier.

P1010021.jpg


Bottom of RF Deck:

P1010020.jpg


Top of RF Deck;

P1010025.jpg


Rear Panel:

P1010031.jpg


After looking at Jim's work, I am thinking of scraping my amp (or at least removing one tube); I might even use the deck but change to a single YC-156 or some tube of that nature.

.
 
Last edited:

Jim's amp says, "50 Mhz" amp on the front panel,

P1010021.jpg


mine <cough-cough> was also a "6 Meter Amplifier" </cough-cough>!

october011-1.jpg


.

.
 
<apology>.

Just recently, I reached a milestone on an amplifier project that I started 5 years ago. It started out as a single tube and, I built an amplifier around it from scrap parts and, it worked.

.

You don't need to apologize because your amp isn't pretty.. The bottom line is it works. It's not easy to build anything from scratch, and get it to work on your first try. Nice job. CONGRATULATIONS... & 73s.

- 399
 

dxChat
Help Users
  • No one is chatting at the moment.
  • dxBot:
    Greg T has left the room.
  • @ BJ radionut:
    EVAN/Crawdad :love: ...runna pile-up on 6m SSB(y) W4AXW in the air
    +1
  • @ Crawdad:
    One of the few times my tiny station gets heard on 6m!:D
  • @ Galanary:
    anyone out here familiar with the Icom IC-7300 mods