Power amplifiers for "lazy builders"
You hate complicated machine work? Strip lines and other specifically VHF/UHF "stupidities" drive you crazy? You don't have PTFE sheet? You want to build VHF/UHF power amplifier but you are too lazy to deal with complicated mechanical works? You don't like to read text given in article together with schematic and layout diagrams? You are very good and experienced PA builder, although others don't think so? If amplifier works, credit goes to you, if don't, blame goes to others? You don't want to waste your talents on ordinary PA designs? If it is so, you are on the right place, and these designs are "your cup of tea"!
Important notes:
All connections between RF parts, and also connections to ground
MUST BE as short as possible! This is VHF, not HF, in spite that designs
may looks like HF! Hi! See mechanical layout of PA
designs below!
If input
circuit trimmers, need to be at maximum or minimum capacity during adjusting, it
is necessary to change the length of the cable between the exciter and the
amplifier itself. The optimal length of the cable should be determined
experimentally to obtain adjustment with approximately the calculated values of
capacitances. This experimentally determined cable should always be used when
operating the amplifier. A change of exciter could occasionally require a new
length of cable to be determined.
1xGS35B 6m+4m Lazy Builders Duobander PA New!
6 m 
4 m 
1xGI46B 2m Lazy Builders PA Data New
Built by Uge, EA7HG
2xGI46B 2m Lazy Builders PA Data New
1xGI7B 2m Lazy Builders PA 1 2 3
Built by Ratko, YU1NR
2xGI7B 2m Lazy Builders PA 1 2 3
Built by Saša, YU1EO
Built by Glenn, VK4BG
1xGS31B 2m Lazy Builders PA 1 2 3 4 5 6 7
2xGS31B 2m Lazy Builders PA 1 2 3
1xGS35B 2m Lazy Builders PA New
2xGS35B 2m Lazy Builders PA New
Built by Leif, OZ6ABA
Built by Željko, 9A3RU
Built by Fica, YU7AA
New
New
New
50 MHz
70 MHz
New
1xGS31B 4m Lazy Builders PA
Built by: Rhys, GW4RWR
