Rangkaian Penguat Antena VHF 30 Watt
30
watt amplifier schematic shown below provides an appropriate power
boost with an input of 4 watt up to 6 watts. The circuit is designed to
cover 88-108MHz FM Broadcast Band. However, the circuit is very stable
at my place and provides a clean-output through seven (7) element
Butter-worth low-pass filter. The heart of the circuit is 2SC1946A VHF
RF power transistor. The transistor is specifically designed for
operation in frequencies up to 175 MHz, with very good results.
As
you can see, the power line is well decoupled. The amplifier current
can be over 5 amps. All the coils are made from 16gauge laminated wire
(or Silver copper wire can do best) and the RFC can be of HF toroid core
(as shown in the picture) or 6 holes ferrite bead.C3 and R1 forms
snubber circuit while R2 and C6 prevent the amplifier from
self-oscillation at VHF, sometimes you need to add 180 ohms in parallel
with L7.That will cause the amplifier to dissipate UNDESIRABLE VHF thereby reducing spurious level.
However, the circuit is
very stable at my place and provides a clean-output through seven (7)
element Butter-worth low-pass filter.
30W VHF FM Broadcast Amplifier.... Read more at: file:///F:/UNDUHAN/circuit-30w-vhf-fm-broadcast-amplifier.html
Copyright http://www.circuitlab.org/ Under Common Share Alike Atribution
Copyright http://www.circuitlab.org/ Under Common Share Alike Atribution
Circuit 30W VHF FM
Broadcast Amplifier Schematics
Category : circuit » circuit Electronics » Electronic schematics »
electronics » Electronics Board » FM Amplifier » schematics
However, the circuit is very stable at my place and provides a
clean-output through seven (7) element Butter-worth low-pass filter.
30W VHF FM Broadcast Amplifier.... Read more at: file:///F:/UNDUHAN/circuit-30w-vhf-fm-broadcast-amplifier.html
Copyright http://www.circuitlab.org/ Under Common Share Alike Atribution
Copyright http://www.circuitlab.org/ Under Common Share Alike Atribution
Circuit 30W VHF FM
Broadcast Amplifier Schematics
Category : circuit » circuit Electronics » Electronic schematics »
electronics » Electronics Board » FM Amplifier » schematics
However, the circuit is very stable at my place and provides a
clean-output through seven (7) element Butter-worth low-pass filter.
30W VHF FM Broadcast Amplifier.... Read more at: file:///F:/UNDUHAN/circuit-30w-vhf-fm-broadcast-amplifier.html
Copyright http://www.circuitlab.org/ Under Common Share Alike Atribution
Copyright http://www.circuitlab.org/ Under Common Share Alike Atribution
