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Author Topic: BLF245 30W Broadcast Amplifier  (Read 4583 times)

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BLF245 30W Broadcast Amplifier
« on: June 16, 2024, 10:09:54 am »
Hi everyone, heres a FM Broadcast amplifier board designed a few years ago now. Its now a discountinued project, so free for everyone to download a use. (see gerber download under image).

All components are marked on the PCB. the LPF is the same as the NRG Pro boards or recent RB LPF in the Technical section on this forum http://www.radiobuilders.co.uk/technical-corner/500w-lpf/

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« Last Edit: November 10, 2025, 02:30:16 pm by zxbasic »
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Give me a AM transmitter with things that glow any day.

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Re: BLF245 30W Broadcast Amplifier
« Reply #1 on: June 16, 2024, 10:49:49 am »
Here's the coax transformer cutting lengths for the above board. The total length is the most critical part, other lengths have room for discrepancy.

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« Last Edit: June 16, 2024, 10:52:17 am by ZoZo »
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Give me a AM transmitter with things that glow any day.

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Re: BLF245 30W Broadcast Amplifier
« Reply #2 on: June 16, 2024, 11:24:35 am »
Benn waiting to get my hands on one of these. Thank you for posting
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ATUS FM
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Re: BLF245 30W Broadcast Amplifier
« Reply #3 on: June 18, 2024, 12:18:41 pm »
Nice one. I have a few boards you sent me but have ordered some extra. i will post my progress on the build.
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Re: BLF245 30W Broadcast Amplifier
« Reply #4 on: August 15, 2024, 01:57:40 pm »
just waiting on the last part and then testing will begin. [ Guests cannot view attachments ]
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Re: BLF245 30W Broadcast Amplifier
« Reply #5 on: September 09, 2024, 01:15:29 am »
think it time for a new you tube video on this amp  ;)
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