Radio Builders

Radio Discussion => Technical Corner => Topic started by: ZoZo on June 16, 2024, 10:09:54 am

Title: Re: BLF245 30W Broadcast Amplifier
Post by: eye102 on September 09, 2024, 01:15:29 am

think it time for a new you tube video on this amp  ;)

Title: Re: BLF245 30W Broadcast Amplifier
Post by: MonTaylor on August 15, 2024, 01:57:40 pm

just waiting on the last part and then testing will begin. [attachimg=1]

Title: Re: BLF245 30W Broadcast Amplifier
Post by: Dave 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.

Title: Re: BLF245 30W Broadcast Amplifier
Post by: MonTaylor on June 16, 2024, 11:24:35 am

Benn waiting to get my hands on one of these. Thank you for posting

Title: Re: BLF245 30W Broadcast Amplifier
Post by: ZoZo 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.

[attach=1]

Title: BLF245 30W Broadcast Amplifier
Post by: ZoZo 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/

[attach=1]

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