LF: TDA2030 amplifier by OM2TW

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from [Dick]

Hello all,

As I haven't OM2TW's emailadress right now, I'll ask here.

I found an pdf.drawing of the TDA2030 amplifier giving 5Watts or so on 136kHz.

however, at hte output stage there are two coils L3/L4 (ouput transformer) with no

further details mentioned.

Can anyone help me with detailed info about the value/or how to construct these coils?

Also some uncertainty about C21 and C22, are they elco's or normal C's????

73 Dick, pa4vhf

(now probably first try to create QRP in an easy way.......)

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LF: SOFT START, hamilton mal LF: TDA2030 amplifier by OM2TW, Dick <= LF: LF Another test transmission, g3ldo LF: Re: LF Another test transmission, John Andrews LF: 136kHz project cancelled, Dick LF: Re: 136kHz project cancelled, Alberto di Bene LF: more on my 'nasty'136kHz project............., Dick Re: LF: more on my 'nasty'136kHz project............., Rik Strobbe LF: Re: 136kHz project cancelled, hamilton mal LF: my 137 kHz project......, Dick LF: interesting sites for LF too......, Dick LF: 137 kHz project......Handy cost-saving tip, James Moritz

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