[ARC5] Mike Preamp?

[Richard Knoppow]

    Another possibility for a speaker amp is to find a used computer 
speaker with built in amplifier, they abound at thrift stores. These 
very small speakers with extended bass do require some power. Most of 
the old style open box speakers sold for communications receivers will 
be quite room filling on one watt. The small speakers trade efficiency 
for low end response.

On 1/18/2018 6:53 AM, Robert  Eleazer wrote:
> Looks like I am going to need a mike preamp on my ARC-114 and ARC-116.  
> Any of y'all have any circuits you would recommend?  I am going to run 
> some tests using an audio signal generator to see what kind of input 
> levels are required.
> I found a 500MW audio amp kit at RadioShack.com for $5.00 and I'll use 
> that for audio output.  Headphone volume is entirely adequate but I may 
> want to use a speaker.
> Thanks.
> Wayne
> WB5WSV
> 
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-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL