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Showing posts with label LM386. Show all posts
Showing posts with label LM386. Show all posts
11 June, 2017

Simple interference fix for the Chinese Pixie

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The Chinese Pixie transceiver operating at 7023 kHz has become very popular. It often costs less than 5 USD on Ebay. Like most Pixies it is ...
11 August, 2015

The LM386 Pixie challenge

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The Pixie 2 is this minimal transceiver which I and many others have played around with and had lots of fun with. My 80 m version is ...
1 comment:
11 July, 2015

Regenerative receiver based entirely on the LM386

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I got a tip the other day that there is an interesting circuit over at the RadioBoards Forum where an LM386 IC is used as a regen receiver f...
20 June, 2014

Disappointment with Spice and the QRP-er's favorite, the LM386

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The trusty old LM386 audio amplifier from the 70's is still used a lot in low power and portable equipment. Recently some ultra high gai...
03 May, 2014

Practical Wireless with the LM386 unleashed

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"Improving the LM386 Audio Amplifier"  is the title of always inspiring Rev. George Dobbs G3RJV's column in this month...
24 May, 2011

QRPp: Ultra low power operation with the Pixie 2

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QRPp is radio amateur jargon for communication using a transmitter with less than 1 Watt power output. That’s less than a handheld GSM mobil...
22 comments:
01 May, 2010

Pixie sidetone oscillator and reduced broadcast interference

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This circuit provides a sinusoidal sidetone oscillator for the Pixie. As an added benefit, it will also cause reduced broadcast interferenc...
02 August, 2003

Unleashing the LM386

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From Wikipedia Commons, author 'Samba pa ti' The LM386 must be one of the most popular audio output amplifiers among radio amat...
5 comments:
02 April, 2003

Using pin 7 of the LM386 to reduce BCI and add side tone to Pixie 2

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The Pixie is a full break-in transceiver which is attractive for its simplicity, yet it performs well enough to be used for real contacts. T...
4 comments: