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Ron Hoffman

Ron Hoffman
Ron Hoffman
Ron Hoffman
Ron Hoffman is the President of Hoffman Electronics Inc. He is a veteran in the field of Electronics and Embedded Systems. Also honored and listed in “Who’s Who of American Inventors” 1996-1997;1998-1999 for patented inventions (see WEBsite <a href="http://www.RJHEINC.com/">http://www.RJHEINC.com/</a>. Other than this he loves swimming, tennis, teaches guitar, and hiking. Read his articles in our site here.
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Hi Jordan, You can use this circuit for a guitar amp. You of course would only need one channel for…
On DIY 30 Watt Stereo Amplifier Circuit
Hi Martin, There are several ways to do this project. I built the unit I use and is in the…
On DIY Model Train controller project
Tom, I'm not sure if you are referring to the Ionic Liquid Level detector or the Pressure Liquid level detector.…
On Universal Liquid level indicator circuit with pump control
Hi Rafay, I am not familiar with the mc34074 quad op-amp. The MCP6024 was selected because it has a high…
On DIY Function generator circuit using Quad Op-Amp
No the transistors do not need to be matched.
On DIY 30 Watt Stereo Amplifier Circuit
Hi Victor, R23, R24 are 2K 1/4 watt resistors. They are part of the boot-strap feedback and final stage bias…
On DIY 30 Watt Stereo Amplifier Circuit
Tom, The pot value is needed to provide full 0% to 100% control. Also, the larger value greatly reduces the…
On DIY Model Train controller project
Keith, diode D2 provides isolation between the op-amp filter circuits, (capacitor C5), and the main power supply. This provides stable…
On DIY Model Train controller project
Notice Anonymos that the circuit was slightly modified. One resistor was added to protect the input to the U1D quad…
On Model Rocket launch controller circuit
Milos, did you build the FG yet?
On DIY Function generator circuit using Quad Op-Amp
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