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I'm available for projects

I sit here bored out of my skull with nothing to do but play Solitaire until the next project start on July 5 ;-)

I'm noted for custom Analog/Mixed-Signal Design and Spice Behavioral Modeling, but I also do designs using off-the-shelf components.

No project is too small... I've even done one-day designs from time-to-time.

Drop me an E-mail (*)

(*) Do not include attachments in your first E-mail... An E-mail not matching an entry in my addressbook and with an attachment drops your E-mail into a black hole. ...Jim Thompson

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| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142     Skype: skypeanalog  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
I love to cook with wine.     Sometimes I even put it in the food.
Reply to
Jim Thompson
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Try also Criminal Case on Facebook. :D

Michael

Reply to
mrdarrett

How about writing that book I've been bugging you about?

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs 
Principal Consultant 
ElectroOptical Innovations LLC 
Optics, Electro-optics, Photonics, Analog Electronics 

160 North State Road #203 
Briarcliff Manor NY 10510 

hobbs at electrooptical dot net 
http://electrooptical.net
Reply to
Phil Hobbs

I ponder that, but I'm not sure I'd be good at writing... circuit design is so easy for me I'm not sure I can explain how I do it ;-) ...Jim Thompson

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| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142   Skype: Contacts Only  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
           The touchstone of liberalism is intolerance
Reply to
Jim Thompson

Do you freeze when walking, then frantically start drawing in the dirt with a stick, like this poor Croatian did? :D

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Michael

Reply to
mrdarrett

Worse... I dream circuits and wake myself up, then can't get back to sleep ;-) ...Jim Thompson

--
| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142   Skype: Contacts Only  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
           The touchstone of liberalism is intolerance
Reply to
Jim Thompson

As long as the circuit isn't lost, it's a gain, right?

Sometimes I would dream of music in my sleep, wake up, and want to write the notes down, but in the transition to wakefulness they're lost :p

Michael

Reply to
mrdarrett

Start with some examples, and write them as you go along. I find that writing or rewriting sections when I'm actually doing the task described improves them greatly.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs 
Principal Consultant 
ElectroOptical Innovations LLC 
Optics, Electro-optics, Photonics, Analog Electronics 

160 North State Road #203 
Briarcliff Manor NY 10510 

hobbs at electrooptical dot net 
http://electrooptical.net
Reply to
Phil Hobbs

In the mid 1980s, Roland had International Rectifier design a custom chip called the IR3R05 for their analog synthesisers. I think it was a 14 pin package...it basically consisted of 4 OTA stages like the Lm13700 configured as a 24 db/octave resonant low pass filter with inputs for voltage controlled frequency and resonance, along with a VCA with both linear and exponential inputs, all on the chip. The 4 filter capacitors were mounted off chip on the board.

What kind of job would it be to design a chip or maybe a daughterboard that performed an equivalent function? These chips often fail in vintage equipment and there seems to be a decent sized market for replacements that dont require scrounging for NOS or cannibalizing old units.

--


----Android NewsGroup Reader---- 
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Reply to
bitrex

I'm sure I could replicate the chip, but I don't do PCB layout, that's another skillset altogether. ...Jim Thompson

--
| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142   Skype: Contacts Only  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
           The touchstone of liberalism is intolerance
Reply to
Jim Thompson

Yep. I developed a behavioral model extension for OpAmp parameters in my sleep this week ;-) ...Jim Thompson

--
| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142   Skype: Contacts Only  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
           The touchstone of liberalism is intolerance
Reply to
Jim Thompson

Good thing I've got that skillset. ; )

I wonder it the required components could be squeezed into a daughterboard that would fit the space available. Might require some vertical mounting hack.

--


----Android NewsGroup Reader---- 
http://usenet.sinaapp.com/
Reply to
bitrex

Jim, go buy a fishing pole.

Reply to
Tom Biasi

That would rather involve water. Jim lives in the outskirts of Phoenix.

Cheers

Phil Hobbs

Reply to
Phil Hobbs

He's got time to take a ride. I think you got the gist of my comment.

Reply to
Tom Biasi

Or, perhaps, a .300 Win Mag?

Michael

Reply to
mrdarrett

You have a granddaughter with that circuit lab kit. Eventually you will explain things. Just think about how you will do that.

Or occupy your time by riding a bike over the Himalayas like Pease did.

Reply to
Tom Del Rosso

Grand_son_... 8 years old... the same one who's on the All Star Inline Hockey Team and was just awarded a trophy for best defensive player of the whole league ;-) ...Jim Thompson

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| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142   Skype: Contacts Only  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
           The touchstone of liberalism is intolerance
Reply to
Jim Thompson

Well then just pretend that he's going to be an engineer and not a goalie.

Reply to
Tom Del Rosso

He's super with math, and loves the circuit lab upgrade I gave him at Christmas. But he's struggling with reading... a bit of dyslexia... time to hire a tutor (I would do it, but he needs an authoritarian type to keep him from deviating from work and controlling the conversation... he's a charmer... seeks out the girls in the crowd... and he's only 8 ;-) ...Jim Thompson

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| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142   Skype: Contacts Only  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
 Liberalism: Dictatorship By The People Who Think They Know Best
Reply to
Jim Thompson

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