Monthly Archives: March 2015
Sunlight
Guitar Pedal – Balanced in to Low-Z unbalanced ==> HiZ to Balanced out
A client asked for a way to balance a guitar pedal so he could send and return Line Level to his guitar pedals. He wanted a way to use his pedal collection as effect sends. We came up with a modified Ward-Beck Systems POD-1. The POD-1 offered op-amp gain adjustment trimmer pots so you are adjusting the gain of the balancing amplifiers.
The un-balanced output impedance is roughly 30Ω and the unbalanced Input Impedance is 47kΩ. It’s a pretty safe assumption that mopst guitar effects can operate within these ranges.
You could also use this as a re-amp tool and a hyper-transparant Direct Inject box for keyboards and anything unbalanced.
XLR input Balanced +4dBu differential Receiver to an RCA connector to a 1/4″ TS jack that feeds the pedal then return to the opposite.
If you are interested in trying one out contact Ward-Beck Systems 
Nakamichi RX-202 cassette deck flip
I was at a Hi Fi shop in Ottawa and they would not demonstrate the RX202 for my brother… Of all the things in the store, this was not for sale for some reason…
here is a video of what it does
SUCCESSIVE APPROXIMATION ADC CALCULATOR
Was working on my Micro controller reading and had a need for a calculator to check my work for Successive Approximation of Analog to Digital signals.
WIKIPEDIA: A successive approximation ADC is a type of analog-to-digital converter that converts a continuous analog waveform into a discrete digital representation via a binary search through all possible quantization levels before finally converging upon a digital output for each conversion.
reading week
This is piling up… 