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2 compact flash cards
red line is 4gb transcend (brand) '266x' card. blue line is 16gb sandisk extreme card. the sandisk...
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Uploaded on Jan 18, 2012
preamp/selector/volume control design trial
adding support for a modern day 'tape loop', but in digital (spdif). the new spdif switch will be...
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Uploaded on Jan 14, 2012
tascam compact flash digital audio recorder/player
record time using compact flash
using a 16gb flash card and 320k mp3, this machine says there is 89 HOURS left of...
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Uploaded on Jan 12, 2012
record time using compact flash
using a 16gb flash card and 320k mp3, there are 14 hours (and change) of recording time on this file...
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Uploaded on Jan 12, 2012
retail packaged sandisk 16gb compact flash card
with flash and especially sandisk, you want to buy retail sealed boxes. avoid ebay entirely, but...
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Uploaded on Jan 12, 2012
symetrix 620 a/d converter
foreground is the fairly decent (for its time) symetrix 620 analog to digital converter. 20bit...
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Uploaded on Jan 12, 2012
audio flow diagram (single amp+speakers)
a more typical use-case. one main speaker amp and one external headphone amp. S2 selects between...
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Uploaded on Jan 10, 2012
audio flow diagram (headphones)
updated diagram. switches s1 and s2 allow use for multi-amp as well as single-amp...
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Uploaded on Jan 10, 2012
audio flow diagram (tri-amp)
proposed audio flow diagram (simplified high level view) for the Sercona Controller 3. teal boxes are components of the Sercona system.
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Uploaded on Jan 9, 2012
DIY: remote control of a DAC by i2c
wiring/bottom view remote i2c control, allowing input selection (spdif) on an existing DAC.
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Uploaded on Jan 6, 2012
DIY: remote control of a DAC by i2c
top view remote i2c control, allowing input selection (spdif) on an existing DAC.
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Uploaded on Jan 6, 2012
DIY: active crossover (bi-amp) setup
using 24db/oct filters for highpass and lowpass on my new speakers. this crossover (middle box) lets...
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Uploaded on Dec 29, 2011
DIY: 4-channel chip-amp (lm3886)
4 chip-amp boards ($15 each, populated) and a single filter bank/regulator for them all. I used junk...
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Uploaded on Dec 29, 2011
DIY: power supply for 4-channel chip-amp
made from a single dual-secondary 22vac toroid. re-using an ATX power supply case (!) since it was...
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Uploaded on Dec 29, 2011
wm8804 spdif digital audio receiver/transmitter on a chip carrier
my own soldering. the so-called 'flood and suck' method really works well even though its looked...
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Uploaded on Dec 25, 2011
wm8804 spdif digital audio receiver/transmitter on a chip carrier
my own soldering. the so-called 'flood and suck' method really works well even though its looked...
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Uploaded on Dec 25, 2011
DIY: Madisound.com MD14, Seas L18 & Seas 27TBFCG speakers
7" aluminum cone woofer and aluminum dome tweeter. both from Seas (norway). cabinet is from...
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Uploaded on Dec 23, 2011
