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Acquired this old camera today from the in-laws; so far what I know is that it was the grandmother's and these were produced for only a few years in the mid/late 1960s.
The electronic tattoo, which monitors the electrical activity of the heart (EKG), brain (EEG) and muscles (EMG), is shown here, freshly applied on skin with a transparent bandage.
A lot of the testing equipment may seem old, but it's likely rather new. The again most of the fleet is, on average, 27 years old.
by Doug Kline
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NOS Parts from an estate sale.
Previous owner had been in HAM radio for the better part of 60 years and accumulated quite a collection of parts from the late 1950's to early 1960's.
Most are New Old Stock, with some parts being used but working.
This is the 5th revision of the Thingamagoop's innards.
I use expresspcb.com to make the boards simply because they give you the software to design the pcbs.
This 120 film camera is sturdy and easy to use. The lens is a super-fast 80mm f1.9 and the metering positions a needle between two brackets in response to a twist of the aperture adjustment ring. There are two shutter release buttons--one just under the lens and the other above and behind the lens to the right of the finder housing near the front of the camera.
Arduino Duemilanove output pin showing debugging bit sequence at approx 5kHz, triggered on leftmost "start" bit. Tektronix TDS460A scope.
The RX converter portion of my LF 10MHz transverter. The board above the breadboard is an early attempt at a Lowfer beacon that I'm using to test the RX converter. The spool of wire is being used as an "antenna" to receive the unamplified signal generated by the TX.
Changes applied for this PCB version:
1. Directional Wires now match the Wiring Harness Colors of the Sanwa JLF series, making connections easier to follow without the need for labels.
2. Start, Back and Gude now have different colors.
3. A, B, X, Y, LB and RB all have either accurate color wiring or a unique color.