From the Vault to the Bench - a close look at a precision amplifier for use with EKG's and other bio level electric signal recorders. Enjoy!
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- Music by Fran Blanche -
Fran on Twitter - https://twitter.com/contourcorsets
Fran's Science Blog - http://www.frantone.com/designwritings/design_writings.html
FranArt Website - http://www.contourcorsets.com
Join Team FranLab!!!! Become a patron and help support my YouTube Channel on Patreon: http://www.patreon.com/frantone
#franlab #lab #precision
- Music by Fran Blanche -
Fran on Twitter - https://twitter.com/contourcorsets
Fran's Science Blog - http://www.frantone.com/designwritings/design_writings.html
FranArt Website - http://www.contourcorsets.com
Wow! A Grass! Fantastic biomedical equipment. I spent thousands of hours listening to sapphire tipped Grass pens scratching on miles of fan folded paper.
nice knobs.
🔝👏✌💥👍
Top notch electronic parts and construction for the 1970's.
Nice to hack into a cool audio amp.
Especially with that chassis/case.
Pardon my total ignorance. Is this an audio device? OK, guess not.
Cool, old school stuff….
Fine. But what actually is it?
Seems pretty old fashioned for 1977, more like something you'd see from the late 50's or 60's.. Like the case, knobs and board were all crudly constructed in-house. Very strange.
Those RN60D resistors are Corning Glass Works precision military grade metal film resistors. The component catalog [sic] that I found these in doesn't specifically state that the body is glass substrate, just metal film, so I'm guessing they're ceramic like a normal metal film resistor.
I'll bet these cost a pretty penny back in '77! Those knobs (machined aluminium?) are great.
Happy New Year, Fran.
The knobs are impressive