Random Technical Picture Upload Thread

[mhardy6647]

source: https://www.worldradiohistory.com/Archive-Catalogs/Heathkit-Catalogs/Heathkit-1965-800-55.pdf pg. 13

"pure, unmodified response"

 

[amirm]

 

[amirm]

 

[xanalog]

Once upon a time, this was probably as "technical" as it got.
Someone put it out to the pasture alley, 2 weeks ago.
Then, someone else put this book on it, 2 days ago.
It breaks my heart, but they shoot horses for less!

ADD: I thought to strip the keys of their ivory content but that would be unethical or a felony.

 

[xanalog]

 

[Balle Clorin]

 

[Balle Clorin]

 

[Balle Clorin]

 

[Balle Clorin]

 

[xanalog]

Radio... Tape... Spot... Oh, my!
Not Kansas... but Quincy!

...Gates reported selling 55 units at the [1959] show for $850 each (about $9,300 in 2025).
By 1961, Gates claimed in a trade magazine ad that 500 stations were using the ST-101.
The 1962 Gates General Catalog described the ST-101 as storing 101 announcements, each up to 90 seconds long, on a 13-inch-wide magnetic tape.
An index lever was used to select the desired cut and playback could then be started.
When the 90-second cut finished, a photoelectric cell reversed the motor, rewinding the tape in 22 seconds.
Individual tracks could be erased and re-recorded.
The ST-101 had:
*A specified tape speed of 5-1/4 inches per second,
*A frequency response of 50Hz–8kHz ±2dB,
*An SNR of 45dB or better,
*A distortion below 2%, and
*A wow & flutter below 0.35%.
It used five vacuum tubes.

WorldRadioHistory: Radio Music Electronics Publications ALL FREE

WorldRadioHistory: Thousands of Radio Music Electronics Publications ALL FREE

www.worldradiohistory.com

Oldradio.com - Radio History On The Web

www.oldradio.com - The Broadcast Archive - Radio History On The Web

oldradio.com

 

[Balle Clorin]

 

[Chr1]

 

[EERecordist]

The Nakagin Capsule Tower in Tokyo by architect Kisho Kurokawa built in 1972 is being torn down. The modules were supposed to be replaceable, but never were because they could not be individually replaced.

They were micro apartments with a built in stereo:

More https://www.archdaily.com/110745/ad-classics-nakagin-capsule-tower-kisho-kurokawa

 

[Balle Clorin]

 

[Crook]

 

[xanalog]

This is not my 'hat size':

They moved 'my' goal post and I am not happy!
I blew a few MOV devices, when I recently learned that:

My HP-11C barfs out "Error 0".

 

[Balle Clorin]

Resonance cart arm

 

[Azrael]

View attachment 446365

Is that a stellarator?

 

[Balle Clorin]

 

[xanalog]

Is that a stellarator?

More like a vaporator.
At first sight, it looked like a new, hybrid-design for a sneaker, which converts to a stationary exercise machine.