Electronics > Beginners

Analog Delay

<< < (3/5) > >>

Yansi:

--- Quote from: David Hess on May 06, 2019, 02:46:00 am ---
--- Quote from: Yansi on May 05, 2019, 01:18:38 pm ---...

Small delays for low and audio frequency signal: allpass filters (just a fraction of signal period)

Anything above that needs a kind of memory array. There are various type of such memory, including magnetic tape,  mechanical (spring reverbs), up to the signal sampling ones.
--- End quote ---

Mechanical transmission lines using springs with transducers at each end also work as audio delay lines.

--- End quote ---

???

T3sl4co1l:
Funny, I skimmed over that initially, too.  Then I re-read the post and realized it was included.  Go figure!

Tim

Yansi:
At least I have learned that also plate reverbs exist. I've never heard of them round here in the dark corners of the former iron curtain.

TimFox:
With respect to analog delay lines:  I remember a feature in Electronic Design, sometime around 1990?, where Plessey had made a fast-sampling bucket-brigade device to allow rapid signal capture before feeding the samples into a slower ADC for DSO application.  The bucket-brigade was quite long, and didn't fit into a roughly square form factor on the chip, so it was spread out as a Z shape, with wasted space inside the Z.  The designer had inserted a small steam locomotive shape (from his kid's coloring book) into the gap, since the line looked much like rails separated by ties (sleepers).  Tektronix was famous for illuminating their schematics, but this is the only such artistic effect of which I am aware in a monolithic device.

chemelec:
I have a 15 inch long Spring Delay.
Been laying on my shelf for over 15 years, and I have never used it.
Consists of 3 parallel Springs with Send and Receive coils.
Soon to go into the Garbage Can.

Navigation

[0] Message Index

[#] Next page

[*] Previous page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod