Vertical cut disc records - a simple & cheap inverter to eliminate unwanted noise.

This video is first, an ‘outreach’ from a recent video on playing early vertically cut disc recordings.
Second, it’s a ‘standalone’ video on using a easy & cheap technique
for making simple circuits from common components - transistors, resistors, capacitors - little ‘weekend projects’ that can be entertaining, as well as instructive.
In this video, we assemble a very simple single transistor circuit with only seven components, that will help us to get much improved sound when playing old vertically-cut disc records.
The parent video to this one may also be of interest to you, & is to be found at: • Vertical cut disc reco...

[@yopascualin]

Thank you Norman!

[@martinda7446]

Norman, it could possibly be a bit after your time, but sometime in the 1970s Veroboard became popular. It does essentially the same as your project board, but maybe with a neater, more compact, ready made solution. I know it has been around for at least 50 years... I am surprised you used that modern 'transistor' though.
PS. I was only joking. That was brilliant.
Anyone interested/new to audio should look up common mode noise and differential noise. Also think how phase errors could upset the sound? Where phase can be adjusted and what bits are critical for correct phasing?

[@PA2OLD]

Hi Norman, I remember that I connected the pick up cartridge differently for mono vertically pressed gramophone records, I am looking for the website.
www.tsf36.fr/erepro2.htm

[@peterharper5574]

Norman, great video. Can I question the polarity of the input capacitor? Assuming that the input is at 0V potential and the Base of the transistor Q1 is positive, then the capacitor is reversed?