Inductance behaving relativistically?

We know from Einstein's relativity theory that mass becomes infinite at speed of light. Mechanical force equals mass times rate of change of speed. Electrical force ie voltage equals inductance times rate of change of current. So inductance is analogous to mass. Does inductance become infinite when electrons travel at speed of light? Does inductance change with speed of electrons?

Recording a musical idea on a phone answering machine with microcassette?

Just calling oneself. "Hello, please record your demo after the tone." It can always be ready. And it's analog, electron orbits recorded on magnetic tape.

If it sounds amazing acousticaly it can record greatly

If it sounds just OK, chances are that it can record awfully as the microphone does not have a brain. See previous posts on recording outdoors on a square, a forest, a balcony, indoor ordinary living room (worst case?), block of flats stairway.

Nearby to G, greengrocer Emily is selling Easter eggs, G...., Beans, Dafne leafs, F....,A , Cucumbers

Continued example from previous today's post on music composing game

At the worst moment, keeping calm, taking one more step, something great can happen

Recording female voice on a stairway for a great reverb

Vicky's soft voice - stairway - Revox M3500 - Bst P10D - Pioneer CT-443 - TDK SAX 21032119

The dodgy greengrocer and the composer client

A game for kids teaching the to compose music. All we need to know is the 1st bass note. For this defines the musical scale or key ie the set of the allowed 7 notes. For example the song To Megalo Mystiko Mou - Kapnisis: 1st bass is C, scale is C minor ie the set with elements the notes C, D , bE, F , G , bA , bB. Music even at its most involved moments uses the simple rule 1, 3, 5, 7, 9, 11, 13 intervals or notes with respect to bass. For example on the song above when bass is G, the harmony chord is G bB D F, (all these notes are played at a nearby moment in time. Therefore greengrocer named G is selling Gabbages, Brocoli, D....., Flowers, A...., C....., E..... The buyer ie the composer decides which ones to buy and use in the composition with aesthetics as a guide. (Public domain, game conceived while playing with fun the piano with Vicky and writing in her notebook.

Did you know there are many partner positions 2 transistors can have in order to make a Darlington pair?

See Sidney Darlington patent.

www.smartkit.gr

Many of their kits are with descrete transistors in class A operation. For example the Smartkit 1010 5 input mixer (adder), or the 1024 2 transistor microphone preamplifier. Just visited the Smartkit shop in Athens. Alexandros who is very helpful told me that Quasar E lectronics UK are their best customers, selling their kits. They kindly sent the 1010 5 input mixer instructions and schematic so that a teen atempt on a very nice beige, brown small console Retex box can be repaired.

Making a microphone preamplifier with just one Darlington transistor pair?

At your risk. For example: Mic - input transformer - coupling capacitor - base of Darlington pair inside an XLR plug! - bias resistor from Collector to Base - Emitter to ground - output transformer primary from Collector - 9V battery supply with safety fuse from + to output transformer other primary terminal - preamplifier output from output transformer secondary winding. Pleiades circuit diagram or schematic drawing in pink color, date time code 21031716. Possible implementation inside or on top of a hammond orange octagonal box. Provision for a Pleiades filter at the mic XLR terminals with a passive mic XLR filtered output before or after the input transformer. Pleiades filter possibly made with a tapped inductor in series with a variable resistor and the resultant in parallel with mic. Using a BC109 with BC108 pair or a 549 with a 548?

Using Neutrik XLR connectors for pluging in transistors (like pluging in electron tubes)

For example connecting pin X to emmiter, pin L to base, pin R to collector. The transistor can be housed inside an XLR cable connector for easy plugging in to an XLR chassis connector. Using undustrial 3 or multi pin connectors too, for transistors, low voltage electron tube circuits, signal transformers etc?

Monte Carlo - Xaxakes

https://m.youtube.com/watch?v=fC3JbQAeC0A

The musial note at one line below clef G or one line above clef F is the same and it is piano's middle C or C4

Prelude 6 in D minor - J.S. Bach played at a slow tempo, sustain pedal

At Vicky's sugestion, it sounds amazing.

To Megalo Mystiko Mou - Kapnisis, Xomata

https://m.youtube.com/watch?v=EBNGNq-2718

Backing Vocals on Sleeping Satellite -Tasmin Archer (extended version)

C and F and A flat then B flat and E flat and F then C and F and G then C and F and G.