More answers will be added on the making of Sleeping Satellite - Tasmin Archer, this time by co-producer Julian Mendelsohn

Life's a dream.


Producer Julian Mendelsohn agreed too to share the story of Sleeping Satelitte.


Soon a new answer will be here:


https://euroelectron.blogspot.com/2020/06/the-story-of-sleeping-satellite-tasmin.html

On judging the electron emission of an electron tube by simple means

At your risk.
Take all safety precautions.
Always use a suitable fuse in series with a battery for injury or fire hazard protection.


The simple idea is feeding the heater with heater voltage through a suitable fuse.


Then measuring with a high input impedance voltmeter the potential between reference cathode and grid which would be negative if cathode emits electrons. And the more electrons are emmited the more positive would the cathode be or less negative would the grid be.


Further reading:


Operating features of the Audion - E. H. Armstrong - 1914

Revisiting the 1H4 electron tube

At your risk.
Take all safety precautions.
Always use a suitable fuse in series with a battery in order to avoid injury or a fire hazard.


A used 1H4 Tung Sol electron tube was used on Hager octal basse. (See older posts).


1.5V from an alkaline battery is feeding the heaters.


When heaters get hot, the grid becomes negative since cathode has become positive by losing electrons to the electron cloud.


When a miniature 12V battery is connected to anode, anode current become about 50μA which may be plenty for a mic booster pre preamp. See previous posts and schematic of Pleiades V6.
And this is a condition of grid at space potential since nothing is connected to the grid.


Grid can be made less negative by a high megohm resistor to cathode or to anode.


So the anode current can become much greater if needed for perhaps lower noise or more bass.


But then extra bass to listener's brain should be reduced by connecting to a microphone a Pleiades (R,L) gentle slope high pass filter.

On how the verse chords of Sleeping Satellite - Tasmin Archer may be derived

Did we fly to the moon too soon...


Tasmin centers on note F. Effectively this is a pedal F existing on any chord of the verse.


Bass goes the F minor scale from tonic F in step down mode, ie F then E then D...


Since the key is F minor all B, E, A, D are flat.


So since bass goes down step by step and voice stays up at F we have the following bass code:


F
E9 with 3rd added (see Bach Bass Rules)
D7 (the 3rd above bass is already added by the note F)


So we have from the simple rule 1 3 5 7 9 11 13 15 above bass (we choose what notes sound correct or we like)
And by taking the correct flats we have:


F bass and F bA C which we may rearrange as Ab C F


So we have


F bass and Ab C F
Eb bass and G bB F
Db bass and Ab C F (C creates a major 7th)
etc



So effectively it reminds a lot the standard sequence described by Bach:
F
E6
D7


But the ingenious difference is that the second chord is created by repeating the note F thereby creating the interval of major 9th above bass.


Brilliant.


So in fact it is really the simple rule of avoiding cosectutive 5ths and using a step down bass. But implemented in a great way.

Reference

Bach Bass Rules - Bach, Niedt - PDF

I wash my clothes, I give myself 10 euros

A simple post written in ελληνική language on the previous post

Πλένω τα ρούχα μου, δίνω στον εαυτό μου 10 ευρώ

Καθαρίζω τον χώρο που μένω δίνω στον εαυτό μου 20 εαυτό.


Φροντίζω το σώμα μου δίνω στον εαυτό μου 50 ευρώ.


Φροντίζω το μυαλό μου και την ψυχή μου, δίνω στον εαυτό μου οςα ευρώ θελω.


Είμαι πλούσιος. Παντα ειμαςτε που τη στιγμη που γενιομαστε.

Ιςως δεν ειναι οτι ψάχνουμε εργασία για να περάσουμε καλα, ιςως ειναι οτι περνάμε καλα και μετα μπορει να έρθει και η εργασία

It may not be that we look for a job in order to have a good time.
It may be that we have a good time and then the job may come.


See also:
Enchiridion - Epictetous - PDF


Δειτε επισεις:
Εγχειριδιο - Επικτητος