Les événements du 15 septembre.
Le 15 septembre 1947: RCA lance la vente du tube à vide miniature à double triode #12AX7 ; il est toujours en production et est commercialisé sous le nom de #ECC83.
https://www.histoiredesinventions.com/15-septembre/

Θεριό" tube preamp (Therio). A modified Model-T 1st-gen amplifier, including the phase inverter and the NFL.
Additions:
- HI/LO gain switches for both channels
- Brite switch for the Normal channel
- Treble Bleed switch (3 positions) for the Normal channel
- Negative Feedback Loop selection switch (3 positions)

2 Outputs for power amps have been included. Each output has its own dedicated output level control.

The preamp is AC powered with either 230V or 120V (selectable through a switch on the back side).

custom built for @1000mods

(The galvanized steel angles shown in the photos were added for fixing the preamp on a rack shelf)

#dpFX #dpFXpedals #tubepreamp #modelT #sunnmodelt #sunnamps #sunnpreamp #tubeamp #tubeamplifier #12AX7 #boutiqueeffects #boutiqueamps #handmadeamps #handpainted #boutiquepedals #guitareffects #Therio #θεριό #θεριο #preamp

КТИΝОΣ tube preamp (ktinos). The circuit is the preamp of the Model-T 1st-gen amplifier including the phase inverter which is a crucial part of the original circuit and plays a significant role for gain, tone and presence control.

4 Outputs for power amps have been included, two for each output of the phase inverter (0 / 180). Each output has its own dedicated output level control.

The preamp is AC powered with either 230V or 120V, selectable through a switch on the back side.

#dpFX #dpFXpedals #tubepreamp #modelT #sunnmodelt #sunnamps #sunnpreamp #tubeamp #tubeamplifier #12AX7 #boutiqueeffects #boutiqueamps #handmadeamps #handpainted #boutiquepedals #guitareffects #ΚΤΗΝΟΣ #ktinos #preamp

Sunny day & announcement for my latest creation. "Model-T" tube preamp, including the phase inverter which is a crucial part of the original circuit and plays a significant role both for gain, tone and presence control.
-- 4 Outputs for power amps have been included, two for each output of the phase inverter (0 / 180). Each output has its own dedicated output level control.
-- The preamp is AC powered with either 230V or 120V.

#dpFX #dpFXpedals #tubepreamp #modelT #sunnmodelt #sunnamps #sunnpreamp #tubeamp #tubeamplifier #12AX7 #boutiqueeffects #boutiqueamps #handmadeamps #handpainted #boutiquepedals #guitareffects #ΚΤΗΝΟΣ #ktinos

Les événements du 15 septembre.
Le 15 septembre 1947: RCA lance la vente du tube à vide miniature à double triode #12AX7 ; il est toujours en production et est commercialisé sous le nom de #ECC83. …
https://www.histoiredesinventions.com/15-septembre/

#12AX7 #pinout

gain device if the day #12ax7