Prologue 2.0


PROJECT DETAILS

SPECIFICATIONS TUBE COMPLIMENT RATINGS
topology:  single-ended Class A driver: Raytheon 5842Q sound quality: TBD
rated output:  ±750mW output: Hytron 1626 fun factor:  8/10
input sensitivity:  ±1Vrms rectifier: 5Y3 hernia scale:  9/10

 

STATUS

WIP
 



UPDATES

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INTRODUCTION


 



SCHEMATICS

Slowly taking shape. Have to get back into the swing of things.

Signal section


The signal section (preliminary design)


 

Raw DC for filaments


The raw DC supply for each channel's filaments. There will be seperate regulators behind this for the 1626 (12V) and 5842 (6V). It's a little over-engineered for the filaments of these tubes, but I might have some PCB's made for the future DHT amps, so I'm thinking ahead a bit and standardizing things (for how long that lasts).

 

Voltage rgulators

Here is the regulator circuit for each filament I've added a soft-start section to slowly raise the voltage on the filament.

 

 

B+ supply


The B+ supplies for both tubes and channels.