Do FIlter Cap Values Matter in a Marshall? IN DEPTH MEASUREMENTS and TONES!!

Continuing to fine tune my own 1983 JCM800 2204 1987 50w. Today we are experimenting with power supply filtering via power tube screen supply node and filter cap. A/B test of a 50+50uF can cap for the screens and phase inverter up against a 16+16. A bit of theory and some investigations at the bench to objectively observe any difference. Lots of tones too with the 16+16uF cap in place. https://headfirstamplification.com   / headfirst.amplification     / 225949122469679     / headfirst_amplification   [email protected] Signal path: Guitar - Amp - Suhr RL - Ownhammer GNR IR's - Apollo Twin - Logic Pro 0:00 Play in - 16+16uF 1:07 Intro 3:45 50uF vs. 16uA A/B test 4:32 Feel - my thoughts 5:43 Schematic - filter nodes 10:45 B+ supply line 13:08 Filter caps as low pass filters - the math 16:04 More tones 16:43 At the bench - 50uF measurements 19:58 Time lapse cap change 20:18 At the bench - 16uF measurements 21:49 Comparing the 50 vs. 16uF scope trace 25:10 Play out