CJ Well-known member GDIY Supporter Joined Jun 3, 2004 Messages 15,731 Location California Oct 16, 2017 #1 this thing sounds great, pricey like most of their stuff, maybe about a grand, Attachments mmr.jpg 121.3 KB · Views: 20
CJ Well-known member GDIY Supporter Joined Jun 3, 2004 Messages 15,731 Location California Oct 16, 2017 #2 the works in a drawer, 10W/25W sw changes from regular mode to triode mode, about 398 on the plates, 325 screens, minus 13 bias, then 398 plate/screens and minus 17 to keep the tubes from melting in triode, Attachments mm1.jpg 175.1 KB · Views: 32
the works in a drawer, 10W/25W sw changes from regular mode to triode mode, about 398 on the plates, 325 screens, minus 13 bias, then 398 plate/screens and minus 17 to keep the tubes from melting in triode,
CJ Well-known member GDIY Supporter Joined Jun 3, 2004 Messages 15,731 Location California Oct 16, 2017 #3 backside, kind of a pain to work on, would not be happy as a tech there, Attachments mm2.jpg 174.9 KB · Views: 28
CJ Well-known member GDIY Supporter Joined Jun 3, 2004 Messages 15,731 Location California Oct 16, 2017 #4 disconnect plate leads to test OPT pri ind. 24 int locks, Attachments mm3.jpg 187.1 KB · Views: 26
CJ Well-known member GDIY Supporter Joined Jun 3, 2004 Messages 15,731 Location California Oct 16, 2017 #5 pop bells to get structure, could be nickel, 625 EI, sq stack with a shim, Lap 1 280 H pri ind. (120 @ 60 Hz) DCR high at 442, # 37 AWG P S P S P 29:1 8 ohms and 40.67:1 4 ohms, leverage = 847:1 = 6.77 K : 8 and 1654:1 = 6.6k : 4 ohms, Attachments x1.jpg 169.2 KB · Views: 14
pop bells to get structure, could be nickel, 625 EI, sq stack with a shim, Lap 1 280 H pri ind. (120 @ 60 Hz) DCR high at 442, # 37 AWG P S P S P 29:1 8 ohms and 40.67:1 4 ohms, leverage = 847:1 = 6.77 K : 8 and 1654:1 = 6.6k : 4 ohms,
CJ Well-known member GDIY Supporter Joined Jun 3, 2004 Messages 15,731 Location California Oct 16, 2017 #6 0.1" shim and 4 pri beakouts Attachments x2.jpg 169.2 KB · Views: 12
CJ Well-known member GDIY Supporter Joined Jun 3, 2004 Messages 15,731 Location California Oct 17, 2017 #7 OPT print from theory, not tear down. 25 watts is a stretch til you get past 60 Hz, otherwise saturation, might do 10 watts at 20 Hz, we need 406 V-rms P-P at these ratios to get 25 W. B+ is 400. need some sort of inductive kick, Attachments Mesa Mini OPT.png 58.4 KB · Views: 20
OPT print from theory, not tear down. 25 watts is a stretch til you get past 60 Hz, otherwise saturation, might do 10 watts at 20 Hz, we need 406 V-rms P-P at these ratios to get 25 W. B+ is 400. need some sort of inductive kick,
