Lazy Singing Bush

[Zen Mod]

whoa!

this is better than watching washing machine!!

 

[codyt]

Just slightly better

 

[Vunce]

That’s fancy Cody. 🤣

 

[Zen Mod]

Don't mock me, I'm happy now that we have ( in our house) top loader; still happens when I'm at my Mom's - whenever I see her front-loader working, 30min is gone somewhere

 

[Sadface]

I was thinking about using thermal glue between the two heat sinks but need the chassis to check how tight the two heat sinks sit together.

 

[MEPER]

Yes, the idea was "shut down" by ZM........so I ended up using the 10mm alu panel heat spreader solution.......

 

[sov]

One PSU is up with 72V unloaded. Is this adequate or to much when loaded? PSU is CLC from 50V secondaries.

 

[Zen Mod]

you're good

it'll go down to approx. AC*1.25, when loaded

 

[Zen Mod]

...... not that 72Vdc is critical, in any way

 

[sov]

I will post my progress🙂

 

[Zen Mod]

 

[andynor]

72Vdc is for weaklingzezzez. What’s wrong with 240Vac?

 

[Zen Mod]

'nuttin'

 

[sov]

😉

 

[sov]

One LSB is almost ready. I must order a shunt resistor before I try to hold the magic inside. 🙂

Happy new one to all.

 

[Zen Mod]

 

[sov]

Two monos is ready for biasing. PSU dropped to -68V and before biasing output node is -32V. Still OK with 68V from PSU?

 

[Zen Mod]

bias output node approx at Rail/2

 

[sov]

Max volt over odd R5-7-9 (0,4ohm) MOS source side resistors is 0,88V. Time to change MU-R1?

 

[Zen Mod]

clarify/confirm which value of resistors you have there, confirm is it schm from page 1, say what Iq you want to set

if you have sum value of 0R4 of 10 resistors group, just say yes

if you want more Iq - go back with 10K trimpot, put whatever you have instead of 8K2 - say 3K3 or 3K9

then fiddle with trimpot(s) again