SissySIT R.3

[Zen Mod]

 

[Zen Mod]

Swap the position, or swap the amps out for another Papa/ZM project?

That XA252 SIT looks like it'd be a nice complement to the Sissy after I've entered a diabetic coma with all the sugar it gives to me...

No doubt there are some top secret SIT projects on Mighty ZM's bench, just waiting to come play?

I already have spare pair of 2SK180 & 182... I'm wondering if I should acquire more THF-51 while I still can lol

swap position of pcbs, to widen your smile while you're asleep

secret ....... naah ...... I'm creatively constipated of lately, no new amp 3 weeks already ....... ZM is obviously one hit wonder

 

[nicoch58]

uff we are lucky..... buffer overfloow with all that amp!

 

[nicoch58]

well ZM 5 WATT time ?
as I like 5w of acamini what I can do with pair of sjep120r100 ,pair LU104 .pair sony ke p ad pair of sony ke n ?

 

[Zen Mod]

make ACA with sjeps (even better - make Egocentric ACA)

small LuDEF P with LU

ke-p and ke-n are rank/series of TO3 Sonys?

make any of Pa's, if you can urge few pcbs with his signature on it

 

[nicoch58]

Woow ZM small LuDEF P with LU sound good , min power ? psu volt ?
like your Egocentric ACA !
vfet rank
I like one pbc at last with ZM signature on it
btw suggestion for a nice 1/2 watt for my destop pc ? all day power on small fullrange in ob

 

[Zen Mod]

say that you can make LuDEF P with 15Vdc rails , Iq 1A ; few minor changes in resistor values

1/2W ........ search for SPUD amps

at least that can move ya from this Beancounter's realm, Weakling parts with no Vacuum in them

 

[randytsuch]

make ACA with sjeps (even better - make Egocentric ACA)

small LuDEF P with LU

ke-p and ke-n are rank/series of TO3 Sonys?

make any of Pa's, if you can urge few pcbs with his signature on it

What is a ACA with sjeps?

I have a ACA that the Sissysit I'm slowly building will replace.

Randy

 

[Zen Mod]

ACA with Semosouth SJEP in lower position

 

[randytsuch]

ACA with Semosouth SJEP in lower position

So I guess I don't need to worry about it because I don't think I can get my hands on a Semismith part.

Randy

 

[sp33ls]

So I guess I don't need to worry about it because I don't think I can get my hands on a SemiSouth part.

I don't think you'll worry about it all after you have your Sissies up and running.

 

[Zen Mod]

 

[randytsuch]

Drilled and tapped holes in both heatsinks, here is one side. And all the screws fit

So slowly getting there. Need to buy a few odds and ends and then finish my softstart board and power supply so I can power this puppy up.

 

[Zen Mod]

count on rising base plate (if you have it) for 8-10mm, so you can route mains wires underneath

lip up

how to - on any of my builds pics

longer M4 screws for base, risers - usually 3 pcs of M5 nuts are enough as riser, on each M4 screw before putting da plate in place

 

[randytsuch]

count on rising base plate (if you have it) for 8-10mm, so you can route mains wires underneath

lip up

how to - on any of my builds pics

longer M4 screws for base, risers - usually 3 pcs of M5 nuts are enough as riser, on each M4 screw before putting da plate in place

Thanks, I have been looking at pics of your builds and noticed you put the plate lip up and used nuts to space it up.

Since I'm in the US, using US size screws, 4-40 and 6-32 size for mounting the PWBs and SITs. Planning to use a #8 size for mounting the plate.

Randy

 

[Vunce]

Hi Randy,

I use this site for all my hardware needs. I like to keep all fasteners consistent to one type metric or imperial for builds.
https://monsterbolts.com/

 

[glenv6]

Another SissySIT R.3 coming to life. The boards are done and I have PSU parts and Modushop monoblocks on order...

 

[Zen Mod]

don't forget to remove jumpers and put them back only after setting input buffers

 

[glenv6]

don't forget to remove jumpers and put them back only after setting input buffers

Got it, thanks! I left them on so I wouldn’t lose them.

 

[Zen Mod]

pull them, snap on just one (X side) pin, so V pin left free for measurement