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SissySIT - kit packages

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Zen Mod

Zen Mod

Official Court Jester
Joined 2003
zenmod.in.rs/
Paid Member
Presenting thread HERE


Schematic and pcb screenshot post #1 , plenty o pictures after .

Tips and Tricks thread HERE

Reading entire thread is advisable , same as inquiring any technical question there : Be sure that you are aware of all things electrical and mechanical !

THF51-S still available on fleabay , watanabetomoaki confirmed seller , also pras1701 - being member here and you have some discount vs. fleabay price

instead , pretty much sure that 2SK180 will work too

Pcbs are made for UMS , mounting directly to heatsink (will show you how).

NB that pcbs are common for SissySIT And Babelfish M25 amps , differences being really minor , except upper output device .

Do not hurry - read , think , ask and only when you feel that you want it and can make it , proceed ...... advice which I'm finding applicable on practically anything ;) .

For anything else , write either here , send PM or directly to >zenmodiyaudio@gmail.com<

Prices are mostly dictated with small scale nature of operation (as always is case) and time/work involved in matching and soldering little buggers.

For ordering , contact me at above written e-mail addy .





Kit options :

1.
- LCH pcb ,
- RCH pcb ,
- all smd buffer JFets presoldered ,
- Hall current sensing chips presoldered ,
- surrounding smd caps presoldered ,
- 4pcs of 1uF MKC caps (for critical signal position) enclosed.

Full price , including Paypal fee and P&P for registered shipping all around the Globe - 130E

2.
- LCH pcb ,
- RCH pcb ,
- all smd buffer JFets presoldered ,
- Hall current sensing chips presoldered ,
- surrounding smd caps presoldered ,
- 4pcs of 1uF MKC caps (for critical signal position) enclosed.
-all multiturn trimpots
-output P channel mosfets , 2 pcs , most likely Infineon IRFP9140
-voltage regs
-cascode bjts
-optocouplers
-all electrolytic caps (all Panasonics ,except Elna Silmic II for 1 signal route position)
-one-pin sockets for special resistor positions
-all (MF 600mW) resistors
-small u22 caps for Borbely WC follower , if you want it for more sugar

to recapitulate - everything what goes on pcbs , excluding signal xformers and pcb/mosfet mounting screws/nuts/washers and , of course , excluding THF51-S

Full price , including Paypal fee and P&P for registered shipping all around the Globe - 175E



If I have everything in drawers in moment of order , can ship in 3-5 days ;
If I don't have any of normal parts in drawer , shipping could be delayed up to 3 days;
If I don't have pcbs in drawer , shipping could be delayed up to 7 days;
If I don't have most critical part for getting in my neck of wood - ACS Hall chips , shipping could be delayed up to 3 weeks.
 
Last edited:
Zen Mod

Zen Mod

Official Court Jester
Joined 2003
zenmod.in.rs/
Paid Member
Finally getting all parts in quantity during next week .

Well, in my neck of wood , getting ACS Hall chips promptly is sorta complicated .... in fact just slow , not complicated

Anyway , during next week I'm going to visit my Eywa ....... and parts will be piled up while I'm away

So , next weekend (not this one , logically) BigBadaBoom soldering action - ZM against all those little Bugs, Day of Triffids ..... JFet Snake Attack ..... whatever

Then packing and shipping .... of course - First paid - First served
 
K

kannan_s

Member
Joined 2009
Any idea of the power supply requirements - possible PCB's ? Also any guide on assembling powering the kit etc - i have the SIT/Mosfets. Ordered Cinemag transformer and waiting for the kit. I have to order the Power supply- have some heat sinks for T-Bed testing before placing it in DIYAudio Chassis.
kannan
 
Zen Mod

Zen Mod

Official Court Jester
Joined 2003
zenmod.in.rs/
Paid Member
all tech info is in thread Ben linked to

PSU is , say , regular FW format - xformer(s) with 2x 18V secondaries , resulting in around 22V5dc rails

either one 500VA for common PSU or - better - one of 250VA per channel

I made (at last) sissy nice cap bank pcbs , with place for 4pcs of 35mm Dia/10mm pin distance caps , CRC per rail , along with place for LED resistor and NTC going from GND to chassis

no need for rectifiers on board , I'm happy with Papa's approach - 2 metal cased diode bridges per xformer , bolted wherever I choose to

will have first of them in few days and put few pics here
 
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