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Pioneer SX-1250 Voltage Stabilizer (AWR-106)

rcs16

Addicted Member
I am going to start a thread for an assembly which can be used for a link to the Mouser BOM and discussion about the assembly. Great place to discuss improvements like heatsinks for cooling devices better.

BOM link that I will maintain, suggestions welcome
https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=0713019803

I based it on a BOM that MTF started years ago, I have used it as a starting point

--- --- --- +13v regulator --- --- ---

Q9: 2SD325R-E to-220 bce 35v 3a 10w 40-320hfe 8mhz Q9 pwr +13v pass
512-KSC2073TU_Q to-220 bce 150v 1.5a 25w 4mhz 40-140hfe $0.53

Q10: 2SC945A-R to-92 ecb 50v .1a .25w 50-600hfe 250mhz Q10 darlington dvr
512-KSC945CYTA NPN 50V 0.15A 300 MHz 1:$0.251 10:$0.164
512-KSC2310YBU to-92 ecb 150v .05a .8w 100mhz 40-240hfe $0.11 ea
Q11: 2SC945A-R to-92 ecb 50v .1a .25w 50-600hfe 250mhz q11 feedback
512-KSC1845UBU (ln)to-92 ecb 120v .05a .5w 100mhz 150-800hfe $0.05 ea
D5: WZ-061 6.1v 0.5w zener diode
512-1N5234B Fairchild 6.2V, 0.5W Zener
D6: 1s2473
512-1N4148 Diodes - Small Signal 100V Io/200mA BULK
C15: 47 10V
647-UPW1A470MDD6 47 10V
C16: 22 10V
647-UPW1A220MDD 22 10V
C17: 220 16V
647-UPW1C221MPD 220 16v

Re: beefing things up, Q4 and Q8 come to mind... going from an itty bitty case to a larger case that can dissipate more heat.
*************
--- --- --- +25v regulator --- --- ---
Q4: 2SC1384-R to-92 ecb 50v 1a 1w 50-340hfe 200mhz Q4 +25v pos pass
512-KSC2682YSTU to-126 ecb 180v .1a 1.2/8w 200mhz 100-320hfe $0.31 ea

C9: 100 35V 647-UPW1H101MPD 100 50V

--- --- --- -25v regulator --- --- ---
Q8: 2SA684A-R to-92 ecb 50v 1a 1w 50-340hfe 200mhz Q8 -25v neg pass
512-KSA1142YSTU to-126 ecb 180v .1a 1.2/8w 200mhz 100-320hfe $0.28 ea

C10: 100 35V 647-UPW1H101MPD 100 50V

***********
--- --- --- +65v regulator --- --- ---

Q1: 2SD313P-E to-220 bce 60v 3a 30w 40-320hfe 5mhz Q1 pwr +65v pass
512-KSC2073TU_Q to-220 bce 150v 1.5a 25w 4mhz 40-140hfe $0.53

Q2: 2SC869-D to-92 bce 160v 30ma .2w 90hfe ?mhz Q2 darlington dvr
512-KSC2310YBU to-92 ecb 150v .05a .8w 100mhz 40-240hfe $0.11 ea

Q3: 2SC1318-R to-92 ecb 50v .5a .625w 85-340hfe 200mhz q3 feedback
512-KSC1845UBU (ln)to-92 ecb 120v .05a .5w 100mhz 150-800hfe $0.05 ea

D1: WZ-240 24v 0.5w zener diode
512-1N5252B Fairchild 24 V, 0.5W Zener

D2: 1s2473
512-1N4148 Diodes - Small Signal 100V Io/200mA BULK

C1: 220 80V 647-UPW2A221MHD 220 100V

C5: 47 35V 647-UPW1V470MED 47 35V

C7: 22 50V 647-UPW1H220MDD 22 50V

C11: 47 80V 647-UPW2A470MPD 47 100V

--- --- --- -65v regulator --- --- ---

Q5: 2SB507P-E to-220 bce 60v 3a 30w 40-320hfe 5mhz Q5 pwr -65v pass
512-KSA940TU_Q to-220 bce 150v 1.5a 25w 4mhz 40-140hfe $0.54

Q6: 2SA628A-D to-92 ecb 25v .1a .15w 55-800hfe 100mhz q6 darlington dvr
512-KSA910YSHTA to-92 ecb 150v .05a .8w 100mhz 40-240hfe $0.12 ea

Q7: 2SA720-R to-92 ecb 50v .5a .625w 85-340hfe 200mhz q7 feedback
512-KSA992FBU (ln)to-92 ecb 120v .05a .5w 100mhz 150-800hfe $0.05 ea

D3: WZ-240 24v 0.5w zener diode
512-1N5252B Fairchild 24 V, 0.5W Zener

D4: 1s2473
512-1N4148 Diodes - Small Signal 100V Io/200mA BULK

C2: 220 80V 647-UPW2A221MHD 220 100V

C6: 47 35V 647-UPW1V470MED 47 35V

C8: 22 50V 647-UPW1H220MDD 22 50V

C12: 47 80V 647-UPW2A470MPD 47 100V

--- --- --- 5.5v regulator --- --- ---

Q12: 2SD325R-E to-220 bce 35v 3a 10w 40-320hfe 8mhz Q12 pwr +5.5v pass
512-KSC2073TU_Q to-220 bce 150v 1.5a 25w 4mhz 40-140hfe $0.53
Q13: 2SC945A-R to-92 ecb 50v .1a .25w 50-600hfe 250mhz Q13 darlington dvr
512-KSC945CYTA NPN 50V 0.15A 300 MHz 1:$0.251 10:$0.164
512-KSC2310YBU to-92 ecb 150v .05a .8w 100mhz 40-240hfe $0.11 ea
C13: 1000 25V
647-TVX1E102MCD Note: axial capacitor 1000 25V
C18: 47 10V
647-UPW1A470MDD6 47 10V
C19: 47 10V
647-UPW1A470MDD6 47 10V
 
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