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Pioneer SX-1250 Voltage Stabilizer (AWR-106)

Discussion in 'Pioneer Audio' started by rcs16, Oct 11, 2018.

  1. rcs16

    rcs16 Super Member

    Messages:
    3,893
    Location:
    Baldwin, Ontario, Canada
    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
     
    Last edited: Oct 11, 2018
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