• Anyone have an L14C2 phototransistor kicking around?

    From Steve Goldstein@21:1/5 to All on Wed May 1 12:53:24 2024
    I can find L14P2 (10us risetime) but not L14C2 (5us risetime). Does
    anyone have a spare kicking around? I'm in Massachusetts, USA.

    There are no capitalized pork products in my email address.

    Steve

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  • From john larkin@21:1/5 to sgoldHAM@alum.mit.edu on Wed May 1 12:56:14 2024
    On Wed, 01 May 2024 12:53:24 -0400, Steve Goldstein
    <sgoldHAM@alum.mit.edu> wrote:

    I can find L14P2 (10us risetime) but not L14C2 (5us risetime). Does
    anyone have a spare kicking around? I'm in Massachusetts, USA.

    There are no capitalized pork products in my email address.

    Steve

    ebay has some.

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  • From john larkin@21:1/5 to sgoldHAM@alum.mit.edu on Wed May 1 12:55:06 2024
    On Wed, 01 May 2024 12:53:24 -0400, Steve Goldstein
    <sgoldHAM@alum.mit.edu> wrote:

    I can find L14P2 (10us risetime) but not L14C2 (5us risetime). Does
    anyone have a spare kicking around? I'm in Massachusetts, USA.

    There are no capitalized pork products in my email address.

    Steve


    We have

    252-1002 OPT PIN PD 900NM 4MHZ TO92 DO NOT WASH! BPV22NF 60V
    VISHAY BPV22NF 0.90 0

    252-1003 OPT PIN PD 850NM 20NS TO92 DO NOT WASH! 32V 0.6A/W OSRAM
    SFH206K 0.77 1104

    252-1004 OPT PIN PD 850NM 5NS SOD123 DO NOT WASH! 20V 4PF 1X1 OSRAM SFH2400-Z 0.63 71

    252-1005 OPT PIN PD 405NM 7.5NS TO5 30V 0.23A/W FIRST SENSOPS13-5B-TO5 10.64 202

    252-1700 OPT PIN PD 850NM 5NS SOD123 DO NOT WASH! 20V 4PF 1X1 OSRAM SFH2400FA-Z 0.66 63

    If any would help.

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  • From Steve Goldstein@21:1/5 to john larkin on Thu May 2 09:23:23 2024
    On Wed, 01 May 2024 12:56:14 -0700, john larkin <jl@650pot.com> wrote:

    On Wed, 01 May 2024 12:53:24 -0400, Steve Goldstein
    <sgoldHAM@alum.mit.edu> wrote:

    I can find L14P2 (10us risetime) but not L14C2 (5us risetime). Does
    anyone have a spare kicking around? I'm in Massachusetts, USA.

    There are no capitalized pork products in my email address.

    Steve

    ebay has some.

    John,

    Thanks for listing your stock. I'm looking for an exact replacement
    as I have no information about the current unit and it's not a high
    enough priority for me to rip it apart and try to figure it out. I
    did see the units on ebay but the prices are more than I can to pay to
    add an auxiliary function to an already-working unit.

    I did pick up an L14P2 and will try that. It's for a camera
    shutter-speed tester and perhaps the difference in rise/fall won't
    matter.

    Steve

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  • From Steve Goldstein@21:1/5 to john larkin on Thu May 2 09:42:50 2024
    On Wed, 01 May 2024 12:56:14 -0700, john larkin <jl@650pot.com> wrote:

    On Wed, 01 May 2024 12:53:24 -0400, Steve Goldstein
    <sgoldHAM@alum.mit.edu> wrote:

    I can find L14P2 (10us risetime) but not L14C2 (5us risetime). Does
    anyone have a spare kicking around? I'm in Massachusetts, USA.

    There are no capitalized pork products in my email address.

    Steve

    ebay has some.

    John,

    Thanks for posting your parts availability. I'll have a look through
    and compare datasheets to the L14C2 to see if any of them might be
    appropriate.

    This is for an old (1980s, I guess) camera shutter-speed tester to
    which I'd like to add a remote sensor to make it easier to use for
    some types of camera equipment. I know nothing about the unit's
    operation and don't want to rip apart my working one (it's held
    together internall with hot glue) to figure out how it works. All I
    know is that someone else used an L14C2 for this modification some
    years ago, it worked, and he documented it online.

    The L14C2s on ebay are quite pricey. A (much cheaper) L14P2 arrived
    yesterday, perhaps the difference in rise/fall won't matter.

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  • From John Larkin@21:1/5 to sgoldHAM@alum.mit.edu on Thu May 2 07:18:24 2024
    On Thu, 02 May 2024 09:42:50 -0400, Steve Goldstein
    <sgoldHAM@alum.mit.edu> wrote:

    On Wed, 01 May 2024 12:56:14 -0700, john larkin <jl@650pot.com> wrote:

    On Wed, 01 May 2024 12:53:24 -0400, Steve Goldstein
    <sgoldHAM@alum.mit.edu> wrote:

    I can find L14P2 (10us risetime) but not L14C2 (5us risetime). Does >>>anyone have a spare kicking around? I'm in Massachusetts, USA.

    There are no capitalized pork products in my email address.

    Steve

    ebay has some.

    John,

    Thanks for posting your parts availability. I'll have a look through
    and compare datasheets to the L14C2 to see if any of them might be >appropriate.

    This is for an old (1980s, I guess) camera shutter-speed tester to
    which I'd like to add a remote sensor to make it easier to use for
    some types of camera equipment. I know nothing about the unit's
    operation and don't want to rip apart my working one (it's held
    together internall with hot glue) to figure out how it works. All I
    know is that someone else used an L14C2 for this modification some
    years ago, it worked, and he documented it online.

    The L14C2s on ebay are quite pricey. A (much cheaper) L14P2 arrived >yesterday, perhaps the difference in rise/fall won't matter.

    Shutter speeds are, what, milliseconds?

    If you don't need the TO5 package, plastic parts are cheap. Mouser has
    hundreds in the 30 cent range.

    Better yet, design something new.

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