ba662 tall clown arrives

clown comparison

Having given up trying to hand solder the SOT-363 bits on the OpenMusicLabs BA662 clone/clown, here’s a version with BCM847DS/BCM857DS transistors instead of the dust-like PMP4201/5201.

No idea if it’ll work. The specs look almost identical, apart from a tighter hfe tolerance on the smaller device which I don’t think will matter anyway.

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4 comments

  1. 23rd March 2017moosteak says:

    How did you get on with the tall clown?

  2. 23rd March 2017ua726 says:

    Think it works but I’ve cleverly managed to break my collarbone in the meantime. When I’m properly back to two arms I’ll have more of a chance.

  3. 20th September 2022Eman says:

    Are the PMP4201/5201 that are used on the Open Music Labs 662 clone the ones that are marked .S7T & .S9T on the chip?

  4. 20th September 2022ua726 says:

    Yep

    OML BA662 close-up

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