Friday 28 June 2019

Spaceman Effects Mercury IV




11 comments:

  1. Hi! Thinking of giving this a go. It's listed as verified but I don't see any comments. Did you build it yourself?

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    Replies
    1. I didn't verify this one but brazdj at Tagboard Fx forum did.

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  2. Also verified now by me. :O)

    Got courage and throw myself on the thing. Spot on layout, awesome sound. Used stock resistors, and the transistors as follows:
    - AC132 for the germanium.
    - 2N5457 as stock;
    - 2N5485 as substitute for 2n5484;
    - J112 as substitute for J102;
    - BS 170 as stock;
    - 2N7000 as substitute for MPF201 (tried a bunch of jfets - 2N5458, 2SK117, 2SK30 and BF245A, all worked nice, but ended with the mosfet, as MPF201 is a mosfet- depletion. So while I don't get one, it'll stay with the 2N7000. From the jfets, the one I like most is he BF245; people who want more gain better bet on the 2sk117).

    So, thanks another million, mate! Very happy with the conquest!

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  3. Ah, forget to point: worked perfect with L78L05.

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  4. Only one question concerning this layout: On the upper right side, is the numbering of "Switch B 4/6" correct? Shouldn't it be "Switch B 3/6"?

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  5. Replies
    1. I'll take a look win a couple of days when I'm off from work.

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    2. Thanks, that would be great. :-)

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    3. You were right! Switch connection moved from lug 4 to lug 3.

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  6. Is everthing else alright? I can't figure out, why this one isn't working for me.

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    Replies
    1. Yes, everything else looks correct. You can meassure the transistor voltages and compare them to the listed voltages in the schematic.
      https://drive.google.com/file/d/1MVhrW5txfOhU7fmQl5ay7kUw8lpkEj9u/view

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