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Thread: Schematic Request - 1952 Danelectro Twin Twelve Series C

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    Member parentheticalfact's Avatar
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    Schematic Request - 1952 Danelectro Twin Twelve Series C

    Looking for a diagram for this oddball. Someone has been in here before, I would like to verify the previous tech put everything as it should be before I go much further on it. Some photos included. Tube complimen is 6SJ7, 6SN7, 4X 6L6, 5U4, 12SJ7.

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    Supporting Member Jazz P Bass's Avatar
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    You are not the first soul looking for that schematic.

    As far as I know, it has never surfaced.

    The Twin 12 had two output transformers, didn't it?

    This Silvertone 1474 may help with that:

    Silvertone 1474.pdf

    Here is the 1396. The preamp tubes are 12AX7

    Silvertone-58-1396.pdf

    Here is a link of other Silvertone amps.
    You may find a preamp that is similar.
    Silvertone Schematics - Tube amp Schematics

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    Lifetime Member Enzo's Avatar
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    Silvertone 1485 too

    Yours may have octal tubes, but I bet the circuits are real similar. Those amps were never challenging designs, just basics.

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    Education is what you're left with after you have forgotten what you have learned.

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    Member parentheticalfact's Avatar
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    It does have octal tubes. They unfortunately aren't terribly similar and the carbon comp resistors have deteriorated to being mostly unidentifiable. The goal is to make it as close to a stock circuit as possible. Perhaps it won't be possible to verify on this amp. The later models seem to have many differences other than preamp tube type.

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    Member parentheticalfact's Avatar
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    Quote Originally Posted by Jazz P Bass View Post
    You are not the first soul looking for that schematic.

    As far as I know, it has never surfaced.

    The Twin 12 had two output transformers, didn't it?

    This Silvertone 1474 may help with that:

    Silvertone 1474.pdf

    Here is the 1396. The preamp tubes are 12AX7

    Silvertone-58-1396.pdf

    Here is a link of other Silvertone amps.
    You may find a preamp that is similar.
    Silvertone Schematics - Tube amp Schematics
    I appreciate it! It is unfortunately fairly different. 2 output transformers, one power transformer, 2 pairs of 6L6 output tubes. Another "cool when they work" amp.

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    Supporting Member mozz's Avatar
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    Chances are the 100uf/350v is not an original value for whatever that cap is replacing.

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    "Thermionic Apocalypse" -JT nickb's Avatar
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    I suggest you sit down and trace it out. You'll have it done in an hour or so. Measure the values that you are not sure of. Post the result and there is a good chance we may help to suggestions corrections or different valves where they are in doubt, if needed.

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    Experience is something you get, just after you really needed it.

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