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September 30th, 2004, 11:34 PM
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#1 (permalink) |
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Tele-Afflicted
Join Date: Sep 2003
Location: Hollywood, CA
Posts: 1,882
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Vintage amp tube socket speaker plugs - Pin 1 or 2 positive?
Working on a 1965 Danelectro DM25 amp. The head has an 8-pin tube socket out to the speaker in a separate cab. Pins 1 and 2 are the speaker wire, 4 and 5 are jumpered. The speaker is a 1965 Jensen C12Q.
Anyone know which Pin goes to the positive speaker terminal? |
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October 1st, 2004, 04:03 AM
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#2 (permalink) |
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Tele-Afflicted
Join Date: Sep 2003
Location: Hollywood, CA
Posts: 1,882
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Well, I have searched everywhere for this info tonight to no avail.
I just wired it Pin 2 to the positive terminal on the speaker, which I hope is the left terminal on a vintage C12Q :? as it is the one with the white lead inside the basket. I did this because the old stranded lamp cord these things were wired with had the ridged side coming out of Pin 2 on the plug. Dunno... |
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October 2nd, 2004, 10:32 PM
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#3 (permalink) |
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Tele-Afflicted
Join Date: Sep 2003
Location: Hollywood, CA
Posts: 1,882
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Okay, if anyone ever needs this info:
On a tube socket speaker out Pin 1 is common ground and Pin 2 is positive. The jumpered pins shut down the amp if the speaker load is disconnected. This learned from a response in the Weber forums. |
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