Jensen coaxial speaker in Jensen Imperial Cabinet

Vintage Asylum

Classic gear from yesteryear; vintage audio standing the test of time.

Hi, I just got a Jensen Imperial Cabinet with Jensen JAP-60 ST600 speaker in it. It is a 15 inch coaxial and the cabinet dates from around 1949-1950. The speaker date code either puts the speaker at 1948 or 1958.
My question has to do with the crossover. Does anyone know have a schematic? for this type or a similar type. The crossover has been modded to remove the HF attenuation which is not a bad thing. Also a transformer has been disconnected that would have been connected to a the crossover. There is a second larger transformer in the cabinet which I believe was used to change impedences for the speaker. The writing on the speaker indicates it has an impedence of 400-600 ohms. I put my ohmmeter on the speaker terminals and got a reading of 19 ohms.
The speaker sounds fine, I was just wondering how it was origially connected and what purpose the transformer served. There are only three caps in the crossover that I can see. There is a sealed box which I haven't bothered to open. Maybe better off leave the thing alone.
The case is an art deco design, walnut finish. It is large.
Anybody know anything about these oldies?
thx
David

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Topic - Jensen coaxial speaker in Jensen Imperial Cabinet - kintyre695 17:28:26 02/18/07 (9)

400-600 Ohm? - sser2 19:39:01 02/18/07 (8)

there are 2 sets of wires going into the speaker - kintyre695 06:39:13 02/19/07 (7)

Alnico magnet - kintyre695 06:48:40 02/19/07 (6)

Alnico? Is that you dad? - Al Nico 10:38:48 02/19/07 (0)

Transformers - Ron Oehlert 07:24:24 02/19/07 (4)

Re: Transformers - kintyre695 08:45:26 02/19/07 (3)

Re: Transformers - Ron Oehlert 09:00:45 02/19/07 (2)

Re: Transformers - kintyre695 09:19:32 02/19/07 (1)

found the answer I think in the manual and schematic for the G-610 - kintyre695 15:57:16 02/19/07 (0)

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