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Hoffman Amps Forum image Author Topic: phonola model 2760 console stereo  (Read 2848 times)

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Offline jcm-jmp

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phonola model 2760 console stereo
« on: June 23, 2011, 09:10:11 am »
hey guys
i have an old phonola model 2760 that i would like to use as an amp.
It works fine but i pulled the tubes in it a year or so ago and dont remember the tube types or locations. can anyone help with this,
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Offline PRR

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Re: phonola model 2760 console stereo
« Reply #1 on: June 23, 2011, 05:09:34 pm »
Waters Conley Phonola 2760 seems to be a VERY deluxe top of the line console stereo, and quite rare.

Are you sure there isn't a cheat-sheet inside the cabinet?

Offline jcm-jmp

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Re: phonola model 2760 console stereo
« Reply #2 on: June 24, 2011, 01:05:48 pm »
it looks like what was pictured as a 2760 in a phonola ad i found on the web.
its an *8 tube unit and from what i have traced out so far i know 1 of the tubes a dual triode type. The vaules suggest any of the 12--7 type tubes.

here are a couple pics of the chasis
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Offline jcm-jmp

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Re: phonola model 2760 console stereo
« Reply #3 on: June 24, 2011, 01:11:37 pm »
power xfmr is 6102 b     9496224
2-ot's t-6101    9496224

ot's secondary's wired for a woofer between both of them, realy wierd! like a 3rd channel or bridged output of the ot's for a woofer.

There is 1-6" speaker for each side and a single 10" woofer in the cabinet.
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Offline PRR

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Re: phonola model 2760 console stereo
« Reply #4 on: June 24, 2011, 10:08:39 pm »
> There is 1-6" speaker for each side and a single 10" woofer in the cabinet.

So you do have the cabinet? And there is NO tube-chart in/on/under/inside it?

> ot's secondary's wired for a woofer between both of them, realy wierd!

Same as your 5.1 media system. You need two (or more) mid-tweeters to get "spread". You only need one woofer for the whole room.

> i pulled the tubes in it a year or so ago and dont remember

You have created a very difficult puzzle.


 


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