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RTR DR-1 (circular electrostatic panel)
RTR DR-1 (circular electrostatic panel)
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Old 4th February 2013, 05:13 PM   #31
bigjimmiey is offline bigjimmiey  United States
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Here's the 'Fridge'....jw
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Old 4th February 2013, 05:19 PM   #32
bigjimmiey is offline bigjimmiey  United States
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And the DR-1
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Old 4th February 2013, 05:27 PM   #33
bigjimmiey is offline bigjimmiey  United States
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pics
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Old 4th February 2013, 05:29 PM   #34
bigjimmiey is offline bigjimmiey  United States
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more
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Old 4th February 2013, 07:15 PM   #35
Davey is offline Davey  United States
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Thanks for posting. Another listening of the DR-1's (approximately forty years later) needs to be on my bucket list.

Cheers,

Dave.
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Old 4th February 2013, 07:20 PM   #36
bigjimmiey is offline bigjimmiey  United States
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Default DR-1

There's a few out in your neck of the woods, I received 2 pair from different owners from your state, James
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Old 9th February 2013, 09:22 PM   #37
bentoronto is offline bentoronto  Canada
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Location: Toronto and Delray Beach, FL
RTR DR-1 (circular electrostatic panel)
At Bell Labs, I tested a phenolic-fabric fried-egg tweeter a local dealer had cornered the market in. Fabulous looking tone bursts and good freq response. So a group of us bought a case of 'em and I made a 120 degree array using 9 per side (which obviously simplifies the cross-over).

My experience is this: big tweeter power capacity is more worthwhile than I ever used to think; there definitely are moments in music where giant peaks occur in the high treble instantaneously (for example, female choirs). And apropos this thread, seriously multi-directional tweeting adds a welcome liveness to the sound of music at home as compared to the usual beaming treble (and esp. for us ESL folks).

Ben
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HiFi aspirations since 1957. Currently working on motional feedback again... the final frontier in audio

Last edited by bentoronto; 9th February 2013 at 09:26 PM.
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Old 11th February 2013, 06:23 PM   #38
Mike Beck is offline Mike Beck  United States
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Default RTR Photos

I found these photos in my files-can't remember where they came from.
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Old 9th February 2016, 06:04 PM   #39
Davey is offline Davey  United States
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Reviving this thread temporarily.
Does anyone have a set of service information....schematics, etc, for the DR-1 they could forward to me? Would be much appreciated.

Dave.
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Old 9th February 2016, 08:01 PM   #40
tyu is offline tyu  United States
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Davey.....because you know most things on the web...an beyond.... a pr of DR-1s have been for sale on US Audio mart......I think the guys taking offers.......
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