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emrr

Well-known member
Joined
Apr 12, 2006
Messages
8,525
Location
NC, USA
26U-2 stereo / dual mono limiter
 

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  • Collins 26U-2_p29 clean2 dpi.jpg
    Collins 26U-2_p29 clean2 dpi.jpg
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Collins 6Q-1 preamp, later circuit

 

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  • 6Q1_1956_schemo.jpg
    6Q1_1956_schemo.jpg
    1.2 MB · Views: 135
7R-9 monitor.  Swap between alternate rectifier and output tubes for varying power levels. 
 

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  • Collins_7R-9_schem1 annotated.jpg
    Collins_7R-9_schem1 annotated.jpg
    348.2 KB · Views: 43
12H console: 7JA program amp board
 

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  • 12H_7JA_Line_Amp.jpg
    12H_7JA_Line_Amp.jpg
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12H console: 7HA monitor amp board
 

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  • 12H_7HA_Amplifier.jpg
    12H_7HA_Amplifier.jpg
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12H console: 500CB filter board
 

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  • 12H_500CB_filterunit.jpg
    12H_500CB_filterunit.jpg
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one of several versions
 

Attachments

  • Collins 26W First Generation Schematic.jpg
    Collins 26W First Generation Schematic.jpg
    787.6 KB · Views: 108

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