Power Supply - Harris RF-124 (PP-5237/URC) - 200 lbs., Input - 230vac, 1-phase,
60Hz
Outputs - 2250vdc, 1200ma + 500vdc, 900ma + 115vac, 60 Hz + 115vac, 400Hz
(for amp blower)
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![IMG_5964.JPG (3297391 bytes)](urt23-resto/IMG_5964_small.JPG) |
![IMG_5961.JPG (2492445 bytes)](urt23-resto/IMG_5961_small.JPG) |
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![IMG_5618.JPG (318319 bytes)](urt23-resto/IMG_5618_small.JPG) |
Amplifier - AM-6909/URT is AM-3924/URT with FC14 installed (Harris
RF-110A)
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Front view
![IMG_5952.JPG (4288022 bytes)](urt23-resto/IMG_5952_small.JPG) |
Rear view
![IMG_5960.JPG (3471490 bytes)](urt23-resto/IMG_5960_small.JPG) |
Top view - output RF transformers
![IMG_5955.JPG (4061436 bytes)](urt23-resto/IMG_5955_small.JPG) |
Finals - two 4CX1500B beam power tetrodes
![IMG_5956.JPG (4750754 bytes)](urt23-resto/IMG_5956_small.JPG) |
Bottom view - empty space is used for 400Hz p/s (PP-3917) in
AM-3924
![IMG_5968.JPG (4538689 bytes)](urt23-resto/IMG_5968_small.JPG) |
Terminal board installed (in FC14) turns AM-3924 into
AM-6909
![IMG_5969.JPG (4792678 bytes)](urt23-resto/IMG_5969_small.JPG) |
Left side view - filament/bias transformer & control
logic boards
![IMG_5962.JPG (3477721 bytes)](urt23-resto/IMG_5962_small.JPG) |
Right side view - output RF transformers
![IMG_5963.JPG (4103791 bytes)](urt23-resto/IMG_5963_small.JPG) |
Inside rear of cabinet showing T-R relay
![IMG_5996.JPG (4903416 bytes)](urt23-resto/IMG_5996_small.JPG) |
Bottom view with driver assemblies and cover removed
![IMG_6026.JPG (5537574 bytes)](urt23-resto/IMG_6026_small.JPG) |
Driver assembly - two 8122 beam power tetrodes
![IMG_6032.JPG (5399556 bytes)](urt23-resto/IMG_6032_small.JPG) |
Driver RF transformer assembly
![IMG_6019.JPG (5859323 bytes)](urt23-resto/IMG_6019_small.JPG) |
Miscellaneous photos to help with restoration
and re-assembly |
![IMG_5966.JPG (5766547 bytes)](urt23-resto/IMG_5966_small.JPG) |
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Output RF transformers
![IMG_5986.JPG (5195814 bytes)](urt23-resto/IMG_5986_small.JPG) |
Umbilical connections |
![IMG_5987.JPG (4493808 bytes)](urt23-resto/IMG_5987_small.JPG) |
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![IMG_5995.JPG (3228680 bytes)](urt23-resto/IMG_5995_small.JPG) |
Cabinet interlock
![IMG_5997.JPG (3913787 bytes)](urt23-resto/IMG_5997_small.JPG) |
![IMG_5998.JPG (5203767 bytes)](urt23-resto/IMG_5998_small.JPG) |
Final cover interlock
![IMG_5999.JPG (3082800 bytes)](urt23-resto/IMG_5999_small.JPG) |
Finals
![IMG_6001.JPG (5351732 bytes)](urt23-resto/IMG_6001_small.JPG) |
Final sockets
![IMG_6002.JPG (6159462 bytes)](urt23-resto/IMG_6002_small.JPG) |
Left
![IMG_6004.JPG (5971973 bytes)](urt23-resto/IMG_6004_small.JPG) |
Right
![IMG_6005.JPG (5415194 bytes)](urt23-resto/IMG_6005_small.JPG) |
Driver sections
![IMG_6006.JPG (5356420 bytes)](urt23-resto/IMG_6006_small.JPG) |
Terminal strip connections before disassembly |
![IMG_6007.JPG (3781087 bytes)](urt23-resto/IMG_6007_small.JPG) |
![IMG_6008.JPG (3379806 bytes)](urt23-resto/IMG_6008_small.JPG) |
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![IMG_6010.JPG (3749384 bytes)](urt23-resto/IMG_6010_small.JPG) |
Final tube sockets from below |
![IMG_6011.JPG (4950832 bytes)](urt23-resto/IMG_6011_small.JPG) |
![IMG_6012.JPG (4403546 bytes)](urt23-resto/IMG_6012_small.JPG) |
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![IMG_6018.JPG (5264793 bytes)](urt23-resto/IMG_6018_small.JPG) |
Driver RF transformers |
![IMG_6019.JPG (5859323 bytes)](urt23-resto/IMG_6019_small1.JPG) |
![IMG_6020.JPG (6897472 bytes)](urt23-resto/IMG_6020_small.JPG) |
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![IMG_6023.JPG (5755172 bytes)](urt23-resto/IMG_6023_small.JPG) |
Blower compartment
![IMG_6025.JPG (5526455 bytes)](urt23-resto/IMG_6025_small.JPG) |
![IMG_6024.JPG (3168647 bytes)](urt23-resto/IMG_6024_small.JPG) |
![IMG_6027.JPG (3938094 bytes)](urt23-resto/IMG_6027_small.JPG) |
Driver tubes |
![IMG_6033.JPG (5071753 bytes)](urt23-resto/IMG_6033_small.JPG) |
![IMG_6032.JPG (5399556 bytes)](urt23-resto/IMG_6032_small.JPG) |
![IMG_6031.JPG (5469490 bytes)](urt23-resto/IMG_6031_small.JPG) |
![IMG_6034.JPG (6969626 bytes)](urt23-resto/IMG_6034_small.JPG) |
Busted tune switch
![IMG_6035.JPG (5334212 bytes)](urt23-resto/IMG_6035_small.JPG) |
![IMG_6063.JPG (5052006 bytes)](urt23-resto/IMG_6063_small.JPG) |
Settings at disassembly
![IMG_6066.JPG (3045639 bytes)](urt23-resto/IMG_6066_small.JPG) |
Output RF transformers |
![IMG_6069.JPG (4613999 bytes)](urt23-resto/IMG_6069_small.JPG) |
![IMG_6068.JPG (6797708 bytes)](urt23-resto/IMG_6068_small.JPG) |
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![IMG_6075.JPG (2744953 bytes)](urt23-resto/IMG_6075_small.JPG) |
Power supply filter caps |
![IMG_6098.JPG (4604853 bytes)](urt23-resto/IMG_6098_small.JPG) |
![IMG_6114.JPG (3464484 bytes)](urt23-resto/IMG_6114_small.JPG) |
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![IMG_6119.JPG (6282618 bytes)](urt23-resto/IMG_6119_small.JPG) |
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Replaced busted key-tune switch
![IMG_6347.JPG (3189416 bytes)](urt23-resto/IMG_6347_small.JPG) |
![IMG_6348.JPG (2593843 bytes)](urt23-resto/IMG_6348_small.JPG) |
![IMG_6349.JPG (2888868 bytes)](urt23-resto/IMG_6349_small.JPG) |
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Misc photos to aid in restoration |
![IMG_6350.JPG (2730928 bytes)](urt23-resto/IMG_6350_small.JPG) |
![IMG_6351.JPG (2489600 bytes)](urt23-resto/IMG_6351_small.JPG) |
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![IMG_6358.JPG (2837415 bytes)](urt23-resto/IMG_6358_small.JPG) |
Driver xfmr module - corroded contact
![IMG_7045.JPG (2937624 bytes)](urt23-resto/IMG_7045_small.JPG) |
Replacement driver xfmr module
![IMG_7050.JPG (2605624 bytes)](urt23-resto/IMG_7050_small.JPG) |
Connections on replacement xfmr unit
![IMG_7051.JPG (3211496 bytes)](urt23-resto/IMG_7051_small.JPG) |
Driver assembly
![IMG_7048.JPG (3321285 bytes)](urt23-resto/IMG_7048_small.JPG) |
Main Fuses - stuck because of corroded O-rings |
![IMG_7053.JPG (3175140 bytes)](urt23-resto/IMG_7053_small.JPG) |
![IMG_7054.JPG (3022791 bytes)](urt23-resto/IMG_7054_small.JPG) |
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