[ARC5] SCR-A*-183/-283 Command Set Summary For All 21 Known Models
Mike Morrow
kk5f at earthlink.net
Wed Nov 12 13:03:47 EST 2014
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SCR-A*-183/-283 COMMAND SET SUMMARY
FOR ALL 21 KNOWN MODELS
(KK5F – 2014-11-11)
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---LEGEND---
*** SYSTEM *** SYSTEM VOLTS
RECEIVER TRANSMITTER JUNCTION BOX DYNAMOTOR MADE BY DATE
CONTROL BOX CONTROL BOX ANTENNA RELAY ORDER NO.
COILS kHz COILS kHz
NOTES
--------------------------------------------------------------------------------
***SCR-AA-183*** 14 VDC
BC-AA-179 BC-AA-180 TM-AA-153 BD-AA-69 ARC 06-25-1932
BC-AA-181 BC-AA-182 NONE SC-132311
C-97 224- 448 C-* 6200-7700
C-102 4150-7850 *No coil number
Receiver - Modes: Tuned Radio Frequency – Receives TONE (A2), VOICE (A3)
Receiver Stages: RF AMP1, RF AMP2, RF AMP3, RF AMP4 (VT-49 –> 39/44)x4
DETECTOR/AVC (VT-37 –> 37)
AF AMP (VT-38 –> 38)
Loop Connection: None
AUTO/MANUAL Volume: AVC is applied to first two RF amplifier stages.
MVC is applied to first three RF amplifier stages.
In AUTO, BC-AA-231 output control changes receiver audio
output and transmitter side-tone levels in headphone.
Screen Volt Divider: In dynamotor unit
AF Output Impedance: HIGH or LOW selected by internal wiring
AF Low Pass Filter: In AF transformer primary
Transmitter Modes: CW (A1), TONE (A2), VOICE (A3)
Transmitter Stages: MASTER OSCILLATOR (VT-25 –> 10Y)
POWER AMPLIFIER (VT-25 –> 10Y)
PA PLATE MODULATOR (VT-25 –> 10Y)
TONE OSCILLATOR (VT-52 –> 45SPL)
--------------------------------------------------------------------------------
***SCR-AB-183*** 14 VDC
BC-AD-219 BC-AD-200 TM-AD-167 BD-AD-81 Graybar 04-19-1934
BC-AD-201 BC-AD-202 BC-AD-198 Electric SC-132362
C-123 200- 370 C-140 6200-7700 for WECo
4200-7700
NOTES on circuit details are the same as shown for SCR-AA-183 except:
Loop Connection: Three-Pin Plug
AF Output Impedance: HIGH
--------------------------------------------------------------------------------
***SCR-AC-183*** 14 VDC
BC-AB-199 BC-AB-200 TM-AB-167 BD-AB-69 ARC 03-15-1934
BC-AB-201 BC-AB-202 BC-AB-198 SC-132350
C-127 224- 448 C-140 6200-7700
C-128 400- 800 C-141 3050-3800
C-129 800-1600
C-130 1600-3000
C-131 2500-4700
C-132 4150-7850
NOTES on circuit details are the same as shown for SCR-AA-183 except:
Loop Connection: Two Push-Terminal Posts
--------------------------------------------------------------------------------
***SCR-AD-183*** 14 VDC
BC-AD-199 BC-AD-200 TM-AD-167 BD-AD-69 Graybar 03-15-1934
BC-AD-201 BC-AD-202 BC-AD-198 Electric SC-132351
C-127 224- 448 C-140 6200-7700 for WECo
C-128 400- 800 C-141 3050-3800
C-129 800-1600
C-130 1600-3000
C-131 2500-4700
C-132 4150-7850
NOTES on circuit details are the same as shown for SCR-AA-183 except:
Loop Connection: Three-Pin Plug
--------------------------------------------------------------------------------
***SCR-AE-183*** 14 VDC
BC-AE-229 BC-AE-230 TM-AE-172 BD-AE-83 ARC 06-05-1935
BC-AE-231 BC-AE-232 BC-AE-198 SC-132368
C-166 224- 448 C-180 6200-7700
C-167 400- 800 C-181 3050-3800
C-168 800-1600
C-169 1600-3000
C-170 2500-4700
C-171 4150-7850
Receiver - Modes: Tuned Radio Frequency – Receives TONE (A2), VOICE (A3)
Receiver Stages: RF AMP1, RF AMP2, RF AMP3, RF AMP4 (VT-49 –> 39/44)x4
DETECTOR/AVC (VT-37 –> 37)
AF AMP (VT-38 –> 38)
AUTO/MANUAL Volume: AVC is applied to first two RF amplifier stages.
MVC is applied to first three RF amplifier stages.
In AUTO, BC-AE-231 output control changes receiver audio
output and transmitter side-tone levels in headphone.
Loop Connection: Three-Pin Plug
Screen Volt Divider: In receiver unit
AF Output Impedance: HIGH
AF Low Pass Filter: In AF transformer secondary
Transmitter Modes: CW (A1), TONE (A2), VOICE (A3)
Transmitter Stages: MASTER OSCILLATOR (VT-25 –> 10Y)
POWER AMPLIFIER (VT-25 –> 10Y)
PA PLATE MODULATOR AND TONE OSC (VT-52 –> 45SPL)x2
Crystal Control: C-184 4000-5000, 4495 kHz crystal
--------------------------------------------------------------------------------
***SCR-AF-183*** 14 VDC
BC-AF-229 BC-AF-230 TM-AF-172 BD-AF-83 WECo 07-27-1935
BC-AF-231 BC-AF-232 BC-AF-198 10999-NY-36
C-183 201- 398 C-196 2500-3200
2500-4700 C-197 3200-4000
C-185 201- 398 C-198 4000-5000
4150-7700 C-199 5000-6200
C-191 2500-4700 C-200 6200-7700
C-192 4150-7850 C-201 3050-3800
NOTES on circuit details are the same as shown for SCR-AA-183 except:
Loop Connection: Three-Pin Plug
Crystal Control: C-182 4000-5000, 4495 kHz crystal
--------------------------------------------------------------------------------
***SCR-AG-183*** 14 VDC
BC-AG-229 BC-AG-230 TM-AE-172 BD-AG-83 ARC 11-25-1935
BC-AE-231 BC-AE-232 BC-AE-198 11482-NY-36
C-153-A 201- 398 C-216 2500-3200
2500-4700 C-217 3200-4000
C-155-A 201- 398 C-218 4000-5000
4150-7700 C-219 5000-6200
C-171 2500-4700 C-220 6200-7700
C-172 4150-7850
NOTES on circuit details are the same as shown for SCR-AE-183.
--------------------------------------------------------------------------------
***SCR-AH-183*** 14 VDC
BC-AH-229 BC-AH-230 TM-AH-172 BD-AG-83 ARC 11-25-1935
BC-AH-231 BC-AE-232 BC-AE-198 11482-NY-36
C-153-A 201- 398 C-216 2500-3200
2500-4700 C-217 3200-4000
C-155-A 201- 398 C-218 4000-5000
4150-7700 C-219 5000-6200
C-171 2500-4700 C-220 6200-7700
C-172 4150-7850
NOTES on circuit details are the same as shown for SCR-AE-183 except:
AUTO/MANUAL Volume: In AUTO, BC-AH-231 output control changes receiver audio
output level, but does not change transmitter side-tone
level in headphones.
--------------------------------------------------------------------------------
***SCR-AJ-183*** 14 VDC
BC-AH-229 BC-AH-230 TM-AH-172 BD-AG-83 ARC 08-14-1937
BC-AH-231 BC-AE-232 BC-AE-198 11748-NY-38
C-153-A 201- 398 C-216 2500-3200
2500-4700 C-217 3200-4000
C-155-A 201- 398 C-218 4000-5000
4150-7700 C-219 5000-6200
C-171 2500-4700 C-220 6200-7700
C-172 4150-7850
NOTES on circuit details are the same as shown for SCR-AE-183 except:
AUTO/MANUAL Volume: In AUTO, BC-AH-231 output control changes receiver audio
output level, but does not change transmitter side-tone
level in headphones.
--------------------------------------------------------------------------------
***SCR-AK-183*** 14 VDC
BC-AH-229 BC-AH-230 TM-AH-172 BD-AK-83 ARC 01-10-1939
BC-AH-231 BC-AE-232 BC-AE-198 17875-NY-39
C-155-A 201- 398 C-216 2500-3200
4150-7700 C-217 3200-4000
C-171 2500-4700 C-218 4000-5000
C-219 5000-6200
C-220 6200-7700
NOTES on circuit details are the same as shown for SCR-AE-183 except:
AUTO/MANUAL Volume: In AUTO, BC-AH-231 output control changes receiver audio
output level, but does not change transmitter side-tone
level in headphones.
--------------------------------------------------------------------------------
***SCR-AL-183*** 14 VDC
BC-AL-229 BC-AL-230 TM-AH-172 BD-AL-83 Graybar 06-20-1939
BC-AL-231 BC-AL-232 BC-AL-198 Electric 19070-NY-39
C-266 2500-4700 C-271 2500-3200
C-270 201- 398 C-272 3200-4000
4150-7700 C-273 4000-5000
C-274 5000-6200
C-275 6200-7700
NOTES on circuit details are the same as shown for SCR-AE-183 except:
AUTO/MANUAL Volume: In AUTO, BC-AL-231 output control changes receiver audio
output level, but does not change transmitter side-tone
level in headphones.
--------------------------------------------------------------------------------
***SCR-AL-283*** 28 VDC
BC-AL-429 BC-AL-430 TM-AO-202 BD-AL-93 Graybar 06-20-1939
BC-AL-231 BC-AL-232 BC-AL-408 Electric 19070-NY-39
C-266 2500-4700 C-271 2500-3200
C-270 201- 398 C-272 3200-4000
4150-7700 C-273 4000-5000
C-274 5000-6200
C-275 6200-7700
NOTES on circuit details are the same as shown for SCR-AE-183 except:
AUTO/MANUAL Volume: In AUTO, BC-AL-231 output control changes receiver audio
output level, but does not change transmitter side-tone
level in headphones.
--------------------------------------------------------------------------------
***SCR-AN-183*** 14 VDC
BC-AN-229 BC-AN-230 TM-AH-172 BD-AN-83 WECo 10-16-1940
BC-AN-231 BC-AN-232 BC-AN-198 1246-NY-41
C-266 2500-4700 C-271 2500-3200
C-270 201- 398 C-272 3200-4000
4150-7700 C-273 4000-5000
C-274 5000-6200
C-275 6200-7700
NOTES on circuit details are the same as shown for SCR-AE-183 except:
AUTO/MANUAL Volume: In AUTO, BC-AN-231 output control changes receiver audio
output level, but does not change transmitter side-tone
level in headphones.
--------------------------------------------------------------------------------
***SCR-AN-283*** 28 VDC
BC-AN-429 BC-AN-430 TM-AO-202 BD-AN-93 WECo 10-16-1940
BC-AN-231 BC-AN-232 BC-AN-408 1246-NY-41
C-266 2500-4700 C-271 2500-3200
C-270 201- 398 C-272 3200-4000
4150-7700 C-273 4000-5000
C-274 5000-6200
C-275 6200-7700
NOTES on circuit details are the same as shown for SCR-AE-183 except:
AUTO/MANUAL Volume: In AUTO, BC-AN-231 output control changes receiver audio
output level, but does not change transmitter side-tone
level in headphones.
--------------------------------------------------------------------------------
***SCR-AO-183*** 14 VDC
BC-AO-229 BC-AO-230 TM-AH-172 BD-AO-83 WECo 06-18-1941
BC-AO-231 BC-AO-232 BC-AO-198 6120-NY-41
C-346 2500-4700 C-351 2500-3200
C-350 201- 398 C-352 3200-4000
4150-7700 C-353 4000-5000
C-354 5000-6200
C-355 6200-7700
NOTES on circuit details are the same as shown for SCR-AE-183 except:
AUTO/MANUAL Volume: In AUTO, BC-AO-231 output control changes receiver audio
output level, but does not change transmitter side-tone
level in headphones.
Transmitter vacuum tube VT-25-A replaces VT-25.
--------------------------------------------------------------------------------
***SCR-AO-283*** 28 VDC
BC-AO-429 BC-AO-430 TM-AO-202 BD-AO-93 WECo 06-18-1941
BC-AO-231 BC-AO-232 BC-AO-408 6120-NY-41
C-346 2500-4700 C-351 2500-3200
C-350 201- 398 C-352 3200-4000
4150-7700 C-353 4000-5000
C-354 5000-6200
C-355 6200-7700
NOTES on circuit details are the same as shown for SCR-AE-183 except:
AUTO/MANUAL Volume: In AUTO, BC-AO-231 output control changes receiver audio
output level, but does not change transmitter side-tone
level in headphones.
Transmitter vacuum tube VT-25-A replaces VT-25.
--------------------------------------------------------------------------------
***SCR-AP-183*** 14 VDC
BC-AP-229 BC-AP-230 TM-AH-172 BD-AP-83 WECo ??-??-1942
BC-AP-231 BC-AP-232 BC-AP-198 292-Phila-42
C-396 2500-4700 C-401 2500-3200
C-400 201- 398 C-402 3200-4000
4150-7700 C-403 4000-5000
C-404 5000-6200
C-405 6200-7700
NOTES on circuit details are the same as shown for SCR-AE-183 except:
Loop Connection: None
AUTO/MANUAL Volume: In AUTO, BC-AP-231 output control changes receiver audio
output level, but does not change transmitter side-tone
level in headphones.
AF Output Impedance: HIGH or LOW selected by internal wiring. (The AF output
low pass filter is not used when LOW is connected.)
Transmitter vacuum tube VT-25-A replaces VT-25.
--------------------------------------------------------------------------------
***SCR-AQ-283*** 28 VDC
BC-AQ-429 BC-AQ-430 TM-AO-202 BD-AQ-93 WECo ??-??-1942
BC-AQ-231 BC-AQ-232 BC-AQ-408 294-Phila-42
C-396 2500-4700 C-401 2500-3200
C-400 201- 398 C-402 3200-4000
4150-7700 C-403 4000-5000
C-404 5000-6200
C-405 6200-7700
NOTES on circuit details are the same as shown for SCR-AE-183 except:
Loop Connection: None
AUTO/MANUAL Volume: In AUTO, BC-AQ-231 output control changes receiver audio
output level, but does not change transmitter side-tone
level in headphones.
AF Output Impedance: HIGH or LOW selected by internal wiring. (The AF output
low pass filter is not used when LOW is connected.)
Transmitter vacuum tube VT-25-A replaces VT-25.
--------------------------------------------------------------------------------
***SCR-AR-183*** 14 VDC
BC-AR-229 BC-AR-230 TM-AH-172 BD-AR-83 WECo ??-??-1942
BC-AR-231 BC-AR-232 BC-AR-198 68-WF-42
C-376 2500-4700 C-381 2500-3200
C-377 4150-7700 C-382 3200-4000
C-379 201- 398 C-383 4000-5000
2500-4700 C-384 5000-6200
C-380 201- 398 C-385 6200-7700
4150-7700
NOTES on circuit details are the same as shown for SCR-AE-183 except:
Loop Connection: None
AUTO/MANUAL Volume: In AUTO, BC-AR-231 output control changes receiver audio
output level, but does not change transmitter side-tone
level in headphones.
AF Output Impedance: HIGH or LOW selected by internal wiring. (The AF output
low pass filter is not used when LOW is connected.)
Transmitter vacuum tube VT-25-A replaces VT-25.
--------------------------------------------------------------------------------
***SCR-AR-283*** 28 VDC
BC-AR-429 BC-AR-430 TM-AO-202 BD-AR-93 WECo ??-??-1942
BC-AR-231 BC-AR-232 BC-AR-408 68-WF-42
C-376 2500-4700 C-381 2500-3200
C-377 4150-7700 C-382 3200-4000
C-379 201- 398 C-383 4000-5000
2500-4700 C-384 5000-6200
C-380 201- 398 C-385 6200-7700
4150-7700
NOTES on circuit details are the same as shown for SCR-AE-183 except:
Loop Connection: None
AUTO/MANUAL Volume: In AUTO, BC-AR-231 output control changes receiver audio
output level, but does not change transmitter side-tone
level in headphones.
AF Output Impedance: HIGH or LOW selected by internal wiring. (The AF output
low pass filter is not used when LOW is connected.)
Transmitter vacuum tube VT-25-A replaces VT-25.
--------------------------------------------------------------------------------
***SCR-AS-183*** 14 VDC
BC-AS-229 BC-AS-230 TM-AH-172 BD-AS-83 Philco ??-??-1942
BC-AS-231 BC-AT-232 BC-AS-198 2534-WF-42
C-436 2500-4700 C-431 2500-3200
C-437 4150-7700 C-432 3200-4000
C-439 201- 398 C-433 4000-5000
2500-4700 C-434 5000-6200
C-440 201- 398 C-435 6200-7700
4150-7700
NOTES on circuit details are the same as shown for SCR-AE-183 except:
Loop Connection: None
AUTO/MANUAL Volume: In AUTO, BC-AS-231 output control changes receiver audio
output level, but does not change transmitter side-tone
level in headphones.
AF Output Impedance: HIGH or LOW selected by internal wiring. (The AF output
low pass filter is not used when LOW is connected.)
Transmitter vacuum tube VT-25-A replaces VT-25.
--------------------------------------------------------------------------------
ARC = Aircraft Radio Corporation
WECo = Western Electric Company
REMARKS FOR THIS TABULATION
This work does not describe the use of any listed receiver in liaison receiver
service, such as used in SCR-A*-182, SCR-A*-185, SCR-A*-187, or SCR-A*-192
systems. Only the coils specified in the command set instruction book are
shown. The expanded set of coils that was typically assigned for liaison
receiver service are not listed.
Some systems were supplied on multiple dates and order numbers. Those listed
here are the earliest that I have found.
For proper presentation, this message must not be viewed in a HTML or Richtext
mail viewer. Find this posting at
http://mailman.qth.net/pipermail/arc5/2014-November/date.html
to see a correct presentation. A pdf copy can be provided on request.
Comments, additions, and corrections are welcome. Submit to Mike Morrow,
kk5f at arrl.net. Copyright for publication, but not distribution with
attribution, is reserved.
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