Damper Actuator

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NEW N BOX BELIMO 24VAC DC DAMPER ACTUATOR AFA24 SR US 133lbs
NEW N BOX BELIMO 24VAC DC DAMPER ACTUATOR AFA24 SR US 133lbs
$149.95
quality
HONEYWELL MP909E 1349 1 PNEUMATIC DAMPER ACTUATOR SPR RANGE 3 13psi NEW SURPLUS
HONEYWELL MP909E 1349 1 PNEUMATIC DAMPER ACTUATOR SPR RANGE 3 13psi NEW SURPLUS
$124.97
quality
NOS IN MFG BOX WHITE RODGERS LENNOX DAMPER ACTUATOR MOTOR P 8 3373 32432
NOS IN MFG BOX WHITE RODGERS LENNOX DAMPER ACTUATOR MOTOR P 8 3373 32432
$249.95
quality
HONEYWELL PNEUMATIC DAMPER ACTUATOR MP909D 1227 3
HONEYWELL PNEUMATIC DAMPER ACTUATOR MP909D 1227 3
$44.95
quality
JOHNSON CONTROLS D 4073 3 DAMPER ACTUATOR 5 10psi SPRING UNIV MT NEW SURPLUS
JOHNSON CONTROLS D 4073 3 DAMPER ACTUATOR 5 10psi SPRING UNIV MT NEW SURPLUS
$74.97
quality
KMC CONTROLS MCP 80315101 DAMPER ACTUATOR 8 13psi NEW SURPLUS
KMC CONTROLS MCP 80315101 DAMPER ACTUATOR 8 13psi NEW SURPLUS
$74.97
quality
TAC MK 7121 0 0 2 Pneumatic Damper Actuator MK7121002 New No Box
TAC MK 7121 0 0 2 Pneumatic Damper Actuator MK7121002 New No Box
$299.00
quality
KMC CONTROLS MCP 80313101 DAMPER ACTUATOR 5 10 psi NEW SURPLUS
KMC CONTROLS MCP 80313101 DAMPER ACTUATOR 5 10 psi NEW SURPLUS
$29.97
quality
SIEMENS 331 3060 NO6 PNEUMATIC DAMPER ACTUATOR SPRING RANGE 8 13 PSI 3313060
SIEMENS 331 3060 NO6 PNEUMATIC DAMPER ACTUATOR SPRING RANGE 8 13 PSI 3313060
$109.00
quality
Robertshaw M574 5520 Damper Actuator
Robertshaw M574 5520 Damper Actuator
$199.99
quality
SIEMENS PNEUMATIC DAMPER ACTUATOR 331 2911 P N 3312911
SIEMENS PNEUMATIC DAMPER ACTUATOR 331 2911 P N 3312911
$55.00
quality
JOHNSON CONTROLS D 3153 1 DAMPER ACTUATOR
JOHNSON CONTROLS D 3153 1 DAMPER ACTUATOR
$50.00
quality
Belimo LM24 10P M Damper Actuator USED
Belimo LM24 10P M Damper Actuator USED
$19.99
quality
Honeywell M6415A1008 9143 Damper Actuator FREE SHIPPING
Honeywell M6415A1008 9143 Damper Actuator FREE SHIPPING
$70.00
quality
LANDIS  GYR SQR851 ELECTRONIC DAMPER ACTUATOR NEW
LANDIS GYR SQR851 ELECTRONIC DAMPER ACTUATOR NEW
$60.00
quality
Landis  Gyr ELECTRONIC DAMPER ACTUATOR SQR851
Landis Gyr ELECTRONIC DAMPER ACTUATOR SQR851
$70.00
quality
Damper Actuator Pneumatic over Spring Max Supply Pressure 30 PSIG NEW
Damper Actuator Pneumatic over Spring Max Supply Pressure 30 PSIG NEW
$125.00
quality
HUGE LOT OF Powers Pneumatic Damper Motor Actuator Pivot Mounting Plates
HUGE LOT OF Powers Pneumatic Damper Motor Actuator Pivot Mounting Plates
$299.99
quality
Powers 331 2792 Pneumatic Damper Motor Actuator 8 13 PSIG Spring 039505
Powers 331 2792 Pneumatic Damper Motor Actuator 8 13 PSIG Spring 039505
$139.99
quality
Powers 331 2973 Model 019501 Pneumatic Damper Actuator Assy 4 Nominal Stroke
Powers 331 2973 Model 019501 Pneumatic Damper Actuator Assy 4 Nominal Stroke
$59.99
quality
Powers 331 2906 Model 029520 Pneumatic Damper Actuator Motor 5 10 PSIG Spring
Powers 331 2906 Model 029520 Pneumatic Damper Actuator Motor 5 10 PSIG Spring
$59.99
quality
Powers 331 2961 Model 019435 Pneumatic Damper Actuator Motor 8 13 PSIG Spring
Powers 331 2961 Model 019435 Pneumatic Damper Actuator Motor 8 13 PSIG Spring
$59.99
quality
Powers 331 3011 Model 039505 Pneumatic Damper Actuator Assy 4 Nominal Stroke
Powers 331 3011 Model 039505 Pneumatic Damper Actuator Assy 4 Nominal Stroke
$59.99
quality
Powers 331 2906 Model 019510 Pneumatic Damper Actuator Assy 30 PSIG Max Supply
Powers 331 2906 Model 019510 Pneumatic Damper Actuator Assy 30 PSIG Max Supply
$59.99
quality
NEW BALTIMORE AIRCOIL DAMPER ACTUATOR 310742
NEW BALTIMORE AIRCOIL DAMPER ACTUATOR 310742
$99.99
quality
Siemens 6 Pneumatic Damper Actuator 3323011
Siemens 6 Pneumatic Damper Actuator 3323011
$263.00
quality
LANDIS  GYR SQR851 ELECTRONIC DAMPER ACTUATOR NEW
LANDIS GYR SQR851 ELECTRONIC DAMPER ACTUATOR NEW
$70.00
quality
TRANE DIA0068 Damper Actuator Diaphragm G2492266
TRANE DIA0068 Damper Actuator Diaphragm G2492266
$25.69
quality
HONEYWELL MS7120K2008 POSTION DAMPER ACTUATOR NEW NO BOX
HONEYWELL MS7120K2008 POSTION DAMPER ACTUATOR NEW NO BOX
$207.00
quality
HONEYWELL MP918B 1196 2 PNEUMATIC DAMPER ACTUATOR NEW
HONEYWELL MP918B 1196 2 PNEUMATIC DAMPER ACTUATOR NEW
$150.00
quality
Honeywell M6415A1008 9143 Damper Actuator USED FREE SHIPPING
Honeywell M6415A1008 9143 Damper Actuator USED FREE SHIPPING
$49.99
quality
NEW Venco Electric Actuator MP 100A For use with WD 100 Series Dampers
NEW Venco Electric Actuator MP 100A For use with WD 100 Series Dampers
$159.99
quality
GUARANTEED HONEYWELL MODUTROL 24V 88A 18W DAMPER MOTOR ACTUATOR M941A 1024
GUARANTEED HONEYWELL MODUTROL 24V 88A 18W DAMPER MOTOR ACTUATOR M941A 1024
$139.95
quality
GUARANTEED HONEYWELL MODUTROL 24V 80A 18W DAMPER MOTOR ACTUATOR M941A 1024
GUARANTEED HONEYWELL MODUTROL 24V 80A 18W DAMPER MOTOR ACTUATOR M941A 1024
$139.95
quality
JOHNSON CONTROLS D 251 DIAPHRAGM OF RUBBER FOR NO 6 DAMPER ACTUATOR
JOHNSON CONTROLS D 251 DIAPHRAGM OF RUBBER FOR NO 6 DAMPER ACTUATOR
$45.88
quality
Quantum Automation QDAF06 Damper Actuator 0 90 6N M 108S 3VA T20024
Quantum Automation QDAF06 Damper Actuator 0 90 6N M 108S 3VA T20024
$375.00
quality
JOHNSON CONTROLS D 4073 DAMPER ACTUATOR
JOHNSON CONTROLS D 4073 DAMPER ACTUATOR
$47.99
quality
Trane DIA0068 Damper Actuator Diaphragm
Trane DIA0068 Damper Actuator Diaphragm
$23.99
quality
Johnson Controls D 3153 2 Damper Actuator 8 to 13 PSI Spring D31532 Used Unit
Johnson Controls D 3153 2 Damper Actuator 8 to 13 PSI Spring D31532 Used Unit
$29.98
quality
Johnson Controls P N R37 1 90 Diaphragm D 3153 600 8830 1pc For Damper Actuator
Johnson Controls P N R37 1 90 Diaphragm D 3153 600 8830 1pc For Damper Actuator
$19.99
quality
SIEBE MK 3111 0 2 PNEUMATIC DAMPER ACTUATOR NSNB
SIEBE MK 3111 0 2 PNEUMATIC DAMPER ACTUATOR NSNB
$61.95
quality
Invensys M693 3095 1 Pneumatic Piston Damper Actuator NEW
Invensys M693 3095 1 Pneumatic Piston Damper Actuator NEW
$99.99
quality
TAC MK 7121 0 0 2 Pneumatic Damper Actuator 20 sq in 8 13 Spring 225 lb in
TAC MK 7121 0 0 2 Pneumatic Damper Actuator 20 sq in 8 13 Spring 225 lb in
$100.00
quality
New Siemens No 4 Pneumatic Damper Actuator 331 2972
New Siemens No 4 Pneumatic Damper Actuator 331 2972
$110.25
quality
SIEMENS 332 3011 Powers Controls No 6 Pneumatic Damper Actuator 070829 NOS
SIEMENS 332 3011 Powers Controls No 6 Pneumatic Damper Actuator 070829 NOS
$225.00
quality
HONEYWELL MP918B 1196 2 PNEUMATIC DAMPER ACTUATOR SPRING RANGE 8 13 PSI NEW H6
HONEYWELL MP918B 1196 2 PNEUMATIC DAMPER ACTUATOR SPRING RANGE 8 13 PSI NEW H6
$49.95
quality
HONEYWELL MP918B 3 13PSI PNEUMATIC DAMPER ACTUATOR D584247
HONEYWELL MP918B 3 13PSI PNEUMATIC DAMPER ACTUATOR D584247
$28.20
quality
JOHNSON CONTROLS EDA 2040 62 ELECTRIC DAMPER ACTUATOR NEW IN BOX
JOHNSON CONTROLS EDA 2040 62 ELECTRIC DAMPER ACTUATOR NEW IN BOX
$85.00
quality
Power Pneumatic Spring Over Damper Actuator 331 2780 331 2781 IT8
Power Pneumatic Spring Over Damper Actuator 331 2780 331 2781 IT8
$80.09
quality
NEW Johnson Controls D 3073 2 Damper Actuator
NEW Johnson Controls D 3073 2 Damper Actuator
$37.09
quality
NEW Johnson Controls D 3153 Pneumatic Piston Spring Damper Actuator Assembly
NEW Johnson Controls D 3153 Pneumatic Piston Spring Damper Actuator Assembly
$125.00
quality
NOS Siemens 6 Pneumatic Hydraulic Damper Actuator 331 2795 8 13 PSI
NOS Siemens 6 Pneumatic Hydraulic Damper Actuator 331 2795 8 13 PSI
$385.00
quality
Invensys M693 3095 1 Pneumatic Piston Damper Actuator 5 10 PSI Spring Range
Invensys M693 3095 1 Pneumatic Piston Damper Actuator 5 10 PSI Spring Range
$193.54
quality
Johnson Controls DA 2200 3640 Pneumatic Damper Actuator 2 Stroke RSM 25 50 64
Johnson Controls DA 2200 3640 Pneumatic Damper Actuator 2 Stroke RSM 25 50 64
$72.57
quality
Honeywell MP909D12273 Pneumatic Damper Actuator New No Box
Honeywell MP909D12273 Pneumatic Damper Actuator New No Box
$49.77
quality
Johnson Controls 9007 8 13 9007813 Damper Actuator Used
Johnson Controls 9007 8 13 9007813 Damper Actuator Used
$65.77
quality
HONEYWELL MP909E1034 ACTUATOR DAMPER NEW IN BOX
HONEYWELL MP909E1034 ACTUATOR DAMPER NEW IN BOX
$137.00
quality
Johnson Controls D 3073 4 D30734 Damper Actuator 8 13 PSI Spring Used
Johnson Controls D 3073 4 D30734 Damper Actuator 8 13 PSI Spring Used
$140.77
quality
Johnson Controls D 3000 1167 D30001167 Damper Actuator 3 7 PSI Spring Used
Johnson Controls D 3000 1167 D30001167 Damper Actuator 3 7 PSI Spring Used
$106.77
quality
JOHNSON CONTROLS D 4073 5 Pneumatic Damper Actuator
JOHNSON CONTROLS D 4073 5 Pneumatic Damper Actuator
$125.00
quality
NIB HONEYWELL MP918B 1196 2 PNEUMATIC DAMPER ACTUATOR 8 13 PSI MP918B 1196
NIB HONEYWELL MP918B 1196 2 PNEUMATIC DAMPER ACTUATOR 8 13 PSI MP918B 1196
$125.00
quality
JOHNSON CONTROLS D 3153 1 DAMPER ACTUATOR W 8 TO 13 PSIG SPRING D31531 NEW
JOHNSON CONTROLS D 3153 1 DAMPER ACTUATOR W 8 TO 13 PSIG SPRING D31531 NEW
$90.00
quality
Honeywell MP909D12273 Pneumatic Damper Actuator
Honeywell MP909D12273 Pneumatic Damper Actuator
$60.77
quality
Johnson Controls D 3062 3 DAMPER ACTUATOR 2 STROKE 8 13SPRING 4 SQ FT DMP
Johnson Controls D 3062 3 DAMPER ACTUATOR 2 STROKE 8 13SPRING 4 SQ FT DMP
$21.38
quality
NEW HONEYWELL ML6175A1001 2 10 Modulating Damper Actuator
NEW HONEYWELL ML6175A1001 2 10 Modulating Damper Actuator
$65.00
quality
KMC CONTROLS DAMPER ACTUATOR MCP8031 3102
KMC CONTROLS DAMPER ACTUATOR MCP8031 3102
$24.59
quality
JOVENTA DM11F DAMPER ACTUATOR WITH SPRING RETURN B406
JOVENTA DM11F DAMPER ACTUATOR WITH SPRING RETURN B406
$169.99
quality
Barber Colman 100 Square In Damper Actuator 8 13 psig MK 8921
Barber Colman 100 Square In Damper Actuator 8 13 psig MK 8921
$288.00
quality
F S JOHNSON CONTROLS D 3153 1 DAMPER ACTUATOR W 8 TO 13 PSIG SPRING D31531
F S JOHNSON CONTROLS D 3153 1 DAMPER ACTUATOR W 8 TO 13 PSIG SPRING D31531
$121.50
quality
Siemens 331 Series Number 6 Pneumatic Damper Actuator 331 3011
Siemens 331 Series Number 6 Pneumatic Damper Actuator 331 3011
$90.00
quality
New Robert Shaw M50631 Damper Actuator M506 31
New Robert Shaw M50631 Damper Actuator M506 31
$39.00
quality
Johnson Controls D 3073 2 D30732 Damper Actuator 8 13 PSI Spring Used
Johnson Controls D 3073 2 D30732 Damper Actuator 8 13 PSI Spring Used
$138.98
quality
Johnson Controls D 3073 2 D30732 Damper Actuator 8 13 PSI Spring New No Box
Johnson Controls D 3073 2 D30732 Damper Actuator 8 13 PSI Spring New No Box
$185.95
quality
MP918A 1081 Manufactured by HONEYWELL PNEUMATIC DAMPER ACTUATORS
MP918A 1081 Manufactured by HONEYWELL PNEUMATIC DAMPER ACTUATORS
$220.00
quality
Delta DM24 53 Valve and Damper Actuator Delta Control Products
Delta DM24 53 Valve and Damper Actuator Delta Control Products
$10.26
quality
Ruskin RLH 24 MOD Damper Actuator
Ruskin RLH 24 MOD Damper Actuator
$41.59
quality
Belimo LMB24 3 T Return Damper Actuator
Belimo LMB24 3 T Return Damper Actuator
$34.79
quality
LOT OF 2 KMC CONTROLS MCP 1160 5111 6 PNEUMATIC DAMPER ACTUATOR 30 PSI MAX
LOT OF 2 KMC CONTROLS MCP 1160 5111 6 PNEUMATIC DAMPER ACTUATOR 30 PSI MAX
$1,000.00
quality
Schneider M574 8520 Pneumatic Damper Actuators M5748520
Schneider M574 8520 Pneumatic Damper Actuators M5748520
$129.99
quality
F S JOHNSON CONTROLS D 3153 1 DAMPER ACTUATOR W 8 TO 13 PSIG SPRING D31531
F S JOHNSON CONTROLS D 3153 1 DAMPER ACTUATOR W 8 TO 13 PSIG SPRING D31531
$185.95
quality
NEW BALTIMORE AIRCOIL 310742 DAMPER ACTUATOR D541739
NEW BALTIMORE AIRCOIL 310742 DAMPER ACTUATOR D541739
$40.60
quality
NEW POWERS 331 2961 049731 PNEUMATIC DAMPER ACTUATOR D574071
NEW POWERS 331 2961 049731 PNEUMATIC DAMPER ACTUATOR D574071
$45.40
quality
3x Belimo NFB24 S  NFB24 Damper Actuators
3x Belimo NFB24 S NFB24 Damper Actuators
$175.00
quality
New Siemens 985 004 Self Centering Shaft Adapter For GGD Damper Actuator
New Siemens 985 004 Self Centering Shaft Adapter For GGD Damper Actuator
$9.49
quality
NEW JOHNSON CONTROLS POSITIONER KIT FOR D 3153 DAMPER ACTUATOR PN D 9502 8
NEW JOHNSON CONTROLS POSITIONER KIT FOR D 3153 DAMPER ACTUATOR PN D 9502 8
$132.30
quality
Barber Colman MC 431 0 0 1 120V 60Hz 50W 2 Position Damper Valve Actuator
Barber Colman MC 431 0 0 1 120V 60Hz 50W 2 Position Damper Valve Actuator
$519.99
quality
NEW KMC Control MCP 5160 5111 Pneumatic Actuator Damper 6 FREE SHIPPING
NEW KMC Control MCP 5160 5111 Pneumatic Actuator Damper 6 FREE SHIPPING
$395.99
quality
SIEMENS 6 PNEU DAMPER ACTUATOR 331 3060 SEE DESC UNUSED 0217
SIEMENS 6 PNEU DAMPER ACTUATOR 331 3060 SEE DESC UNUSED 0217
$95.00
quality
Honeywell M6415A1008 13610243 01 Damper Actuator FREE SHIPPING
Honeywell M6415A1008 13610243 01 Damper Actuator FREE SHIPPING
$118.99
quality
JOHNSON CONTROLS D 3153 6 DAMPER ACTUATOR R 3030 1 NEW
JOHNSON CONTROLS D 3153 6 DAMPER ACTUATOR R 3030 1 NEW
$17.50
quality
NEW Johnson Controls D 3153 1 Damper Actuator
NEW Johnson Controls D 3153 1 Damper Actuator
$150.00
quality
NEW Johnson Controls D 4073 1 Damper Actuator
NEW Johnson Controls D 4073 1 Damper Actuator
$182.00
quality

Honeywell N2024 1M direct coupled damper actuators for floating 2
Honeywell N2024 1M direct coupled damper actuators for floating 2
$65.00
quality
Honeywell MS3103J1030 Spring Return Damper Actuator
Honeywell MS3103J1030 Spring Return Damper Actuator
$55.00
quality
Belimo LMB24 SR Non Spring Return Proportional Damper Control Actuator 24VAC DC
Belimo LMB24 SR Non Spring Return Proportional Damper Control Actuator 24VAC DC
$42.99
quality
NEW Invensys MP 5433 0 0 3 Hydraulic Damper Actuator
NEW Invensys MP 5433 0 0 3 Hydraulic Damper Actuator
$75.00
quality
HONEYWELL CN7510A2001 Damper Actuator as photo snxxx0 New in old box lo
HONEYWELL CN7510A2001 Damper Actuator as photo snxxx0 New in old box lo
$189.15
quality
HONEYWELL CN7510A2001 Damper Actuator as photo sn9870 New in old box Pro
HONEYWELL CN7510A2001 Damper Actuator as photo sn9870 New in old box Pro
$149.15
quality
BELIMO DAMPER ACTUATOR FSLF120 US CCW 120VAC 50 60HZ 65 HOLDING 18VA RUNNING
BELIMO DAMPER ACTUATOR FSLF120 US CCW 120VAC 50 60HZ 65 HOLDING 18VA RUNNING
$20.00
quality
Honeywell MS3103J1030 Spring Return Damper Actuator
Honeywell MS3103J1030 Spring Return Damper Actuator
$59.95
quality
Belimo NFB24 S Damper Actuator Brand New
Belimo NFB24 S Damper Actuator Brand New
$35.00
quality
NEW Greenheck EF 1Fire  Smoke Damper 110 volt Actuator
NEW Greenheck EF 1Fire Smoke Damper 110 volt Actuator
$85.00
quality
SIEMENS 6 PNEU DAMPER ACTUATOR 331 3060 SEE DESC UNUSED 0217
SIEMENS 6 PNEU DAMPER ACTUATOR 331 3060 SEE DESC UNUSED 0217
$95.00
quality
BELIMO NFBUP On Off Damper Control Actuator Spring Return Fail Safe
BELIMO NFBUP On Off Damper Control Actuator Spring Return Fail Safe
$169.99
quality
HONEYWELL ML7284A3006 ROTARY DAMPER ACTUATOR REPLACEMENT
HONEYWELL ML7284A3006 ROTARY DAMPER ACTUATOR REPLACEMENT
$65.00
quality
KMC MCP 3631 36313000 ROTARY PNEUMATIC DAMPER ACTUATOR NEW
KMC MCP 3631 36313000 ROTARY PNEUMATIC DAMPER ACTUATOR NEW
$69.00
quality
Belimo AF24 US Damper Actuator Valve HVAC 24V AC DC
Belimo AF24 US Damper Actuator Valve HVAC 24V AC DC
$63.73
quality
EWC Controls MA ND5 ACTUATOR ONLY NEW REMOVED FROM DAMPER
EWC Controls MA ND5 ACTUATOR ONLY NEW REMOVED FROM DAMPER
$50.00
quality
BELIMO NMQ24 MFTUS PROPORTIONAL DAMPER ACTUATOR NEW IN BOX
BELIMO NMQ24 MFTUS PROPORTIONAL DAMPER ACTUATOR NEW IN BOX
$300.00
quality
JOHNSON CONTROLS D 3246 2 8 13 PSI DAMPER ACTUATOR
JOHNSON CONTROLS D 3246 2 8 13 PSI DAMPER ACTUATOR
$95.00
quality
3x Belimo NFB24 S  NFB24 Damper Actuators
3x Belimo NFB24 S NFB24 Damper Actuators
$175.00
quality
2 Ruskin Damper HVAC Control RH 120 S Spring Return Direct Coupled Actuator
2 Ruskin Damper HVAC Control RH 120 S Spring Return Direct Coupled Actuator
$54.99
quality
KELE 24V ACTUATOR KA 35 VAV Tri State 45 60 90 stroke and 8 Damper
KELE 24V ACTUATOR KA 35 VAV Tri State 45 60 90 stroke and 8 Damper
$37.95
quality
Honeywell Pneumatic Damper Actuator MP918A 1024 2 NEW
Honeywell Pneumatic Damper Actuator MP918A 1024 2 NEW
$499.99
quality
Honeywell Pneumatic Damper Actuator MP918B10062 NEW
Honeywell Pneumatic Damper Actuator MP918B10062 NEW
$499.99
quality
Belimo LF24 S US Damper Actuator FREE USPS PRIORITY SHIPPING
Belimo LF24 S US Damper Actuator FREE USPS PRIORITY SHIPPING
$59.99
quality

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Damper Actuator

Frequently Asked Questions...

how do you get a controllable modulated (0-10v) signal from a 24v transformer?

had this cool idea the other day. One of the 1st laws of Thermodynamics says hot air rises and cool air falls. I live in a two story home and in the summer time all is well but in the winter time the second floor is hot as heck while the first floor maintains the setpoint of the thermostat. for the last couple of years, during winter time, I have been closing the diffusers on the second floor and this has worked fairly well but is no fun. I want to go overboard with overcomplicating this so I got ahold of some damper actuators that are 0-10v and I figured I would install another stat (RTD) to drive the motor to maintain temperature -- "easier said than done"!. how do you get a modulated signal out of a constant source without going to Graingers and buying there PID controllers that are way overpriced?


Best Answer...

Answer:

If you are looking for a 0 -10 volt DC modulated voltage, you can fabricate a small circuit using an LM317T Pos (NTE956 / RS 276-1778). It is a very simple circuit using 2 capacitors, an on/off switch, 1 resister and a potentiometer for adjustment. Depending on the current draw, it is always a good idea to use a heat sink on the regulator.
I have used this circuit many times to adjust 12 or 24 volts to anything from 1.5 volts and up to the supply. I get the regulators at a local electronics distributor - I have included the Radio Shack and NTE cross referenced numbers.
Note: This is for DC voltage only. If I remember correctly, the basic circuit is printed on the back of the package at Radio Shack.


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