VLP SWR Bridge - Revision history

Imbluenote: /* BOM */

2016-02-22T01:55:36Z

BOM

← Older revision		Revision as of 01:55, 22 February 2016
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	QTY Part Desc Mouser #		QTY Part Desc Mouser #
	6 R1-R3/R6-R8 Resistor-51 ohms/½ watt Carbon Film 293-51-RC
			6 R1-R3/R6-R8 Resistor-51 ohms/½ watt Carbon Film 293-51-RC

	1 R4 Resistor-1k ohms/1/4 watt Carbon Film 291-1k-RC		1 R4 Resistor-1k ohms/1/4 watt Carbon Film 291-1k-RC

	1 R5 Potentiometer-10k—vertical mount 688-RK09L114001T		1 R5 Potentiometer-10k—vertical mount 688-RK09L114001T

	3 C1-C3 Capacitor-.01 ufd/50v Ceramic 594-K103K15X7RF5TL2 (or alt 21RX410-RC)		3 C1-C3 Capacitor-.01 ufd/50v Ceramic 594-K103K15X7RF5TL2 (or alt 21RX410-RC)

	1 D1 Schottky Diode 863-MBD301G		1 D1 Schottky Diode 863-MBD301G

	2 J1-J2 BNC Panel Connector 571-5-1634523-1 (or atl 523-112575)		2 J1-J2 BNC Panel Connector 571-5-1634523-1 (or atl 523-112575)

	1 M1 Tip Jack-Red 530-105-0802-1		1 M1 Tip Jack-Red 530-105-0802-1

	1 M2 Tip Jack-Black 530-105-0803-1		1 M2 Tip Jack-Black 530-105-0803-1

	1 Knob 6mm D-Shaft 450-4763		1 Knob 6mm D-Shaft 450-4763

	3 J3-J4-J5 2 pin header 538-22-03-2021		3 J3-J4-J5 2 pin header 538-22-03-2021

	3 Shunt 2 pin shorting for J3-J4-J5 151-8000-E		3 Shunt 2 pin shorting for J3-J4-J5 151-8000-E

	1 Enclosure* 616-74923-510-28		1 Enclosure* 616-74923-510-28



	*Mouser Part 616-74923-510-28, is what was originally used in the prototype, but there are many different sources. Radio Shack has Part # 270-1805, which is much larger than needed but cheaper than Mouser. Or a cheap alternative is Lowes #72440 plus 70972 (single gang box with metal blank cover), total with tax is under a dollar at this writing.		*Mouser Part 616-74923-510-28, is what was originally used in the prototype, but there are many different sources. Radio Shack has Part # 270-1805, which is much larger than needed but cheaper than Mouser. Or a cheap alternative is Lowes #72440 plus 70972 (single gang box with metal blank cover), total with tax is under a dollar at this writing.

Imbluenote: /* BOM */

2016-02-22T01:51:24Z

BOM

← Older revision		Revision as of 01:51, 22 February 2016
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	The Current BOM is below		The Current BOM is below
	~~<nowiki>~~
	QTY Part Desc Mouser #		QTY Part Desc Mouser #
	6 R1-R3/R6-R8 Resistor-51 ohms/½ watt Carbon Film 293-51-RC		6 R1-R3/R6-R8 Resistor-51 ohms/½ watt Carbon Film 293-51-RC
Line 63:		Line 63:
	3 Shunt 2 pin shorting for J3-J4-J5 151-8000-E		3 Shunt 2 pin shorting for J3-J4-J5 151-8000-E
	1 Enclosure* 616-74923-510-28		1 Enclosure* 616-74923-510-28
	~~</nowiki>~~
	*Mouser Part 616-74923-510-28, is what was originally used in the prototype, but there are many different sources. Radio Shack has Part # 270-1805, which is much larger than needed but cheaper than Mouser. Or a cheap alternative is Lowes #72440 plus 70972 (single gang box with metal blank cover), total with tax is under a dollar at this writing.		*Mouser Part 616-74923-510-28, is what was originally used in the prototype, but there are many different sources. Radio Shack has Part # 270-1805, which is much larger than needed but cheaper than Mouser. Or a cheap alternative is Lowes #72440 plus 70972 (single gang box with metal blank cover), total with tax is under a dollar at this writing.

Imbluenote: /* Refernces */

2014-05-15T11:28:55Z

Refernces

← Older revision		Revision as of 11:28, 15 May 2014
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	(3) Resistive SWR Bridge by Ian Keyser, http://www.gqrp.org/resistive_swr_bridge.pdf		(3) Resistive SWR Bridge by Ian Keyser, http://www.gqrp.org/resistive_swr_bridge.pdf

			(4) VLP SWR Meter by IdunBenHad, http://doityourselfchristmas.com/forums/showthread.php?20173-VLP-SWR-Meter

Imbluenote at 11:20, 15 May 2014

2014-05-15T11:20:40Z

Show changes

Imbluenote at 10:57, 15 May 2014

2014-05-15T10:57:24Z

← Older revision		Revision as of 10:57, 15 May 2014
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	[[File:VLP_SWR_step_10c.JPG]]		[[File:VLP_SWR_step_10c.JPG]]


			11) Install BNC connectors and Tip jacks to front panel. Leave the BNC jack nuts loose enough that they can shift slightly so it can move to align with the PBC.

			[[File:VLP_SWR_step_11.jpg]]



			12)




	== Refernces ==		== Refernces ==

Imbluenote: /* VLP SWR Bridge Construction */

2014-05-15T10:52:38Z

VLP SWR Bridge Construction

← Older revision		Revision as of 10:52, 15 May 2014
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	1) Inspect board for any obvious manufacturing defects		1) Inspect board for any obvious manufacturing defects

	2) Before Soldering any parts, prepare the front panel of your enclosure. You can use the template [[File:SWR3a-Front-Panel_1333828358.pdf]] or use the PCB to mark the enclosure lid or panel with a fine point sharpie or pencil for the drill positions for the BNC jacks and pot shaft. J1 and J2 are the BNC connectors. The via inside the R5 silk screen is the potentiometer marking location.		2) Before Soldering any parts, prepare the front panel of your enclosure. You can use the template ([[File:SWR3a-Front-Panel_1333828358.pdf]]) or use the PCB to mark the enclosure lid or panel with a fine point sharpie or pencil for the drill positions for the BNC jacks and pot shaft. J1 and J2 are the BNC connectors. The via inside the R5 silk screen is the potentiometer marking location.

	If marking the top of the panel make sure you have the top of the PCB (silk screen visible) while marking		If marking the top of the panel make sure you have the top of the PCB (silk screen visible) while marking

Imbluenote: /* VLP SWR Bridge Construction */

2014-05-15T10:52:05Z

VLP SWR Bridge Construction

← Older revision		Revision as of 10:52, 15 May 2014
Line 72:		Line 72:
	1) Inspect board for any obvious manufacturing defects		1) Inspect board for any obvious manufacturing defects

	2) Before Soldering any parts, prepare the front panel of your enclosure. You can use the template [[File:SWR3a-Front-Panel_1333828358.pdf] ~~here~~] or use the PCB to mark the enclosure lid or panel with a fine point sharpie or pencil for the drill positions for the BNC jacks and pot shaft. J1 and J2 are the BNC connectors. The via inside the R5 silk screen is the potentiometer marking location.		2) Before Soldering any parts, prepare the front panel of your enclosure. You can use the template [[File:SWR3a-Front-Panel_1333828358.pdf]] or use the PCB to mark the enclosure lid or panel with a fine point sharpie or pencil for the drill positions for the BNC jacks and pot shaft. J1 and J2 are the BNC connectors. The via inside the R5 silk screen is the potentiometer marking location.

	If marking the top of the panel make sure you have the top of the PCB (silk screen visible) while marking		If marking the top of the panel make sure you have the top of the PCB (silk screen visible) while marking

Imbluenote: /* VLP SWR Bridge Construction */

2014-05-15T10:51:42Z

VLP SWR Bridge Construction

← Older revision		Revision as of 10:51, 15 May 2014
Line 72:		Line 72:
	1) Inspect board for any obvious manufacturing defects		1) Inspect board for any obvious manufacturing defects

	2) Before Soldering any parts, use the PCB to mark the enclosure lid or panel with a fine point sharpie or pencil for the drill positions for the BNC jacks and pot shaft. J1 and J2 are the BNC connectors. The via inside the R5 silk screen is the potentiometer marking location.		2) Before Soldering any parts, prepare the front panel of your enclosure. You can use the template [[File:SWR3a-Front-Panel_1333828358.pdf] here] or use the PCB to mark the enclosure lid or panel with a fine point sharpie or pencil for the drill positions for the BNC jacks and pot shaft. J1 and J2 are the BNC connectors. The via inside the R5 silk screen is the potentiometer marking location.

	If marking the top of the panel make sure you have the top of the PCB (silk screen visible) while marking		If marking the top of the panel make sure you have the top of the PCB (silk screen visible) while marking
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	[[File:P1010477.JPG]][[File:P1010478.JPG]]		[[File:P1010477.JPG]][[File:P1010478.JPG]]

			For these three holes you will need to drill with a 3/8" bit.

			You will also need to mark and drill two holes for the tip jacks. Drill 1/4" for these.

	3) Insert R4 (1K-1/4 watt resistor). Part is not polarized and can be installed in either direction.		3) Insert R4 (1K-1/4 watt resistor). Part is not polarized and can be installed in either direction.

Imbluenote: /* VLP SWR Bridge Construction */

2014-05-09T11:31:44Z

VLP SWR Bridge Construction

← Older revision		Revision as of 11:31, 9 May 2014
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	10) Install R5 (potentiometer). There is a small tab on the potentiometer that is for alignment purposes, you can notch your panel for this or as it is really not needed file it off.		10) Prepare & Install R5 (potentiometer). There is a small tab on the potentiometer that is for alignment purposes, you can notch your panel for this or as it is really not needed file it off.

	[[File:VLP_SWR_step_10a.JPG]][[File:VLP_SWR_step_10b.JPG]]		[[File:VLP_SWR_step_10a.JPG]][[File:VLP_SWR_step_10b.JPG]]

Imbluenote: /* VLP SWR Bridge Construction */

2014-05-09T11:31:17Z

VLP SWR Bridge Construction

← Older revision		Revision as of 11:31, 9 May 2014
Line 127:		Line 127:

	10) Install R5 (potentiometer). There is a small tab on the potentiometer that is for alignment purposes, you can notch your panel for this or as it is really not needed file it off.		10) Install R5 (potentiometer). There is a small tab on the potentiometer that is for alignment purposes, you can notch your panel for this or as it is really not needed file it off.
	[[File:~~VLP_SWR_step_10c~~.JPG]][[File:VLP_SWR_step_10b.JPG]]
			[[File:VLP_SWR_step_10a.JPG]][[File:VLP_SWR_step_10b.JPG]]

	Place R5 on the board '''BUT DO NOT SOLDER AT THIS TIME'''. If your panel holes don't quite line up you may put stress on the solder joints and break them if you solder now.		Place R5 on the board '''BUT DO NOT SOLDER AT THIS TIME'''. If your panel holes don't quite line up you may put stress on the solder joints and break them if you solder now.