will this work?

JonGain · 11th February 2011, 12:41 AM

Assuming it puts out the correct voltage should I scrap all the regulated circuit & just use the rectifiers or is there a way to make it work as is?
It is a Power supply board from a mid 80's Realistic integrated amp.

How can I figure out what to hook up where? it looked like the Red & Blue wires were used as power?

6L6 · 11th February 2011, 12:48 AM

Is there any information on the board where various wires hook up?

Specifically near the brown/blue that go to the transformer and also the black/red/orange that go to the transformer.

Also what does it say near the red/blue?

Could you take a photo of the bottom of the board?

JonGain · 11th February 2011, 12:53 AM

it just states pin numbers at those locations, however the smaller wires at the front have labels but they are for powering other boards that were in the amp.....tuner display etc.....
I'll take a picture of the bottom.

6L6 · 11th February 2011, 12:55 AM

Does it still have the mains plug attached? Could you plug it in and take some readings?

JonGain · 11th February 2011, 12:59 AM

I could, it is set up on a temp set up, I am uploading some more pics now.....I am a rookie but have some basic knowledge

JonGain · 11th February 2011, 01:03 AM

6L6 · 11th February 2011, 01:21 AM

Are there any more wires into the transformer other than the red/orange/black/orange/red and the dual blue/brown?

JonGain · 11th February 2011, 01:26 AM

Quote:

Originally Posted by 6L6

Are there any more wires into the transformer other than the red/orange/black/orange/red and the dual blue/brown?

Yes the AC orange & white can't see it in the pic....

6L6 · 11th February 2011, 01:37 AM

Ok, that helps... I was trying to figure just what in sam hill the primary was doing connected to the board. (I thought the primary was the brown/blue)

Before plugging it in, determine continuity of the secondary windings - for instance are the two browns a winding, or is it a blue and a brown?

Plug it in, and then get voltage readings on all the secondary wires. Be careful - electricity can be harmful or fatal! (This message brought to you by Lawyers...)

Once we know what the voltages are we can determine if it's appropriate for a chipamp.

BTW, do you have any project in mind?

JonGain · 11th February 2011, 01:40 AM

Quote:

Originally Posted by 6L6

Ok, that helps... I was trying to figure just what in sam hill the primary was doing connected to the board. (I thought the primary was the brown/blue)

Before plugging it in, determine continuity of the secondary windings - for instance are the two browns a winding, or is it a blue and a brown?

Plug it in, and then get voltage readings on all the secondary wires. Be careful - electricity can be harmful or fatal! (This message brought to you by Lawyers...)

Once we know what the voltages are we can determine if it's appropriate for a chipamp.

BTW, do you have any project in mind?

I'm building a LM3875
I may wait till tomorrow for readings, it's getting late here in the east

11th February 2011, 12:41 AM	#1
JonGain diyAudio Member Join Date: Jan 2011 Location: South Shore Lake Ontario	will this work? Assuming it puts out the correct voltage should I scrap all the regulated circuit & just use the rectifiers or is there a way to make it work as is? It is a Power supply board from a mid 80's Realistic integrated amp. How can I figure out what to hook up where? it looked like the Red & Blue wires were used as power? __________________ Jon.........~~~_/)~~~

11th February 2011, 12:48 AM	#2
6L6 diyAudio Member Join Date: Oct 2010 Location: Denver, Colorado	Is there any information on the board where various wires hook up? Specifically near the brown/blue that go to the transformer and also the black/red/orange that go to the transformer. Also what does it say near the red/blue? Could you take a photo of the bottom of the board? __________________ Pass Labs Pearl Phono -- Pass B1 Preamp -- Pass F5 amplifier -- Pass Labs Pearl 2

11th February 2011, 12:53 AM	#3
JonGain diyAudio Member Join Date: Jan 2011 Location: South Shore Lake Ontario	it just states pin numbers at those locations, however the smaller wires at the front have labels but they are for powering other boards that were in the amp.....tuner display etc..... I'll take a picture of the bottom. __________________ Jon.........~~~_/)~~~

11th February 2011, 12:55 AM	#4
6L6 diyAudio Member Join Date: Oct 2010 Location: Denver, Colorado	Does it still have the mains plug attached? Could you plug it in and take some readings? __________________ Pass Labs Pearl Phono -- Pass B1 Preamp -- Pass F5 amplifier -- Pass Labs Pearl 2

11th February 2011, 12:59 AM	#5
JonGain diyAudio Member Join Date: Jan 2011 Location: South Shore Lake Ontario	I could, it is set up on a temp set up, I am uploading some more pics now.....I am a rookie but have some basic knowledge __________________ Jon.........~~~_/)~~~


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

11th February 2011, 01:03 AM	#6
JonGain diyAudio Member Join Date: Jan 2011 Location: South Shore Lake Ontario	__________________ Jon.........~~~_/)~~~

11th February 2011, 01:21 AM	#7
6L6 diyAudio Member Join Date: Oct 2010 Location: Denver, Colorado	Are there any more wires into the transformer other than the red/orange/black/orange/red and the dual blue/brown? __________________ Pass Labs Pearl Phono -- Pass B1 Preamp -- Pass F5 amplifier -- Pass Labs Pearl 2

11th February 2011, 01:37 AM	#9
6L6 diyAudio Member Join Date: Oct 2010 Location: Denver, Colorado	Ok, that helps... I was trying to figure just what in sam hill the primary was doing connected to the board. (I thought the primary was the brown/blue) Before plugging it in, determine continuity of the secondary windings - for instance are the two browns a winding, or is it a blue and a brown? Plug it in, and then get voltage readings on all the secondary wires. Be careful - electricity can be harmful or fatal! (This message brought to you by Lawyers...) Once we know what the voltages are we can determine if it's appropriate for a chipamp. BTW, do you have any project in mind? __________________ Pass Labs Pearl Phono -- Pass B1 Preamp -- Pass F5 amplifier -- Pass Labs Pearl 2

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
2.1: How well does it work?	Spasticteapot	Subwoofers	5	22nd July 2010 11:57 AM
will this work	rtill	Solid State	24	26th March 2009 12:47 PM
will it work?	skinbeard	Car Audio	3	17th May 2004 01:58 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read