Looking For Output Transistors For Vintage Car Radio

65blkbkgt · 18th June 2007, 02:05 AM

Hi again,

I'm searching for some output transistors pictured below for a few old Philco car radios. Can anyone steer me in the right direction where I can purchase these or similar that would be compatible?
The numbers on the face are:

AR-14
6522 1012

I told you I was new

Much thanks!
Steve

poynton · 18th June 2007, 04:08 AM

Hi.

The number is almost certainly an in-house number. I have not seen it before.

Is this transistor the same size as the other one you were asking about?

Is the radio +ve ground?

If the answer is yes to both, then OC35 / OC28 or USA equivalents will work.

Andy

65blkbkgt · 18th June 2007, 04:18 AM

Hi Andy, Both are from different radio manufacturers but both were used in the same car and both are negative ground. Is this why I'm not able to find the correct ones? Hmmmm. Would the same outputs be the same for both?

poynton · 18th June 2007, 09:26 AM

Hi.

I meant negative ground.

Most of the output transistors from '60s radios were more or less the same ie PNP Germanium.

I had a box of OC35 and OC28 which I had no problems with when I had to use them as replacements.

Andy

65blkbkgt · 18th June 2007, 01:01 PM

That's great info.. I'm going to check Ebay and the internet to search for those. Maybe I'll come across someone selling a "lot" of them.

dangus · 18th June 2007, 09:35 PM

There is (or was) a company that reproduced vintage Germanium power transistors. I used them to repair a 1960's vintage power inverter once. The name just crawled out of the recesses of my brain "Germanium Power Devices". It looks like they've been eaten by IR, and only do photodetectors now: http://www.gpd-ir.com/index.htm But if you're desperate it couldn't hurt to ask them.

65blkbkgt · 18th June 2007, 11:01 PM

Thanks Dangus I'll try them. I found some compatibles on Ebay (GE-3) but the seller only has 2 of 'em. I'm sure I can find them around from time to time. I'll just have to keep checking and in the meantime try the link you sent me.

I appreciate it!
Steve

65blkbkgt · 19th June 2007, 06:49 PM

$25 for an output transistor? GULP! I was quoted that price for an OC28 compatible.

poynton · 19th June 2007, 09:34 PM

Hi.

They are not that expensive from the UK.

http://cgi.ebay.co.uk/OC28-CV7085_W0...QQcmdZViewItem

If I was at home, I could send you some but unfortunately, I am going to be stuck here in NZ for some weeks.

Andy

65blkbkgt · 19th June 2007, 09:35 PM

Hey Andy..........how 'bout if we hook up when you get home and in the meantime I'll look for a few. I can always use some.

Are the ones like in the link you sent me compatible with the ones mentioned above?

18th June 2007, 04:08 AM	#2
poynton Magneto the Gravity Man diyAudio Member Join Date: Mar 2005 Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)	Hi. The number is almost certainly an in-house number. I have not seen it before. Is this transistor the same size as the other one you were asking about? Is the radio +ve ground? If the answer is yes to both, then OC35 / OC28 or USA equivalents will work. Andy __________________ If it ain't broke, break it !! Then fix it again. It's called DIY !

18th June 2007, 09:26 AM	#4
poynton Magneto the Gravity Man diyAudio Member Join Date: Mar 2005 Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)	Hi. I meant negative ground. Most of the output transistors from '60s radios were more or less the same ie PNP Germanium. I had a box of OC35 and OC28 which I had no problems with when I had to use them as replacements. Andy __________________ If it ain't broke, break it !! Then fix it again. It's called DIY !

19th June 2007, 09:34 PM	#9
poynton Magneto the Gravity Man diyAudio Member Join Date: Mar 2005 Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)	Hi. They are not that expensive from the UK. http://cgi.ebay.co.uk/OC28-CV7085_W0...QQcmdZViewItem If I was at home, I could send you some but unfortunately, I am going to be stuck here in NZ for some weeks. Andy __________________ If it ain't broke, break it !! Then fix it again. It's called DIY !

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18th June 2007, 04:18 AM	#3
65blkbkgt diyAudio Member Join Date: Jun 2007	Hi Andy, Both are from different radio manufacturers but both were used in the same car and both are negative ground. Is this why I'm not able to find the correct ones? Hmmmm. Would the same outputs be the same for both?

18th June 2007, 01:01 PM	#5
65blkbkgt diyAudio Member Join Date: Jun 2007	That's great info.. I'm going to check Ebay and the internet to search for those. Maybe I'll come across someone selling a "lot" of them.

18th June 2007, 09:35 PM	#6
dangus diyAudio Member Join Date: May 2004 Location: Vancouver Island	There is (or was) a company that reproduced vintage Germanium power transistors. I used them to repair a 1960's vintage power inverter once. The name just crawled out of the recesses of my brain "Germanium Power Devices". It looks like they've been eaten by IR, and only do photodetectors now: http://www.gpd-ir.com/index.htm But if you're desperate it couldn't hurt to ask them.

18th June 2007, 11:01 PM	#7
65blkbkgt diyAudio Member Join Date: Jun 2007	Thanks Dangus I'll try them. I found some compatibles on Ebay (GE-3) but the seller only has 2 of 'em. I'm sure I can find them around from time to time. I'll just have to keep checking and in the meantime try the link you sent me. I appreciate it! Steve

19th June 2007, 06:49 PM	#8
65blkbkgt diyAudio Member Join Date: Jun 2007	$25 for an output transistor? GULP! I was quoted that price for an OC28 compatible.

19th June 2007, 09:35 PM	#10
65blkbkgt diyAudio Member Join Date: Jun 2007	Hey Andy..........how 'bout if we hook up when you get home and in the meantime I'll look for a few. I can always use some. Are the ones like in the link you sent me compatible with the ones mentioned above?

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