[GreenKeys] GreenKeys Digest, Vol 108, Issue 38

[Rob Jarratt]

Mine is a brown board. 

> -----Original Message-----
> From: greenkeys-bounces at mailman.qth.net [mailto:greenkeys-
> bounces at mailman.qth.net] On Behalf Of Don Robert House
> Sent: 14 January 2013 18:47
> To: nagle at animats.com
> Cc: greenkeys at mailman.qth.net
> Subject: Re: [GreenKeys] GreenKeys Digest, Vol 108, Issue 38
> 
> Most of the boards with the traces coming of are phenolic which is why I
> had suggested Pliobond.
> However the last years of production were with modern circuit board
> material.
> 
> The old ones are brown the new ones are green.
> 
> Don
> K9TTY
> 
> On 14 Jan 2013, at 12:18 AM, John Nagle wrote:
> 
> On 1/13/2013 9:35 PM, greenkeys-request at mailman.qth.net wrote:
> > What can I do to reattach the detached track to the board?\
> 
> See
> 
> http://www.antiqueradios.com/forums/viewtopic.php?t=161606
> 
> for how the antique radio repair guys repair old PC boards.
> 
> Here's a PC board repair kit for $20.  Surplus.
> 
> http://shop.vetcosurplus.com/catalog/product_info.php?products_id=945&g
> clid=CImIk7aY57QCFYF7Qgod_2YAcw
> 
> Using cyanoacrylate cements (super glue) to glue traces is marginal - it
will
> burn if you solder in the area.  Epoxies that can withstand soldering
> temperature are better.
> 
> What are the boards in an ASR33 made of?  They're probably old phenolic
> boards, predating FR4.
> 
> 				John Nagle
> 
> 
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