[AMRadio] heathkit swr bridge diodes


Geoff/W5OMR ars.w5omr at gmail.com
Tue Jan 30 22:28:58 EST 2007


Brett gazdzinski wrote:
> I took the 1N34a's out and put in some 1N270T's.
> 1N32a's are rated at 60 volts and 5 ma per the bag of
> them that I have.
> The 1N270t is rated for 80 volts and 200 ma per the bag.
>
> On the SA-2060 series tuners, you have to remove the
> box on the back that holds the switch, then drill out
> rivets holding the board in, unsolder the wire that runs
> from the input through the pickup coil, I unsoldered it at
> the switch. You can then get the board out enough to
> work on it. 
> To get at the pots to calibrate it, I drilled 4 small
> holes in the box facing the 4 pots that set the
> high and low power, forward and reflected.
>
> Using another meter, I adjusted the pots so the low and high
> power scales read correct.
>
> Ran the thing up to full power with modulation without problems.
> Good as new.

I've got hope!  :-)

Good info - thanks, Brett!

I also left the text  intact on purpose... makes it easier to find, when 
someone searches the archives.


--
73 = Best Regards,
GeoffW5OMR



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