That's awesome. I'm assuming the -02 is an updated compatible design so
would prefer that version. Ill reply off list with details. Thank you!
On Mar 30, 2016 9:28 PM, "jerry massengale j_massengale@...
[TekScopes]" <TekScopes@...> wrote:
Hi,
I have one 155-0049-02 and will check my cabinets tomorrow to see if i
have a -01. It would be $15 shiped to lower 48. respond off list to
j_massengale@...
Jerry Massengale
-----Original Message-----
From: Neil Elver neil.elver@... [TekScopes] <
TekScopes@...>
To: TekScopes <TekScopes@...>
Sent: Wed, Mar 30, 2016 7:47 pm
Subject: Re: [TekScopes] Introducing myself and my Tek 465 Project
A cheap USB oscilloscope will work to check ripple however so will a
voltmeter set to AC mode.
What sweep IC are you referring to?
Thanks for the tip on ripple and testing with a voltmeter. I found that as
an option after some digging later but didn't know if it would be accurate
enough to make diagnosis.
The scorching hot IC is part number 155-0049-01 and called a 'sweep
generator.' Here's one source
but it seems to be unavailable from there and out of stock on another site
here: I believe it's
U870 in the manual and someone with a similar issue mentioned it here:
I've confirmed a dead -8 volts at the regulator so my next steps are to
test and likely replace the rectifier.But it's hard to keep up my
enthusiasm on careful part swapping if that IC is unobtanium. I'd be fine
fixing the power supply and waiting out availability but disappointing when
the part cross reference sheet has only 4 components that don't have a
common replacement!
Thanks for your help! I can tell after a half a day the brainpower in this
group is great and even if I have to put this Tek project on hold I'm sure
I'll get a working one soon.
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