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 TEKTRONICS SPECTRUM ANALYSER
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 Return to top of page · Post #: 1 · Written at 4:58:16 PM on 10 February 2017.
Raykelly's avatar
 Location: Narre Warren, VIC
 Member since 1 April 2013
 Member #: 1322
 Postcount: 16

I have a Tektronics cro mdl 7603 frame with a spectrum analyser mdl 7L14
the first mixer stage is not sending ,I assume the diodes are shot.
I have information on fixing it but I dont have the time. Can any one tell me where I can obtain the complete mixer stage unit,instead of pulling the mixer unit apart and changing the diodes?
Ray Kelly HRSA Melbourne
raykelly.live.com.au


 
 Return to top of page · Post #: 2 · Written at 12:22:36 AM on 11 February 2017.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 2747

This is the second write of this as the third world NBN is having its monthly hissy fit.

There is a deceased estate of a guy in our Club that worked for Tektronics; I have not got an inventory of his stuff but it was all complete.

There is at least one in the Club that has the nous to fix it.

Marc


 
 Return to top of page · Post #: 3 · Written at 5:16:30 PM on 11 February 2017.
Tinkera123's avatar
 Location: Melbourne, VIC
 Member since 5 October 2009
 Member #: 555
 Postcount: 311

Hi Ray,

I have the 7603 with 7L13 Spectrum Analyser. Mine is working okay, and I understand that these front-ends are very sensitive to power input. I have built a 'protective' circuit for the input .... DC block and a couple of diodes .... so far, so good.

Can't help with fixing it ..... but I would like to know how you get on, as I'm sure that I will make a mistake one day.

What is mdl?

Have you searched for the circuit board in the States?? There are a couple of Tektronics Forums in Yahoo, but 7L13 info was very limited.

Marc, is this stuff available to non 'Club' people .... eg me??


‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
Cheers, Ian

 
 Return to top of page · Post #: 4 · Written at 6:59:36 PM on 12 February 2017.
Raykelly's avatar
 Location: Narre Warren, VIC
 Member since 1 April 2013
 Member #: 1322
 Postcount: 16

Thanks.
Marc can you give more details of the two guys you mentioned please.
Ray Kelly
HRSA Melbourne
raykelly.live.com.au


 
 Return to top of page · Post #: 5 · Written at 9:14:38 PM on 4 March 2017.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 2747

I will refer this on & you will likely get the info by email.


 
 Return to top of page · Post #: 6 · Written at 8:56:17 AM on 10 March 2017.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 2747

Done: Emails sent. Work in progress.


 
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