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 AK 35 deaf
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 Return to top of page · Post #: 1 · Written at 8:55:24 PM on 12 November 2014.
Baz F's Gravatar
 Baz F
 Location: Calista, WA
 Member since 1 April 2014
 Member #: 1540
 Postcount: 81

Marcc,

re my AK 35:

I have applied a signal at about 600kHz, plus tone, to the grid of the 3rd Rf amp, nothing through it. All connections and coils look Ok and different valves tried in there. Voltages check Ok.

For a simple radio it is giving me the heebie jeebies.


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Baz

VK6MU
 
 Return to top of page · Post #: 2 · Written at 11:53:30 PM on 12 November 2014.
Marcc's avatar
 Marcc
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5254

See pdf's on antique radio forum USA. There is a method for synchronizing the tuning gangs.

This I think is part of the problem, if not the problem. If you change parts in the RF section, they can throw it off frequency & many manufacturers state that.

Marc


 
 Return to top of page · Post #: 3 · Written at 9:06:57 AM on 13 November 2014.
Baz F's Gravatar
 Baz F
 Location: Calista, WA
 Member since 1 April 2014
 Member #: 1540
 Postcount: 81

OK Marcc, thanks.
I was hoping to avoid that, it was set up when I got it, but someone had obviously been in there before.


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Baz

VK6MU
 
 Return to top of page · Post #: 4 · Written at 10:28:27 AM on 13 November 2014.
Marcc's avatar
 Marcc
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5254

Anything, where someone has been there before needs checking, especially before you plug it in.

With new parts & "them" who knows where the calibration is? Once RF parts have been replaced,the choice is clear............

Marc
 
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