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Always assume that someone has already worked on this radio.

nomadradio

Analog Retentive
Apr 3, 2005
6,938
11,063
698
Louisville, KY
www.nomadradio.com
When checking a 40 year-old Browning Mark 4A transmitter, there is a list of routine failures and age problems to check.

And then there are the ghosts of technicians past.

Like this attempt to fix the carrier crystal after one lead broke off. We all know which road is paved with good intentions.

8sLyrf.jpg


It's tempting to attempt to salvage a crystal, rather than buy a new one. A new crystal fixed this problem without the risk that it would come apart again.

The tech who worked on this transmitter gets good-intention points for remembering the heat-sink compound when installing a new 150-Volt 10-Watt zener diode.

lepy1E.jpg


But remembering to solder the turret terminal is kind of a big deal, too.

Any time you poke into a radio this old it pays to keep a sharp eye out for silly stuff like this.

73
 

When checking a 40 year-old Browning Mark 4A transmitter, there is a list of routine failures and age problems to check.

And then there are the ghosts of technicians past.

Like this attempt to fix the carrier crystal after one lead broke off. We all know which road is paved with good intentions.

8sLyrf.jpg


It's tempting to attempt to salvage a crystal, rather than buy a new one. A new crystal fixed this problem without the risk that it would come apart again.

The tech who worked on this transmitter gets good-intention points for remembering the heat-sink compound when installing a new 150-Volt 10-Watt zener diode.

lepy1E.jpg


But remembering to solder the turret terminal is kind of a big deal, too.

Any time you poke into a radio this old it pays to keep a sharp eye out for silly stuff like this.

73
You are just too fussy but you did kinda give an a for effort. LOL
 

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