Modifying a CTE A300 amplifier
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Modifying a CTE A300 amplifier
so i have had an CTE A300 amplifier for several years, and i've always wanted to beef up the input cable and do something with the rx/tx switching relay as it's so slow i lose what others are saying to it, i've just stripped it tonight and will post some photos as i modify it.
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Re: Modifying a CTE A300 amplifier
to speed my relay up i put a 1N4737 zener a dioide in series but in the oposing direction to the flyback diode on the relays coil, todo this i use a desolder pump and removed one leg to put the zener diode in place and then solder them together.
so i put it back together and viola it works a treat soon as i un-key i have the unsquelched audio coming back and ssb still works nicely,
no more missing what people say as my relay was taking what seemed like forever to switch
so i put it back together and viola it works a treat soon as i un-key i have the unsquelched audio coming back and ssb still works nicely,
no more missing what people say as my relay was taking what seemed like forever to switch
26TM069
M3UBO-----> 2E0FML---->2E0PUC
M3UBO-----> 2E0FML---->2E0PUC
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- Super Member
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Re: Modifying a CTE A300 amplifier
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26TM069
M3UBO-----> 2E0FML---->2E0PUC
M3UBO-----> 2E0FML---->2E0PUC
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- Super Member
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Re: Modifying a CTE A300 amplifier
next i'm thinking to address the cabling as it could be thicker, i have some 16mm2 to use and i want to repalce the main on-off switch as says 6A on the side of it my clamp on meter says this draws 21A on FM
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M3UBO-----> 2E0FML---->2E0PUC
M3UBO-----> 2E0FML---->2E0PUC